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Littérature scientifique sur le sujet « Radiative proce »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 10 mars 2023

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Articles de revues sur le sujet "Radiative proce"

Yang, Guangwei, Jianying Li, Jiangjun Yang et Zijian Xing. « Dual-band slot microstrip patch antennas with dual-radiation modes for wireless communication ». International Journal of Microwave and Wireless Technologies 12, n^o 2 (31 juillet 2019) : 155–62. http://dx.doi.org/10.1017/s1759078719001065.

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AbstractIn this paper, a novel compact dual-band microstrip patch antenna with dual-radiation modes is investigated. The proposed antenna consists of a rectangular ground plane, a U-shaped feed probe, and an H-shaped slot radiating patch. By adjusting the size of these structures, a dual-band antenna can be obtained. In the low-frequency band, the antenna can radiate one radiation beam with high gain. In the high-frequency band, the antenna can achieve monopole-like radiation pattern. Therefore, an antenna prototype is fabricated and measured for validation. Good agreement between the simulated and measured results is observed in this paper. The antenna's operating frequency ranges are 3.6–3.85 GHz in the low-frequency band and 5.1–6.1 GHz in the high-frequency band with the reflection coefficient less than −10 dB. At 3.7 GHz, the antenna radiate one beam with 8.8 dBi realized gain. At 5.5 GHz, it exhibits dual-radiation beams directed to −48 and 48° with 5.6 and 5.5 dBi realized gain in the xoz-plane and −48 and 48° with 2.9 and 3.0 dBi realized gain in the yoz-plane. Therefore, the proposed antenna is a good candidate for wireless communication systems.

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BALUGIN, N. V., B. A. FOMIN, A. D. LYKOV et V. A. YUSHKOV. « ESTIMATION OF STRATOSPHERIC AEROSOL EFFECTS ON STRATOSPHERIC RADIATION BUDGET ACCORDING TO OPTICAL BALLOON BACKSCATTER PROBE AND RADIATION MODELING ». Meteorologiya i Gidrologiya, n^o 10 (octobre 2022) : 121–29. http://dx.doi.org/10.52002/0130-2906-2022-10-121-129.

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A method for evaluating stratospheric aerosol effects on the stratospheric radiation budget according to balloon sounding with an optical aerosol backscatter probe is presented. It is shown for the sounding in the equatorial zone under conditions of perturbed aerosol filling of the stratosphere that observed changes in the composition of stratospheric aerosol lead to significant changes (2-3-fold) in radiative heating. The evaluation technique is based on using the radiative (line-by-line and Monte Carlo) model of solar radiation transfer and can be especially useful in case of episodical perturbations of the stratospheric aerosol layer resulting from anthropogenic and natural disasters accompanied by aerosol emissions.

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Chaulagain, U., C. Stehlé, P. Barroso, M. Kozlova, J. Nejdl, F. Suzuki Vidal et J. Larour. « Target Design for XUV Probing of Radiative Shock Experiments ». Journal of Nepal Physical Society 6, n^o 1 (6 août 2020) : 30–41. http://dx.doi.org/10.3126/jnphyssoc.v6i1.30514.

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Radiative shocks are strong shocks characterized by plasma at a high temperature emitting an important fraction of its energy as radiation. Radiative shocks are commonly found in many astrophysical systems and are templates of radiative hydrodynamic flows, which can be studied experimentally using high-power lasers. This is not only important in the context of laboratory astrophysics but also to benchmark numerical studies. We present details on the design of experiments on radiative shocks in xenon gas performed at the kJ scale PALS laser facility. It includes technical specifications for the tube targets design and numerical studies with the 1-D radiative hydrodynamics code MULTI. Emphasis is given to the technical feasibility of an XUV imaging diagnostic with a 21 nm (~58 eV) probing beam, which allows to probe simultaneously the post-shock and the precursor region ahead of the shock. The novel design of the target together with the improved X-ray optics and XUV source allow to show both the dense post-shock structure and the precursor of the radiative shock.

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Coffing, Shane X., Chris L. Fryer, Harry F. Robey, Christopher J. Fontes, Suzannah R. Wood, Pawel M. Kozlowski, Heather M. Johns et al. « Inferring the temperature profile of the radiative shock in the COAX experiment with shock radiography, Dante, and spectral temperature diagnostics ». Physics of Plasmas 29, n^o 8 (août 2022) : 083302. http://dx.doi.org/10.1063/5.0081167.

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Predicting and modeling the behavior of experiments with radiation waves propagating through low-density foams require a detailed quantification of the numerous uncertainties present. In regimes where a prominent radiative shock is produced, key dynamical features include the shock position, temperature, and curvature and the spatial distribution and temperature of the corresponding supersonic radiation wave. The COAX experimental platform is designed to constrain numerical models of such a radiative shock propagating through a low-density foam by employing radiography for spatial and shock information, Dante for characterizing the x-ray flux from the indirectly driven target, and a novel spectral diagnostic designed to probe the temperature profile of the wave. In this work, we model COAX with parameterized 2D simulations and a Hohlraum-laser modeling package to study uncertainties in diagnosing the experiment. The inferred temperature profile of the COAX radiation transport experiments has been shown to differ from simulations more than expected from drive uncertainties that have been constrained by simultaneous soft x-ray flux and radiography measurements.

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Tiranov, Alexey, Vasiliki Angelopoulou, Cornelis Jacobus van Diepen, Björn Schrinski, Oliver August Dall’Alba Sandberg, Ying Wang, Leonardo Midolo et al. « Collective super- and subradiant dynamics between distant optical quantum emitters ». Science 379, n^o 6630 (27 janvier 2023) : 389–93. http://dx.doi.org/10.1126/science.ade9324.

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Photon emission is the hallmark of light-matter interaction and the foundation of photonic quantum science, enabling advanced sources for quantum communication and computing. Although single-emitter radiation can be tailored by the photonic environment, the introduction of multiple emitters extends this picture. A fundamental challenge, however, is that the radiative dipole-dipole coupling rapidly decays with spatial separation, typically within a fraction of the optical wavelength. We realize distant dipole-dipole radiative coupling with pairs of solid-state optical quantum emitters embedded in a nanophotonic waveguide. We dynamically probe the collective response and identify both super- and subradiant emission as well as means to control the dynamics by proper excitation techniques. Our work constitutes a foundational step toward multiemitter applications for scalable quantum-information processing.

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Keeler, Jason M., Brian F. Jewett, Robert M. Rauber, Greg M. McFarquhar, Roy M. Rasmussen, Lulin Xue, Changhai Liu et Gregory Thompson. « Dynamics of Cloud-Top Generating Cells in Winter Cyclones. Part I : Idealized Simulations in the Context of Field Observations ». Journal of the Atmospheric Sciences 73, n^o 4 (24 février 2016) : 1507–27. http://dx.doi.org/10.1175/jas-d-15-0126.1.

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Abstract This paper assesses the influence of radiative forcing and latent heating on the development and maintenance of cloud-top generating cells (GCs) in high-resolution idealized Weather Research and Forecasting Model simulations with initial conditions representative of the vertical structure of a cyclone observed during the Profiling of Winter Storms campaign. Simulated GC kinematics, structure, and ice mass are shown to compare well quantitatively with Wyoming Cloud Radar, cloud probe, and other observations. Sensitivity to radiative forcing was assessed in simulations with longwave-only (nighttime), longwave-and-shortwave (daytime), and no-radiation parameterizations. The domain-averaged longwave cooling rate exceeded 0.50 K h−1 near cloud top, with maxima greater than 2.00 K h−1 atop GCs. Shortwave warming was weaker by comparison, with domain-averaged values of 0.10–0.20 K h−1 and maxima of 0.50 K h−1 atop GCs. The stabilizing influence of cloud-top shortwave warming was evident in the daytime simulation’s vertical velocity spectrum, with 1% of the updrafts in the 6.0–8.0-km layer exceeding 1.20 m s−1, compared to 1.80 m s−1 for the nighttime simulation. GCs regenerate in simulations with radiative forcing after the initial instability is released but do not persist when radiation is not parameterized, demonstrating that radiative forcing is critical to GC maintenance under the thermodynamic and vertical wind shear conditions in this cyclone. GCs are characterized by high ice supersaturation (RHice > 150%) and latent heating rates frequently in excess of 2.00 K h−1 collocated with vertical velocity maxima. Ice precipitation mixing ratio maxima of greater than 0.15 g kg−1 were common within GCs in the daytime and nighttime simulations.

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Akdagli, Ali, et Abdurrahim Toktas. « Design of wideband orthogonal MIMO antenna with improved correlation using a parasitic element for mobile handsets ». International Journal of Microwave and Wireless Technologies 8, n^o 1 (15 septembre 2014) : 109–15. http://dx.doi.org/10.1017/s1759078714001263.

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In this paper, a novel design of compact wideband multiple-input multiple-output (MIMO) antenna operating over a frequency range of 1.8–4.0 GHz at 10 dB is presented for mobile terminals. The MIMO antenna design consists of two symmetrical and orthogonal radiating elements with a small size of 15.5 × 16.5 mm2 printed on the corners of a mobile circuit board. The radiating element is composed of four meandered monopole branches with a strip-line fed by a probe. By triangularly trimming the corners of the common ground plane beneath the radiating elements, not only the mutual coupling is reduced, but also impedance bandwidth is increased. Although, the antenna in this form has sufficient correlation level between the radiating elements for MIMO operation, a novel design of plus-shaped parasitic element is inserted to the ground plane between those radiating elements in order to further enhance the isolation. The performance of the MIMO antenna is investigated in terms of s-parameters, radiation pattern, gain, envelope correlation coefficient (ECC), and total active reflection coefficient (TARC), and is verified through the measurements. The results demonstrate that the proposed MIMO antenna has good characteristics of wideband, isolation, gain, radiation pattern, and is compatible with LTE, WiMAX, and WLAN, besides it is small, compact, and embeddable in mobile terminals.

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Savard, N., G. Fubiani et M. Dehnel. « Comparison of Langmuir probe and optical emission spectroscopy on a volume-cusp filament ion source using helium ». Review of Scientific Instruments 93, n^o 10 (1 octobre 2022) : 103303. http://dx.doi.org/10.1063/5.0092156.

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D-Pace has a Penning ion source that runs with helium for studies of α-particle production. We want to study its plasma properties as a function of varying operational parameters, which results in varied output ion beam characteristics. In order to diagnose the ion source plasma, a collisional-radiative code for helium to be used with optical emission spectroscopy measurements is developed. This has the advantage of being non-invasive, which allows for measurements using the emitted light from the plasma. This collisional-radiative code is shown to compare well with the Yacora on the Web model developed at IPP-Garching, and improves upon it with the addition of radiation trapping. Furthermore, the sensitivity of this model to the inclusion of additional excited state populations and non-Maxwellian electron energy distribution functions is investigated. It is shown that non-Maxwellian distributions can significantly affect spectroscopy measurements. This diagnostic is benchmarked to Langmuir probe measurements on the TRIUMF-licensed volume-cusp ion source to determine whether it can replicate the measured electron density and electron temperature as a function of varied operational parameters. The operational parameters are helium gas flow (10–40 SCCM), arc voltage (100–200 V), and arc current (1–5 A). The measured plasma properties, while different in absolute value, have similar trends for each operational parameter except when varying arc voltage. It is shown that this mismatch as a function of arc voltage is likely due to high energy non-Maxwellian electrons from the cathode sheath, which are not included within the collisional-radiative model.

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Calvagna, Chiara, Andrea Azelio Mencaglia, Iacopo Osticioli, Daniele Ciofini et Salvatore Siano. « Novel Probe for Thermally Controlled Raman Spectroscopy Using Online IR Sensing and Emissivity Measurements ». Sensors 22, n^o 7 (31 mars 2022) : 2680. http://dx.doi.org/10.3390/s22072680.

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Temperature rise during Raman spectroscopy can induce chemical alterations of the material under analysis and seriously affect its characterization. Thus, such photothermal side effects can represent a serious problem to be carefully controlled in order to safeguard the integrity of the material and its spectral features. In this work, an innovative probe for thermally controlled portable Raman spectroscopy (exc. 785 nm) equipped with infrared sensing lines was developed. It included an infrared source and two thermopile sensors, which allowed to perform real-time measurements of the local emissivity of the material surface under laser excitation. The emissivity, which is needed in order to monitor the temperature of the irradiated surface through infrared radiation measurements, represents the complementary component of the reflectance in the radiative energy balance. Thus, total reflectance, temperature measurements and Raman spectroscopy were integrated in the present probe. After independently assessing the reliability of the former in order to derive the emissivity of variety of materials, the probe was successfully applied on pigments, paint layers, and a painting on canvas. The results achieved evidence the significant exploitation potential of the novel tool.

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Johnston, Christopher O., Brian R. Hollis et Kenneth Sutton. « Radiative Heating Methodology for the Huygens Probe ». Journal of Spacecraft and Rockets 44, n^o 5 (septembre 2007) : 993–1002. http://dx.doi.org/10.2514/1.26424.

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Thèses sur le sujet "Radiative proce"

RAVASIO, MARIA EDVIGE. « New insights into the physics of Gamma-Ray Burst prompt emission ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2022. http://hdl.handle.net/10281/350073.

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La natura dell'emissione prompt dei GRBs è ancora incerta, impedendoci di studiare le loro proprietà fisiche strettamente connesse a fondamentali questioni aperte come la composizione del getto e la dissipazione dell'energia. Il tipico spettro osservato di emissione prompt è modellato da due leggi di potenza con pendenze α e β collegate in modo uniforme a un picco di energia Epeak. Il raffreddamento rapido di elettroni per emissione di sincrotrone è il processo radiativo più naturale, data la forma non termica dello spettro osservato e i forti campi magnetici previsti nella regione emittente. Tuttavia, gli spettri osservati di migliaia di GRBs sono più ripidi delle previsioni di sincrotrone. Oganesyan et al.2017 ha recentemente scoperto nei raggi X la presenza di un ulteriore break spettrale, identificato come la frequenza di raffreddamento del sincrotrone. Motivata da questo risultato, ho cercato la presenza di un break ad energie più alte, utilizzando i dati Fermi/GBM. L'analisi dei 10 GRBs più lunghi e luminosi ha rivelato nel ~70% degli spettri la presenza di una energia Ebreak, situata tra ~20 e 500 keV. Le pendenze spettrali al di sotto e al di sopra del break sono consistenti con i valori previsti per l'emissione di sincrotrone in regime di raffreddamento rapido (-2/3 e -3/2, rispettivamente). Le simulazioni spettrali suggeriscono che la separazione di Ebreak da Epeak e la statistica dello spettro ostacolano l'identificazione del break, il che potrebbe spiegare perché questa energia fondamentale non è stata identificata prima. La consistenza con l'emissione di sincrotrone è stata testata anche adattando un modello di sincrotrone allo spettro di GRB 180720B, confermando i risultati ottenuti con la funzione empirica. Inoltre, ho studiato, per la prima volta, la presenza del break in 10 GRB corti: contrariamente a quelli lunghi, i GRB corti non mostrano il break, ma la pendenza spettrale a bassa energia è consistente con -2/3. Questi risultati implicano dei parametri fisici che sfidano il modello standard dei GRBs. Il rapporto piccolo delle frequenze di sincrotrone (vicino all'unità per i GRB corti) implica che le particelle che emettono non si raffreddano completamente. Ciò richiede un basso campo magnetico (B'≲10 G) che implica una regione di emissione distante (R~1016 cm), in contrasto con la tipica variabilità di ~ms dei GRB. Una possibile soluzione può venire dallo scenario protone-sincrotrone: grazie al tempo di raffreddamento più lungo dei protoni, questo scenario può spiegare lo spettro osservato assumendo valori standard sia per il campo magnetico (B'~106 G) che per la distanza (R~1013 cm). Inoltre, ho ampliato il mio studio dello spettro di emissione prompt includendo la sua caratterizzazione a energie più elevate. L'aggiunta dei dati LAT nell'analisi spettrale ha rivelato in 10 burst su 22 la presenza di un cutoff ad alte energie (~100 MeV), che, interpretati come dovuti all'opacità di produzione di coppie, forniscono stime del fattore di Lorentz Γ del getto nell'intervallo 100-400. L'estensione alle alte energie mi ha permesso anche di studiare la pendenza β dello spettro, che è un parametro chiave per vincolare le corrispondenti pendenze p della distribuzione energetica delle particelle accelerate. Assumendo emissione di sincrotrone, ho trovato un'ampia distribuzione di p, centrata intorno a p=2,86 (con una coda fino a p~5-7). Date le incertezze teoriche sulla distribuzione dell'energia delle particelle accelerate in shock lievemente relativistici, questi risultati forniscono utili punti di riferimento osservativi per lo sviluppo della teoria dell'accelerazione delle particelle applicata al caso di emissione prompt. Il mio progetto di dottorato ha compreso anche lo studio dell'emissione a frequenze più basse dei primi 3 GRB rilevati ad energie ~TeV (GRB 180720B, GRB 190114C, GRB 190829A), che mi ha permesso di trovare interessanti vincoli sui parametri macro e micro-fisici dei GRBs.
The nature of the GRB prompt emission is still uncertain, preventing us from constraining the sources' physical properties, which are strictly connected to fundamental open issues such as jet composition and energy dissipation. The typical observed prompt emission spectrum consists of two power-laws with slopes α and β smoothly connected at a peak energy Epeak. Synchrotron from fast cooling electrons is the most natural radiative process, given the non-thermal shape of the observed spectrum and the strong magnetic fields expected in the emitting region. However, the observed spectra of thousands of GRBs being harder than synchrotron predictions represented a major issue for decades. Oganesyan et al. 2017 recently discovered in the soft X-rays the presence of an additional spectral break, which has been identified as the synchrotron cooling frequency. Motivated by this result, I searched for the presence of a break at higher energies, using Fermi/GBM data. The time-resolved analysis of the 10 long brightest GRBs has revealed in the ~70% of the spectra the presence of a break energy Ebreak, located between ~20 and 500 keV. The slopes of the power-laws below and above the break are remarkably consistent with the predicted values for synchrotron emission in fast cooling regime (-2/3 and -3/2, respectively). Spectral simulations suggest that the separation of Ebreak from Epeak and the photon statistics of the spectrum can hamper the identification of the break, which might explain why this fundamental feature has not been identified before. The consistency with synchrotron emission has been tested also fitting a physical synchrotron model to the spectrum of the long GRB 180720B, confirming the results obtained with the empirical function. In addition, I investigated, for the first time, the presence of the break in 10 short GRBs: contrary to long ones, short GRBs do not show the break, but the low-energy photon index is consistent with -2/3. The results presented in this thesis imply a set of physical parameters that challenges the GRB standard model. The relative small ratio of the synchrotron frequencies (closer to unity for short GRBs) implies that the emitting particles do not cool completely. In turn this requires a low magnetic field (B’≲10 G) implying a distant emission region (R~1016cm), at odds with the typical ~ms variability timescale of GRBs. A possible solution may come from the proton-synchrotron scenario: thanks to the longer cooling timescale of the protons, this scenario can explain the observed spectral shape assuming standard values both for the magnetic field (B’~106 G) and for the radius of the emitting region (R~1013cm). Moreover, I expanded my study of the prompt emission spectrum by including its characterization at higher energies. The addition of LAT data in the spectral analysis revealed in 10 out of 22 bursts the presence of a spectral cutoff at high energies (~100 MeV): interpreted as due to pair-production opacity, they provide estimates of the bulk Lorentz factor Γof the jet in the range 100-400. The extension at high energies allowed me also to study the high-energy power-law slope β, which is a key parameter to constrain the corresponding slopes p of the underlying energy distribution of non-thermal accelerated particles. Assuming the emission as due to synchrotron, I found a broad distribution of p, centered around p=2.86 (with a tail up to p~5-7). Given the theoretical uncertainties on the energy distribution of accelerated particles in mildly-relativistic shocks, these results provide useful observational benchmarks for the development of the theory of particle acceleration applied to the prompt emission case. My PhD project also included the study of the emission at lower frequencies of the first 3 GRBs detected at ~TeV energies (GRB 180720B, GRB 190114C, GRB 190829A), which allowed me to find interesting constraints on the macro- and micro-physical parameters of GRBs.

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Gilblas, Remi. « Mesure de champs de températures vraies par thermo-réflectométrie proche infrarouge ». Thesis, Toulouse, INSA, 2012. http://www.theses.fr/2012ISAT0012/document.

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La mesure de champs de température sans contact est un paramètre clé pour l'optimisation et le contrôle des procédés. Les systèmes actuels présentent des limitations, particulièrement sur des surfaces hétérogènes et/ou dans des conditions dynamiques pouvant entraîner une altération de la surface. Ces restrictions sont causées par la méconnaissance de l'émissivité de la surface qui est une fonction complexe de nombreuses grandeurs physiques (température, longueur d'onde, rugosité, direction de détection). La thèse présentée propose le développement complet d'une nouvelle méthode de mesure de champs de température vraie, dénommée THERMOREFLECTOMETRIE, applicable sur tout type de matériaux opaques, dans la gamme [300-1000]°C. Elle permet la mesure en ligne de l'émissivité par le couplage d'une étape classique de THERMOGRAPHIE avec une étape de REFLECTOMETRIE laser. La démarche adoptée consiste premièrement en l'analyse critique de la méthode et de ses facteurs d'influence, ainsi que du dimensionnement optimal des éléments par des études en simulations. Ensuite un prototype opérationnel est mis en oeuvre et ses défauts sont caractérisés, du point de vue d'un système de type CAMERA, et les corrections nécessaires sont mises en place. Enfin, les performances expérimentales sont évaluées sur des scènes thermiques complexes et hétérogènes qui mettent en évidence la bonne précision du prototype pour tous les échantillons testés
True temperature field measurement is a key parameter for the optimization and the control of industrial processes. Current systems present limitations, especially on heterogeneous surfaces and/or in dynamical conditions involving the surface's variation. These restrictions are due to the ignorance of the surface's emissivity, which is a complex function of many physical quantities (temperature, wavelength, roughness, direction of detection). This thesis presents the complete development of a new method of true temperature field measurement, called Thermoreflectometry, applicable on any kind of opaque material, in the range [300-1000]°C. It allows the on-line measurement of emissivity by mixing a step of classical THERMOGRAPHY with a step of laser REFLECTOMETRY. The approach of this work is, first, the critical analysis of the method and its influence quantities, and then the optimal dimensionment of the components by simulation studies. Thirdly, a prototype is built and its defaults are characterized, following a CAMERA-based point of view, and the possible corrections are implemented. Finally, the experimental performances are estimated on some complex heterogeneous thermal scenes which emphasize the prototype's precision for all the tested samples

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Hancock, Jason. « Evaluation of the timing characteristics of various PET detectors using a time alignment probe ». Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=18467.

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Time alignment is performed on a conventional PET scanner in order to reduce the noise in the image from undesirable interactions, called randoms. In time of flight scanners this alignment is even more critical in order to place the position of an annihilation accurately. Traditionally, the alignment is an iterative process done by adjusting time offsets and recording the count rate until it is maximized. We have designed and built a positron detector that can be placed in the PET scanner. This enables each crystal in the scanner to be aligned to the same event (the positron detection), providing a constant reference to each crystal. This both increases the accuracy of the alignment and the speed in which it can be done.
L'alignement de temps est effectué sur un TEP conventionnelle pour réduire le bruit dans l'image causé par des interactions hasard. Dans les appareils utilisant le temps-de-vol, cet alignement est essentiel pour bien connaitre la position exacte de l'annihilation. Traditionnellement, l'alignement est un processus répétitif accompli en ajustant les décalés de temps et en enregistrant le taux de compte jusqu'il soit maximisé. Nous avons créé un détecteur de positron que nous pouvons placer l'intrieur du PET. Ceci nous permet d'aligner chaque cristal dans le scanner au même événement (la détection de positron), et de fournir une référence constante à chaque cristal. Ceci augmente la précision et la vitesse de l'alignement.

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Tranchant, Laurent. « Transferts radiatifs de champ proche guidés : nanostructures à phonon-polaritons de surface ». Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2015. http://www.theses.fr/2015ECAP0001/document.

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La miniaturisation des transistors atteignant aujourd’hui des tailles de l’ordrede la dizaine de nanomètres a introduit des problèmes de contrôle de la chaleuraux courtes échelles. Ce défi industriel, parmi d’autres, a permis l’émergencede l’étude des transferts thermiques à l’échelle nanométrique. Un des axes derecherche de cette thématique concerne le rayonnement de champ proche. Ils’agit de comprendre le comportement des ondes thermiques sur des distancesinférieures à leur longueur d’onde. A cette échelle les ondes contenant la densitéénergétique la plus importante sont des ondes évanescentes, confinées ensurface. Le phonon-polariton de surface (PPS) en est un type : c’est une ondeévanescente se propageant à la surface de matériaux polaires et diélectriques.L’objectif de ce travail de thèse est d’examiner la propagation de PPS le longde la surface de tubes de verre micrométriques, et de montrer en quoi cettegéométrie favorise le transfert de chaleur par le biais de ces ondes.Une étude théorique a été menée pour justifier l’utilisation de ce guide d’ondesde chaleur dont la conductivité thermique peut être jusqu’à doublée grâce auxPPS. La présence des PPS est ensuite détectée expérimentalement. En effetla diffraction de ces ondes à la pointe du tube est décelée par un ensemblemicroscope-spectromètre à transformée de Fourier IR. Le spectre du rayonnementobtenu prouve la diffraction de PPS grâce à leurs signatures spectralesspécifiques
Miniaturization of transistors, whose sizes reach a few tens of nanometers nowadays,implies new problems of heat control at very short scales. This big challenge among others enabled the emergence of nanoscale heat transfer as a new research domain. Near-field heat transfer is one of the axis of this thematic.It concerns the behavior of thermal waves at a scale shorter than their wave lengths.Under these conditions the waves with the highest energy density are evanescent, that is confined at the surface. Surface phonon-polariton (SPhP) is a particular case of an evanescent wave propagating at the surface of a polar dielectric material. This PhD work consists in examining SPhP propagation along the surface of micrometric glass tubes and in proving the ability of these waves to enhance heat transfer in these systems.A theoretical analysis has been carried out to justify the use of such heat waveguides whose thermal conductivity can be doubled due to SPhP. The experimental detection of those waves based on their diffraction at the tip of the glass tubes is then presented. This emission is measured thanks to the assembly of a microscope and a Fourier-transform IR spectrometer. The presence of SPhPs is proved through measured spectra exhibiting their characteristic spectral signature

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Regan, Donough Michael. « Measuring CMB non-Gaussianity as a probe of inflation and cosmic strings ». Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609806.

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Renaud, James. « Development of a graphite probe calorimeter for absolute clinical dosimetry : numerical design optimization, prototyping and experimental proof-of-concept ». Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=110689.

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In this work, the feasibility of absolute dose to water measurements using a small scale graphite probe calorimeter (GPC) in a clinical environment is established. A numerical design optimization study was conducted by simulating the heat transfer in the GPC resulting from irradiation using a finite element method software package. The choice of device shape, dimensions and materials was made to minimize the heat loss in the sensitive volume of the GPC. The resulting design, which incorporates a novel aerogel-based thermal insulator, was built in-house. Absorbed dose to water measurements were made under standard conditions in a 6 MV 1000 MU/min photon beam and subsequently compared against TG-51 derived values. The average measured dose to water was 95.7 ± 1.4 cGy/100 MU, as compared to an expected value of 96.6 cGy/100 MU. The Monte Carlo-calculated graphite to water dose conversion factor was 1.099, while the derived heat loss correction factors varied between 1.005 and 1.013. The most significant sources of uncertainty were the repeatability (type A, 1.4%) and thermistor calibration (type B, 2.1%). The contribution of these factors to the overall uncertainty is expected to decrease significantly upon the implementation of active thermal stabilization provided by a temperature controller and direct electrical calibration, respectively. This proof of concept demonstrates the feasibility of using the GPC as a practical clinical absolute photon dosimeter and lays the foundation for a miniaturized version suitable for small and composite field dosimetry.
Dans ce travail, la faisabilité de la mesure de dose d'eau absolue à l'aide d'un calorimètre à petite gamme de graphite sonde (GPC) dans un environnement clinique est établi. Une étude de conception d'optimisation numérique a été réalisée en simulant le transfert de chaleur résultant de l'irradiation dans le GPC avec un logiciel d'analyse par éléments finis. Le choix de la forme, des dimensions et des matériaux a été fait pour minimiser la perte de chaleur dans le volume sensible du GPC. La conception résultante, qui intègre un isolant thermique basé sur l'aérogel, a été construite en interne. Des mesures de dose absorbée dans l'eau ont été faites dans des conditions référence dans un 6 MV 1000 MU / min faisceau de photons et ont été comparé à des valeurs dérivées avec TG-51. Le taux de dose moyenne mesurée dans l'eau était 95,7 ± 1,4 cGy/100 MU, comparé à une valeur attendue de 96,6 cGy/100 MU. Le facteur de conversion de dose en graphite à dose dans l'eau calculée avec le Monte Carlo était 1.099, tandis que les corrections pour la perte de chaleur varient entre 1,005 et 1,013. Les sources les plus importantes d'incertitude ont été la répétabilité (type A, 1,4%) et le calibrage de thermistance (de type B, 2,1%). La contribution de ces facteurs à l'incertitude globale devrait diminuer de façon significative à la mise en œuvre de la stabilisation thermique active fournie par un régulateur de température et de calibrage électrique directe, respectivement. Cette preuve de concept démontre la faisabilité de l'utilisation du GPC comme un dosimètre absolu de photon pratique en clinique et forme la base d'une version miniaturisée adaptée pour la dosimétrie de petit champ.

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Campbell, Steven Conner. « DETERMINATION OF ACOUSTIC RADIATION EFFICIENCY VIA PARTICLE VELOCITY SENSOR WITH APPLICATIONS ». UKnowledge, 2019. https://uknowledge.uky.edu/me_etds/133.

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Acoustic radiation efficiency is defined as the ratio of sound power radiated to the surface vibration power of a piston with equivalent surface area. It has been shown that the radiation efficiency is maximized and may exceed unity when the structural and acoustic wavelengths are approximately equal. The frequency at which this occurs is called the critical frequency and can be shifted with structural modifications. This has proven to be an effective way to reduce noise. The standard radiation efficiency measurement is comprised of an intensity scan for sound power measurement and accelerometer array for spatially averaged vibration determination. This method is difficult to apply to lightweight structures, complicated geometries, and when acoustic sources are in close proximity to one another. Recently, robust particle velocity sensors have been developed. Combined with a small microphone in the same instrument, particle velocity and sound pressure can be measured simultaneously and at the same location. This permits radiation efficiency to be measured using a non-contact approach with a single sensor. A suggested practice for measuring radiation efficiency has been developed and validated with several examples including two flat plates of different thickness, an oil pan, and components on a running small engine.

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Zhao, Hui, Brian Wang, Vikren Sarkar, Prema Rassiah-Szegedi, Y. Jessica Huang, Martin Szegedi, Long Huang, Victor Gonzalez et Bill Salter. « Comparison of surface matching and target matching for image-guided pelvic radiation therapy for both supine and prone patient positions ». MULTIMED INC, 2016. http://hdl.handle.net/10150/617402.

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We investigate the difference between surface matching and target matching for pelvic radiation image guidance. The uniqueness of our study is that all patients have multiple CT-on-rails (CTOR) scans to compare to corresponding AlignRT images. Ten patients receiving pelvic radiation were enrolled in this study. Two simulation CT scans were performed in supine and prone positions for each patient. Body surface contours were generated in treatment planning system and exported to AlignRT to serve as reference images. During treatment day, the patient was aligned to treatment isocenter with room lasers, and then scanned with both CTOR and AlignRT. Image-guidance shifts were calculated for both modalities by comparison to the simulation CT and the differences between them were analyzed for both supine and prone positions, respectively. These procedures were performed for each patient once per week for five weeks. The difference of patient displacement between AlignRT and CTOR was analyzed. For supine position, five patients had an average difference of displacement between AlignRT and CTOR along any direction (vertical, longitudinal, and lateral) greater than 0.5 cm, and one patient greater than 1 cm. Four patients had a maximum difference greater than 1 cm. For prone position, seven patients had an average difference greater than 0.5 cm, and three patients greater than 1 cm. Nine patients had a maximum difference greater than 1 cm. The difference of displacement between AlignRT and CTOR was greater for the prone position than for the supine position. For the patients studied here, surface matching does not appear to be an advisable image-guidance approach for pelvic radiation therapy for patients with either supine or prone position. There appears to be a potential for large alignment discrepancies (up to 2.25 cm) between surface matching and target matching.

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Cao, Da. « Étude expérimentale de la fluorescence et du transfert non-radiatif en champ proche de nanostructures métalliques ». Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066530/document.

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L’interaction lumière-matière dépend fortement de l’environnement de l’émetteur fluorescent. Il est gouverné par une quantité fondamentale en physique : la densité locale d’états électromagnétiques (LDOS), qui est proportionnelle au taux de désexcitation de l’émetteur fluorescent à l’endroit où il se trouve dans son environnement.La partie principale de ce travail de thèse a consisté en la réalisation d’études expérimentales spatialement résolues du taux de désexcitation et de l’intensité de fluorescence d’un nanoémetteur en champ proche d’une nanoantenne plasmonique. Ceci a été rendu possible grâce à l’utilisation d’un microscope de champ proche à sonde fluorescente récemment développé à l’Institut Langevin. L’amélioration des performances de ce dispositif apportée au cours de cette thèse, nous a permis de cartographier le taux de désexcitation radiatif et non-radiatif apparent en champ proche d’un milieu nanostructuré avec une résolution spatiale nanométrique.Par la suite, nous avons commencé à nous intéresser au transfert d’énergie non-radiatif entre deux molécules fluorescentes. Ce phénomène, connu sous le nom de FRET (Forster Resonance Energy Transfer), a lieu habituellement sur des distances de l’ordre de quelques dizaines de nanomètres. En utilisant comme vecteur pour le transfert d’énergie un plasmon se propageant à la surface d’un film d’or continu, nous avons démontré qu’il est possible d’étendre la portée du FRET sur des distances supérieures à un micromètre. Dans la suite de cette thèse, l’influence de l’environnement sur l’efficacité et la portée du FRET sera étudiée
Light-matter interaction strongly depends on the environment of the fluorescent emitter. It is governed by a fundamental physical quantity: the local density of electromagnetic states (LDOS), which is proportional to the decay rate of the fluorescent emitter in a given environment.The main part of this experimental thesis is devoted to the spatially resolved study of the decay rate and the fluorescence intensity of a nano-emitter in the near field of plasmonic nanoantennas. This study has been made possible by the use of a near field scanning fluorescence microscope recently developed at Institut Langevin. During this thesis we obtained a substantial improvement of the performances of this device. This allowed us to map the radiative and apparent non-radiative decay rates in the near field of a nanostructure with nanometer spatial resolution.Thereafter, we started to investigate the non-radiative energy transfer between two fluorescent molecules. This phenomenon, known as FRET (Förster Resonance Energy Transfer), usually takes place over distances of the order of several tens of nanometers. Using a plasmon propagating on the surface of a continuous gold film as a vehicle to transfer the energy between the two molecules, we have demonstrated that it is possible to extend the range of FRET on distances greater than one micron. The perspective after the end of this thesis, is the study of the influence of the environment on the efficiency and the range of FRET

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Pěnková, Jana. « Bezpečnost práce a ochrana zdraví při práci se zdroji ionizujícího záření ve zdravotnictví ». Master's thesis, Vysoká škola ekonomická v Praze, 2010. http://www.nusl.cz/ntk/nusl-74392.

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The aim of this diploma thesis is to analyse health and safety system in department of nuclear medicine in Kolín hospital and evaluate its compliance with czech legislation. The thesis is compsed of four chapters. Chapter One gives a general introduction to health and safety issues and describes most important aspect of general health and safety legislation. Chapter Two explains the basic terms of ionizing radiation and radioactivity and focuses mainly on radiation protection, which is closely linked to the health and safety area. Chapter Three defines the legislative and institutional framework of health and safety in the area of ionizing radiation. This chapter is a starting point for Chapter Four, which analyzes the health and safety system in department of nuclear medicine in Kolín hospital, compares it with legislation requirements and evaluates the compliance.

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Livres sur le sujet "Radiative proce"

Richer, Michael G. Neutral oxygen in planetary nebulae : A probe of radiative transfer. Toronto : University of Toronto, Dept. of Astronomy, 1989.

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Center, Goddard Space Flight, dir. Microwave anisotrophy probe, MAP. [Greenbelt, MD : NASA's Goddard Space Flight Center, 1997.

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United States. National Aeronautics and Space Administration. Map Project Office., dir. MAP, microwave anisotropy probe. Greenbelt, MD : MAP Project Office, 1997.

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Tadeusz, Rewaj, dir. Prace Instytutu Fizyki = : Reports of the Institute of Physics. Szczecin : Wydawn. Uczelniane Politechniki Szczecińskiej, 1988.

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United States. National Aeronautics and Space Administration., dir. Galileo net flux radiometer report 1997. [Tucson, Ariz.] : Arizona University, Dept. of Planetary Sciences, Lunar and Planetary Laboratory, 1997.

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V, Pepper Stephen, Sutter James K, American Institute of Aeronautics and Astronautics., NASA Glenn Research Center et Intersociety Energy Conversion Engineering Conference (35th : 2000 : Las Vegas, Nev.), dir. Organic materials ionizing radiation susceptibility for the Outer Planet/Solar Probe radioisotope power source. [Cleveland, Ohio] : National Aeronautics and Space Administration, Glenn Research Center, 2001.

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1924-, Ragent Boris, Swenson Byron L et Ames Research Center, dir. Reports of workshops on probe measurements of particles and radiation in the atmosphere of Titan. Moffett Field, Calif : National Aeronautics and Space Administration, Ames Research Center, 1990.

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Alfred, Bäuml, Institut für Strahlenhygiene des Bundesgesundheitsamtes (Germany) et World Health Organization, dir. Quality assurance in radiation therapy : Proce[e]dings of a workshop Dec.2-Dec.7, 1984 at Schloss Reisenburg. München : MMV Medizin, 1986.

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L, Johnson, et George C. Marshall Space Flight Center., dir. Inner magnetosphere imager (IMI) solar terrestrial probe class mission preliminary design study report. Marshall Space Flight Center, Ala : National Aeronautics and Space Administration, Marshall Space Flight Center, 1994.

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1941-, Alfano Robert R., Society of Photo-optical Instrumentation Engineers., Society of Vacuum Coaters et SPIE Symposium on Advances in Semiconductors and Superconductors : Physics Toward Device Applications (1990 : San Diego, Calif.), dir. Ultrafast laser probe phenomena in bulk and microstructure semiconductors III : 18-19 March 1990, San Diego, California. Bellingham, Wash., USA : SPIE, 1990.

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Chapitres de livres sur le sujet "Radiative proce"

Baillion, Marc, Gilles Taquin et Jacques Soler. « Huygens Probe Radiative Environment ». Dans Shock Waves @ Marseille II, 339–46. Berlin, Heidelberg : Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-78832-1_56.

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Moll, I., et E. G. Jung. « Cancer Prone Genophotodermatoses ». Dans Skin Cancer and UV Radiation, 582–88. Berlin, Heidelberg : Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-60771-4_71.

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Lacasta, Carlos, Neal H. Clinthorne et Gabriela Llosá. « The PET Magnifier Probe ». Dans Radiation Physics for Nuclear Medicine, 195–209. Berlin, Heidelberg : Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11327-7_11.

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Sweet, Robert M. « Synchrotron Radiation : A Probe for Biomedical Research ». Dans Biotechnology and the Human Genome, 79–92. Boston, MA : Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-5547-2_9.

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Mattana, Richard, Nicolas Locatelli et Vincent Cros. « Spintronics and Synchrotron Radiation ». Dans Springer Proceedings in Physics, 131–63. Cham : Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-64623-3_5.

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AbstractHaving access to the electronic and magnetic properties of spintronic systems is of crucial importance in view of their future technological developments. Our purpose in this chapter is to elaborate how a variety of synchrotron radiation-based measurements provides powerful and often unique techniques to probe them. We first introduce general concepts in spintronics and present some of the important scientific advances achieved in the last 30 years. Then we will describe some of the key investigations using synchrotron radiation concerning voltage control of magnetism, spin-charge conversion and current-driven magnetization dynamics.

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Baraldi, Alessandro. « High-Energy Resolution Core Level Photoelectron Spectroscopy and Diffraction : Powerful Tools to Probe Physical and Chemical Properties of Solid Surfaces ». Dans Synchrotron Radiation, 519–38. Berlin, Heidelberg : Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-55315-8_19.

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Herdeiro, Carlos, Marco O. P. Sampaio et Mengjie Wang. « Hawking Radiation for a Proca Field : Numerical Strategy ». Dans Progress in Mathematical Relativity, Gravitation and Cosmology, 283–87. Berlin, Heidelberg : Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-40157-2_39.

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Paterson, M. C., M. V. Middlestadt, M. Weinfeld, R. Mirzayans et N. E. Gentner. « Human Cancer-Prone Disorders, Abnormal Carcinogen Response, and Defective DNA Metabolism ». Dans Radiation Carcinogenesis and DNA Alterations, 471–98. Boston, MA : Springer US, 1986. http://dx.doi.org/10.1007/978-1-4684-5269-3_40.

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Khabibullin, Timur, Andrey Starikovskiy et Anastasia Tolstaya. « Gamma-Probe for Locating the Source of Ionizing Radiation ». Dans Advances in Intelligent Systems and Computing, 257–69. Cham : Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-63940-6_37.

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Bharti, Pramod Kumar, et Joycee Mekie. « RTQCC-14T : Radiation Tolerant Quadruple Cross Coupled Robust SRAM Design for Radiation Prone Environments ». Dans Communications in Computer and Information Science, 486–98. Cham : Springer Nature Switzerland, 2022. http://dx.doi.org/10.1007/978-3-031-21514-8_40.

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Actes de conférences sur le sujet "Radiative proce"

Terziyski, Atanas, Stoyan Tenev, Vedrin Jeliazkov et Nikola Petrov. « UV Radiation Monitoring Probe ». Dans 2022 22nd International Symposium on Electrical Apparatus and Technologies (SIELA). IEEE, 2022. http://dx.doi.org/10.1109/siela54794.2022.9845750.

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Savajano, Romain, Daniel F. Potter et Pe´ne´lope Leyland. « Numerical Simulations of Heat Fluxes for Atmospheric Re-Entries ». Dans ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44234.

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During atmospheric (re-)entries, planetary probes encounter huge heat fluxes due to their significant speed (up to 13 km/s for an Earth re-entry). The total heat flux received by the probe can be divided into two main components: a convective one (coming from the conduction and diffusion phenomena occuring in the shock layer) and a radiative one (due to the radiation of certain species). Numerical simulations have been performed for both Titan (Huygens mission) and Earth (Fire II mission) entries. The main parameters influencing the results are the atmosphere composition, the chemical reaction scheme, the transport model and the radiative model. The results obtained gave us information on the flowfield (temperature, pressure, species densities...) and values for the heat fluxes on the wall that are useful for experimental or flight data comparison.

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Girard, Eric, Richard Kahn, Anne-Claire Dhaussy, Isabella Ascone, Mohamed Mezouar et Roger Fourme. « X-ray Crystallography at High Pressure to Probe Conformational Fluctuations in Biological Macromolecules ». Dans SYNCHROTRON RADIATION INSTRUMENTATION : Ninth International Conference on Synchrotron Radiation Instrumentation. AIP, 2007. http://dx.doi.org/10.1063/1.2436439.

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Suzuki, Motohiro, Masafumi Takagaki, Yuji Kondo, Naomi Kawamura, Jun Ariake, Takashi Chiba, Hidekazu Mimura et Tetsuya Ishikawa. « Element-Specific Hard X-ray Micro-Magnetometry to Probe Anisotropy in Patterned Magnetic Films ». Dans SYNCHROTRON RADIATION INSTRUMENTATION : Ninth International Conference on Synchrotron Radiation Instrumentation. AIP, 2007. http://dx.doi.org/10.1063/1.2436396.

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Heaney, James B., Charles C. He, Wanda C. Peters, Robert R. Gorman, Samuel Dummer, Cliffton E. Jackson et J. T. VanSant. « Thermal radiative properties of the microwave anisotropy probe telescope ». Dans International Symposium on Optical Science and Technology, sous la direction de Alson E. Hatheway. SPIE, 2001. http://dx.doi.org/10.1117/12.447293.

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Blagojevic, Bojana, Magdalena Djordjevic et Marko Djordjevic. « Hard probe radiative energy loss beyond soft-gluon approximation ». Dans International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions. Trieste, Italy : Sissa Medialab, 2019. http://dx.doi.org/10.22323/1.345.0191.

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Ingold, G., P. Beaud, S. Johnson, A. Streun, T. Schmidt, R. Abela, A. Al-Adwan et al. « Sub-Picosecond Tunable Hard X-Ray Undulator Source for Laser/X-Ray Pump-Probe Experiments ». Dans SYNCHROTRON RADIATION INSTRUMENTATION : Ninth International Conference on Synchrotron Radiation Instrumentation. AIP, 2007. http://dx.doi.org/10.1063/1.2436278.

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Pham, Chi, Horace Malcom, Richard Maurer, David Roth et Kim Strohbehn. « LEON3FT Proton SEE Test Results for the Solar Probe Plus Program ». Dans 2011 IEEE Radiation Effects Data Workshop. IEEE, 2011. http://dx.doi.org/10.1109/redw.2010.6062535.

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Sharma, Arti, Anjali Joshi, Gaurav Verma et Amrit Pal Toor. « Surfactant assisted liquid phase exfoliation of graphene via probe tip sonication ». Dans ADVANCED MATERIALS AND RADIATION PHYSICS (AMRP-2015) : 4th National Conference on Advanced Materials and Radiation Physics. AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4929263.

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Olivier, Dhez, Rodrigues Mario, Comin Fabio, Felici Roberto et Chevrier Joel. « X-Tip : a New Tool for Nanoscience or How to Combine X-Ray Spectroscopies to Local Probe Analysis ». Dans SYNCHROTRON RADIATION INSTRUMENTATION : Ninth International Conference on Synchrotron Radiation Instrumentation. AIP, 2007. http://dx.doi.org/10.1063/1.2436324.

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Rapports d'organisations sur le sujet "Radiative proce"

Vernon, S., et M. Lowry. Ultrafast Radiation Detection by Modulation of an Optical Probe Beam. Office of Scientific and Technical Information (OSTI), février 2006. http://dx.doi.org/10.2172/877884.

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Reich, F. R. Summary of raman cone penetrometer probe waste tank radiation and chemical environment test. Office of Scientific and Technical Information (OSTI), septembre 1996. http://dx.doi.org/10.2172/326401.

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Sievers, A. J., et M. Tigner. Investigation of the coherent synchrotron radiation spectrum as a probe of charge dynamics. Office of Scientific and Technical Information (OSTI), février 1993. http://dx.doi.org/10.2172/6702753.

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Colborn, J. A design procedure for a slotted waveguide with probe-fed slots radiating into plasma. Office of Scientific and Technical Information (OSTI), novembre 1989. http://dx.doi.org/10.2172/5349040.

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Sievers, A. J., et M. Tigner. Investigation of the coherent synchrotron radiation spectrum as a probe of charge dynamics. Progress report. Office of Scientific and Technical Information (OSTI), février 1993. http://dx.doi.org/10.2172/10133775.

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Sievers, A. J., et M. Tigner. Investigation of the coherent synchrotron radiation spectrum as a probe of charge dynamics. Progress performance report. Office of Scientific and Technical Information (OSTI), avril 1994. http://dx.doi.org/10.2172/10166861.

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Blank, David Andrew. Molecular beam studies of unimolecular and bimolecular chemical reaction dynamics using VUV synchrotron radiation as a product probe. Office of Scientific and Technical Information (OSTI), août 1997. http://dx.doi.org/10.2172/589199.

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Rubin, D. L., et A. J. Sievers. Investigation of the coherent radiation spectrum as a probe of charge dynamics. Final technical report, July 15, 1992--September 14, 1997. Office of Scientific and Technical Information (OSTI), janvier 1998. http://dx.doi.org/10.2172/565381.

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Bullock, Christine, Jeffrey J. Whicker, Mary Jo Chastenet et Michael Mcnaughton. Measurements of alpha and beta radiation from uncontaminated surfaces of common building materials using the RadEye SX with Ludlum 43-93 Probe. Office of Scientific and Technical Information (OSTI), octobre 2018. http://dx.doi.org/10.2172/1477595.

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Joseph Marion Tuggle IV. Radiative B Meson Decay as a Probe of Physics Beyond the Standard Model : Time-Dependent CP Violation in B⁰ → K⁰_S π⁰ γ and the B → Φ K γ Branching Fraction. Office of Scientific and Technical Information (OSTI), janvier 2009. http://dx.doi.org/10.2172/946450.

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