Relevant bibliographies by topics / Nucleon and gamma ray emission

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Nucleon and gamma ray emission'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 February 2022

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Journal articles on the topic "Nucleon and gamma ray emission"

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Vilmer, N. "Solar Hard X-Ray and Gamma-Ray Observations from GRANAT." International Astronomical Union Colloquium 142 (1994): 611–21. http://dx.doi.org/10.1017/s0252921100077885.

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AbstractHard X-rays and gamma-rays are the most direct signature of the energetic electrons and ions which are accelerated during solar flares. Since the beginning of 1990 the PHEBUS instrument and the SIGMA anticoincidence shield aboard GRANAT have provided hard X-ray and gamma-ray observations of solar bursts in the energy range 0.075-124 and 0.200-15 MeV, respectively. After a brief description of the experiments, we present some results obtained on solar bursts recorded in 1990 and 1991 June. Special emphasis is given to the results related with particle acceleration during solar flares.The first part of the review is devoted to the constraints obtained on the electron acceleration timescale through the analysis of the temporal characteristics of the bursts. Combined studies of hard X-ray and gamma-ray emissions from PHEBUS and radio emissions from the Nançay Multifrequency Radioheliograph are used to infer constraints on the coronal magnetic topology involved in flares. The characteristics (location, spectrum) of the radio-emitting sources are found to vary within a flare from one hard X-ray peak to the other. Hard X-ray and gamma-ray burst onsets and rapid increases of the > 10 MeV emission are coincident with changes in the associated radio emission pattern. These results will be discussed in the context of the flare energy release.The second part of the paper concerns the heliocentric angle distribution of > 10 MeV events and presents more detailed observations of some of the largest flares in the gamma-ray line and the high-energy domains produced by ultrarelativistic electrons and > 100 MeV nucleon−1 ions. The PHEBUS observations of the gamma-ray line flare of 11 June 1991 have been used to deduce the hardness of the accelerated ion spectrum. The link between the main part of the flare and the late long-lasting >50 MeV emission detected by EGRET/COMPTON is discussed. Finally some observations of the large 1990 May 24 flare which produced a large neutron event at ground level are presented.Subject headings: acceleration of particles — Sun: flares — Sun: radio radiation — Sun: X-rays, gamma rays
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SINGH, N. L., S. MUKHERJEE, and M. S. GADKARI. "EXCITATION FUNCTIONS OF ALPHA INDUCED REACTIONS ON NATURAL NICKEL UP TO 50 MeV." International Journal of Modern Physics E 14, no. 04 (June 2005): 611–29. http://dx.doi.org/10.1142/s021830130500348x.

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Excitation functions have been measured for alpha-particle induced reactions on natural nickel leading to the production of 62 Zn , 61 Cu , 56,57 Ni and 56,58 Co radioisotopes up to 50 MeV by the activation method and gamma-ray spectrometry. Most of these radioisotopes are produced by one or two alpha-particle emissions and a few nucleon emissions. The excitation functions were compared with semi-classical models codes, like ALICE/90, which includes a shell corrected level density formulation and the COMPLET, which takes into account angular momentum removal effects. In the case of multi-nucleon emission channels, ALICE/90 gives fairly good agreement. The COMPLET code on the other hand, explains the α-particle emission channels in a more convincing manner.
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Fukazawa, Yasushi. "X-ray probing of NGC 1275 nuclear region with Hitomi, Swift, and Suzaku." Proceedings of the International Astronomical Union 14, S342 (May 2018): 118–21. http://dx.doi.org/10.1017/s1743921318007366.

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AbstractNGC 1275 has been known as a ppint-like X-ray source with a continuum and a Fe-K line. Unlike radio and GeV/TeV gamma-ray emissions, origin of X-ray emission is not yet understood; is it a jet emission like blazars or an accretion corona emission like Seyfert galaxies. X-ray emission is important to determine the SED of jet emission to constrain jet parameters and also understand the relation between accretion and jet. Here we report a recent X-ray probing of NGC 1275 nuclear region with Hitomi/SXS, Swift/XRT, and Suzaku/XIS. Hitomi/SXS gave the first opportunity to measure a Fe-K line of AGNs with several eV resolution. The line center is consistent with the neutral iron emission, and the width is constrained to be 500-1600 km/s (FWHM). This ruled out the origin of broad line region and inner accretion disk. A low-covering-fraction molecular torus or a rotating molecular disk around pc scales, illuminated by accretion corona emission, is suggested as a possible origin. For the continuum emission, Suzaku/XIS monitor observations revealed that the X-ray flux has gradually increased as the GeV gamma-ray flux. Swift/XRT showed a several-days flux increase, associated with the GeV gamma-ray flare. These results on the continuum emission suggests a contribution of jet emission to the X-ray emission. Based on the combined results of Fe-K line and continuum, we discuss some scenarios for X-ray emitting region.
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Murphy, Ronald J., Gerald H. Share, J. Eric Grove, W. Neil Johnson, James D. Kurfess, William R. Purcell, K. McNaron‐Brown, and Reuven Ramaty. "Limits on Nuclear Gamma‐Ray Emission from Orion." Astrophysical Journal 473, no. 2 (December 20, 1996): 990–97. http://dx.doi.org/10.1086/178209.

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Ramaty, R., and N. Mandzhavidze. "Gamma-rays from Solar Flares." Symposium - International Astronomical Union 195 (2000): 123–32. http://dx.doi.org/10.1017/s0074180900162850.

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Gamma-ray emission is the most direct diagnostic of energetic ions and relativistic electrons in solar flares. Analysis of solar flare gamma-ray data has shown: (i) ion acceleration is a major consequence of flare energy release, as the total flare energy in accelerated particles appears to be equipartitioned between ≳ 1 MeV/nucleon ions and ≳ 20 keV electrons, and amounts to an important fraction of the total energy release; (ii) there are flares for which over 50% of the energy is in a particles and heavier ions; (iii) in both impulsive and gradual flares, the particles that interact at the Sun and produce gamma rays are essentially always accelerated by the same mechanism that operates in impulsive flares, probably stochastic acceleration through gyroresonant wave particle interaction; and (iv) gamma-ray spectroscopy can provide new information on solar abundances, for example the site of the FIP-bias onset and the photospheric 3He abundance. We propose a new technique for the investigation of mass motion and mixing in the solar atmosphere: the observations of gamma-ray lines from long-term radioactivity produced by flare accelerated particles.
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Miyahara, Hiroshi, Keiji Katoh, Keiichi Ikeda, Kazuo Fujiki, Ichirou Nishinaka, Kazuaki Tsukada, Yuichiro Nagame, Masato Asai, Sin-ichi Ichikawa, and Hiromitsu Haba. "Gamma-ray emission probability measurement of 149Eu." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 533, no. 3 (November 2004): 404–8. http://dx.doi.org/10.1016/j.nima.2004.06.171.

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Kim, J. B., J. Morel, M. Etcheverry, N. Coursol, D. Trubert, O. Constantinescu, S. A. Karamian, Yu Ts Oganessian, Ch Briancon, and M. Hussonnois. "Precise measurement of gamma-ray energies and gamma-ray emission probabilities in178m2Hf decay." Journal of Radioanalytical and Nuclear Chemistry 215, no. 2 (January 1997): 229–33. http://dx.doi.org/10.1007/bf02034469.

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Davydov, A. V. "Once again on the duration of nuclear gamma-ray-emission and gamma-ray-absorption processes." Physics of Atomic Nuclei 74, no. 1 (January 2011): 11–12. http://dx.doi.org/10.1134/s1063778811010030.

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Galper, A. M., S. I. Suchkov, N. P. Topchiev, I. V. Arkhangelskaja, A. I. Arkhangelskiy, A. V. Bakaldin, Yu V. Gusakov, et al. "Precision Measurements of High-Energy Cosmic Gamma-Ray Emission with the GAMMA-400 Gamma-Ray Telescope." Physics of Atomic Nuclei 80, no. 6 (November 2017): 1141–45. http://dx.doi.org/10.1134/s1063778817060096.

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Martin, P., G. Dubus, P. Jean, V. Tatischeff, and C. Dosne. "Gamma-ray emission from internal shocks in novae." Astronomy & Astrophysics 612 (April 2018): A38. http://dx.doi.org/10.1051/0004-6361/201731692.

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Context. Gamma-ray emission at energies ≥100 MeV has been detected from nine novae using the Fermi Large Area Telescope (LAT), and can be explained by particle acceleration at shocks in these systems. Eight out of these nine objects are classical novae in which interaction of the ejecta with a tenuous circumbinary material is not expected to generate detectable gamma-ray emission. Aim. We examine whether particle acceleration at internal shocks can account for the gamma-ray emission from these novae. The shocks result from the interaction of a fast wind radiatively-driven by nuclear burning on the white dwarf with material ejected in the initial runaway stage of the nova outburst. Methods. We present a one-dimensional model for the dynamics of a forward and reverse shock system in a nova ejecta, and for the associated time-dependent particle acceleration and high-energy gamma-ray emission. Non-thermal proton and electron spectra are calculated by solving a time-dependent transport equation for particle injection, acceleration, losses, and escape from the shock region. The predicted emission is compared to LAT observations of V407 Cyg, V1324 Sco, V959 Mon, V339 Del, V1369 Cen, and V5668 Sgr. Results. The ≥100 MeV gamma-ray emission arises predominantly from particles accelerated up to ~100 GeV at the reverse shock and undergoing hadronic interactions in the dense cooling layer downstream of the shock. The emission rises within days after the onset of the wind, quickly reaches a maximum, and its subsequent decrease reflects mostly the time evolution of the wind properties. Comparison to gamma-ray data points to a typical scenario where an ejecta of mass 10−5–10−4 M⊙ expands in a homologous way with a maximum velocity of 1000–2000 km s−1, followed within a day by a wind with a velocity <2000 km s−1 and a mass-loss rate of 10−4–10−3 M⊙ yr−1 declining over a time scale of a few days. Because of the large uncertainties in the measurements, many parameters of the problem are degenerate and/or poorly constrained except for the wind velocity, the relatively low values of which result in the majority of best-fit models having gamma-ray spectra with a high-energy turnover below ~10 GeV. Our typical model is able to account for the main features in the observations of the recent gamma-ray nova ASASSN-16ma. Conclusions. The internal shock model can account for the gamma-ray emission of the novae detected by Fermi LAT. Gamma-ray observations hold potential for probing the mechanism of mass ejection in novae, but should be combined to diagnostics of the thermal emission at lower energies to be more constraining.
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Dissertations / Theses on the topic "Nucleon and gamma ray emission"

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Chadwick, Mark Benjamin. "The theory of pre-equilibrium processes in nuclear reactions." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.257655.

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Mak, Wai-ying, and 麥偉瑩. "Very high energy gamma-ray emission from active galactic nuclei." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31221464.

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Mak, Wai-ying. "Very high energy gamma-ray emission from active galactic nuclei /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20567492.

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Mountford, David James. "Investigations of nuclear reactions relevant to stellar γ-ray emission." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8238.

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The detection of γ-rays from explosive astrophysical scenarios such as novae provides an excellent opportunity for the study of on-going nucleosynthesis in the Universe. Within this context, this work has addressed an uncertainty in the destruction rate of the 18F nucleus, thought to be the primary source of 511 keV γ-rays from novae. A direct measurement of the 18F(p,α )15O cross section has provided the opportunity to extract resonance parameters through the R-Matrix formalism. The inferred parameters of populated states in 19Ne include the observation of a broad 1/2+ state, consistent with a recent theoretical prediction, which will have a significant impact on the rate of destruction of this γ-ray producing radioisotope. The 18O(p,α )15N reaction follows similar nuclear and kinematic processes and is expected to occur in the hydrogen burning layers of AGB stars. Resonance widths have been extracted from a direct measurement in the region around a poorly constrained broad state close to the Gamow window. This has produced a new parameter set for future reference and provides new information on the reaction rate. The complex R-Matrix formalism used in these analyses is a crucial tool in the study of nuclear astrophysics reactions, and many codes have been written to implement the complex mathematics. This thesis presents a comparison of two publicly available codes from the JINA collaboration and a code used extensively by the University of Edinburgh. For this, the recent results of the 18F destruction reaction, presented here, have been used. A minor error was found within one of the codes, and corrected. The final parameters extracted, and the resulting cross sections calculations, are shown to be consistent between the three codes. A further γ-ray line of interest at 1.809 MeV, characteristic of 26Al decay, has been observed throughout the interstellar medium. If, however, this isotope is formed in a known isomeric state, its decay bypasses the emission of this γ-ray, thus complicating the interpretation of observed γ-ray fluxes. To this end, an experiment has been carried out, providing proof of principle of a direct measurement of the 26mAl(p,γ)27Si reaction. The calculation of the isomeric intensity is presented here.
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Kokalova, Tzanka T. "Gamma-ray spectroscopy of deformed states in light nuclei and cluster emission." [S.l.] : [s.n.], 2004. http://www.diss.fu-berlin.de/2004/21/index.html.

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Wong, Yuen-lam. "Transient radiation emission from astrophysical jets." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/hkuto/record/B39378512.

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Wong, Yuen-lam, and 黃菀林. "Transient radiation emission from astrophysical jets." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B39378512.

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Nigro, Cosimo. "Study of Persistent and Flaring Gamma-Ray Emission from Active Galactic Nuclei with the MAGIC Telescopes and Prospects for Future Open Data Formats in Gamma-Ray Astronomy." Doctoral thesis, Humboldt-Universität zu Berlin, 2019. http://dx.doi.org/10.18452/20582.

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Angetrieben durch die Akkretion von Materie in ein super massives Schwarzes Loch in ihrem Zentrum, stellen aktive Galaxien die stärksten und beständigsten Strahlungsquellen im Universum dar. Ihre elektromagnetische Emission kann sich bis in den Gammastrahlenbereich ausbreiten. Das Ziel dieser Arbeit ist, diese Mechanismen und die Orte jenseits der hoch energetischen Emission zu charakterisieren. Dafür werden die Observationen von zwei Aktiven Galaxien im Bereich von hunderten von GeV verwendet, welche mit den Cherenkov Teleskopen MAGIC aufgenommen wurden. Die physikalische Interpretation wird durch Beobachtungen mit dem Fermi Gamma-ray Space Teleskop und durch Multiwellenlängendaten unterstützt. Es werden zwei Aktive Galaxien mit Jet untersucht: PKS 1510-089 und NGC 1275. Die MAGIC Teleskope, welche PKS 1510-089 seit 2012 immer wieder beobachten, detektieren eine signifikante Emission über dutzende von Observationsstunden, was auf schwache aber kontinuierliche Gammastrahlung aus dieser Quelle hinweist. NGC 1275 zeigte in der Periode von September 2016 bis Februar 2017 einen großen Ausbruch im Gammerstrahlenbereich: MAGIC zeichnete eine Variabilität in der Größenordnung von wenigen Stunden und die erstmalige Emission von TeV Photonen. Aus beiden untersuchten Quellen ist ersichtlich, dass die Kombination von Daten aus verschiedenen Instrumenten die physische Diskussion entscheidend beeinflusst. Der Übergang zu zugänglichen und interoperablen Daten wird zu einem zwingenden Thema für Gammastrahlenastronomen, und diese Arbeit stellt das technische Bestreben dar, standardisierte hochrangige Daten für Gammastrahleninstrumente zu erzeugen. Ein Beispiel für eine zukünftige Analyse, die einheitliche High-Level-Daten von einem Gammastrahlensatelliten und vier Cherenkov-Teleskopen kombiniert, wird vorgestellt. Der neue Ansatz, der vorgeschlagen wird, führt die Datenanalyse durch und verbreitet die Ergebnisse, wobei nur Open-Source-Ressourcen verwendet werden.
Powered by the accretion of matter to a supermassive black hole, active galactic nuclei constitute the most powerful and persistent sources of radiation in the universe, with emission extending in the gamma-ray domain. The aim of this work is to characterise the mechanisms and sites beyond this highly-energetic radiation employing observations of two galaxies at hundreds of GeV, conducted with the MAGIC imaging Cherenkov telescopes. The physical interpretation is supported with observations by the Fermi Gamma-ray Space Telescope and with multi-wavelength data. Two peculiar jetted galaxies are studied: PKS 1510-089 and NGC 1275. The first source, monitored by MAGIC since 2012, presents a significant emission over tens of observation hours, in what appears to be a low but persistent gamma-ray state. The second source has instead shown, in the period between September 2016 and February 2017, a major outburst in its gamma-ray activity with variability of the order of few hours and emission of TeV photons. The broad band emission of jetted galaxies is commonly modelled with the radiative processes of a population of electrons accelerated in the jet. While PKS 1510-089 conforms to this scenario, modelling the gamma-ray outburst of NGC 1275 requires placing the acceleration and radiation of electrons close to the event horizon of the black hole. From both the sources studied it is evident that the combination of data from different instruments critically drives the physical discussuion. Moving towards accessible and interoperable data becomes a compelling issue for gamma-ray astronomers and this thesis presents the technical endeavour to produce standardised high-level data for gamma-ray instruments. An example of a future analysis combining uniformed high-level data from a gamma-ray satellite and four Cherenkov telescopes is presented. The novel approach proposed performs the data analysis and disseminates the results making use only of open-source assets.
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Dhani, Anwar. "Gamma ray emission tomography and angular correlation measurements to study the distribution and binding site of selenium." Thesis, University of Surrey, 1989. http://epubs.surrey.ac.uk/844497/.

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The distribution of 75Se in tissue equivalent materials was investigated employing Gamma ray Emission Tomography with a rectilinear scanner utilizing NaI(Tl) and BGO detectors. The reconstructed images, using Filtered Back Projection and Iterative techniques were presented in 2D colour and 3D representations. Using a lead collimator of aperture 1.5x20 mm and 70 length, the distribution of selenium with variation of volume and concentration was examined and clearly seen. Several corrections such as background, scattering, attenuation compensation and X-ray characteristic suppression, were performed to improve the quality of the images which was evaluated in terms of the fidelity factor. The possibility of quantifying an image was considered with regard to spatial resolution and least detectable concentration. The spatial resolution was measured using two small vials containing the same concentration of selenium, the value obtained was the same as the width of the collimator aperture. The value of the least detectable concentration of selenium however, was difficult to find, due to the many ambiguous factors involved. The binding site of selenium which is based on quadrupole interaction with the surrounding electric field, was investigated employing Perturbed Angular Correlation (PAC) experiments using NaI(Tl) and BaF2 detectors. Using NaI(Tl) detectors, it was difficult to observe the perturbation, due to the poor time resolution. The BaF2 detector according to the literatures has a shorter light emission decay time constant (0.6 ns), suggested that a better time resolution than that found with the NaI(Tl) detectors could be obtained. A Perturbed Angular Correlation experiment employing BaF2 detectors and a fast-slow coincidence system was set up. The time differential PAC of selenium in solution showed an unperturbed angular correlation pattern. The main problem is the very short half life of the intermediate state of 75Se (0.3 ns), making it difficult to observe the perturbation effect. The time resolution of the system (5.4 ns) will need to be improved by an order of magnitude or more for the investigations to continue.
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Nigro, Cosimo [Verfasser], Elisa [Gutachter] Bernardini, Gernot [Gutachter] Maier, and Alberto [Gutachter] Franceschini. "Study of Persistent and Flaring Gamma-Ray Emission from Active Galactic Nuclei with the MAGIC Telescopes and Prospects for Future Open Data Formats in Gamma-Ray Astronomy / Cosimo Nigro ; Gutachter: Elisa Bernardini, Gernot Maier, Alberto Franceschini." Berlin : Humboldt-Universität zu Berlin, 2019. http://d-nb.info/1197611347/34.

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Books on the topic "Nucleon and gamma ray emission"

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Katz, Jonathan I. Radio optical emission, spectral shapes and breaks in GRB. [Washington, DC: National Aeronautics and Space Administration, 1994.

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Katz, Jonathan I. Radio and optical emission, spectral shapes and breaks in GRB. [Washington, DC: National Aeronautics and Space Administration, 1994.

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Quinn, John Joseph. The discovery and properties of the TeV gamma-ray emission from Markarian 501. Dublin: University College Dublin, 1997.

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service), SpringerLink (Online, ed. Cosmic Ray Diffusion in the Galaxy and Diffuse Gamma Emission. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012.

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Gaggero, Daniele. Cosmic Ray Diffusion in the Galaxy and Diffuse Gamma Emission. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29949-0.

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Lakshminarayana, Yenumula. Preliminary computer simulation and experimental results for gamma ray emission computed tomography imaging for industrial applications. Mumbai: Scientific Information Resource Division, Bhabha Atomic Research Centre, 2012.

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United States. National Aeronautics and Space Administration., ed. Final report: Na-22 decay gamma rays from classical novae. Chicago, IL: Dept. of Astronomy and Astrophysics, Univ. of Chicago, 1994.

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United States. National Aeronautics and Space Administration., ed. Final report: Na-22 decay gamma rays from classical novae. Chicago, IL: Dept. of Astronomy and Astrophysics, Univ. of Chicago, 1994.

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Final report: Na-22 decay gamma rays from classical novae. Chicago, IL: Dept. of Astronomy and Astrophysics, Univ. of Chicago, 1994.

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A snapshot of the continuous emission of the active galactic nucleus in NGC 3783 from gamma-ray to radio wavelengths. [Washington, DC: National Aeronautics and Space Administration, 1995.

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Book chapters on the topic "Nucleon and gamma ray emission"

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Schlickeiser, Reinhard. "Gamma-Rays from Active Galactic Nuclei: Emission Processes and Particle Acceleration." In TeV Gamma-Ray Astrophysics, 299–315. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0171-1_22.

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Gaggero, Daniele. "Propagation of CR Nuclei: Our Results." In Cosmic Ray Diffusion in the Galaxy and Diffuse Gamma Emission, 35–57. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29949-0_4.

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Michelson, Peter F. "Gamma-Ray Emission from Extragalactic Radio Sources: Egret Observations of Active Galactic Nuclei." In Extragalactic Radio Sources, 277–80. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0295-4_101.

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Montagnani, Giovanni Ludovico. "Development of a 3” LaBr3 SiPM-Based Detection Module for High Resolution Gamma Ray Spectroscopy and Imaging." In Special Topics in Information Technology, 77–82. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-62476-7_7.

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AbstractGamma radiation detection finds many applications in different fields, including astrophysics, nuclear physics and medical diagnostics. Nowadays large Lanthanum Bromide crystals coupled to Photomultiplier Tubes (PMTs) represent the state of the art for gamma detection modules, in particular for spectroscopic measurements. Nevertheless, there is an interest in substituting photomultiplier tubes with solid state photodetectors like Silicon Photomultipliers (SiPMs), owing to the latter’s significant advantages. These include insensitivity to magnetic fields, low bias voltage, compactness, fast response and mechanical robustness. The aim of this thesis work, which was carried out within the context of the GAMMA project supported by IstitutoNazionale di FisicaNucleare (INFN), is the design, development and experimental characterization of a -ray spectrometer based on large Lanthanum Bromide scintillator crystals coupled with Silicon Photomultipliers. This detector specifications are compliant with nuclear physics experiments with energies ranging from 100 keV to 20 MeV, characterized by state-of-the-art energy resolution and imaging capability, in a compact, modular and robust structure. In order to perform the readout of large scintillator crystals, a matrix of 144 Silicon Photomultipliers was designed using NUV-HD SiPMs from Fondazione Bruno Kessler (FBK). These were chosen due to their high Photon Detection Efficiency in correspondence with the peak emission wavelength of the crystal, the high cell density and low Dark Count Rate.
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Spyrou, N. M., W. J. Altaf, B. S. Gill, C. Jeynes, G. Nicolaou, R. Pietra, E. Sabbioni, and M. Surian. "Fluorine Concentrations in Bone Biopsy Samples Determined by Proton-Induced Gamma-Ray Emission and Cyclic Neutron Activation." In Nuclear Analytical Methods in the Life Sciences, 161–68. Totowa, NJ: Humana Press, 1990. http://dx.doi.org/10.1007/978-1-4612-0473-2_18.

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Fender, Rob, and Tom Maccarone. "High Energy Emission from Microquasars." In Cosmic Gamma-Ray Sources, 205–23. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2256-2_9.

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Romero, Gustavo E. "Gamma-Ray Emission from Supernova Remnants." In Cosmic Gamma-Ray Sources, 127–47. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2256-2_6.

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Perley, Daniel A., Yuu Niino, Nial R. Tanvir, Susanna D. Vergani, and Johan P. U. Fynbo. "Long-Duration Gamma-Ray Burst Host Galaxies in Emission and Absorption." In Gamma-Ray Bursts, 113–44. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-024-1279-6_5.

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Rauw, Gregor. "Non-Thermal Emission from Early-Type Binaries." In Cosmic Gamma-Ray Sources, 105–25. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2256-2_5.

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Cheng, K. S. "Theories of Gamma-Ray Emission from Pulsars." In Cosmic Gamma-Ray Sources, 169–203. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2256-2_8.

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Conference papers on the topic "Nucleon and gamma ray emission"

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Schuster, Claudia. "Neutrino-emission from active galactic nuclei as a diagnostic tool." In GAMMA 2001: Gamma-Ray Astrophysics 2001. AIP, 2001. http://dx.doi.org/10.1063/1.1419431.

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Ding, K. Y., K. S. Cheng, and K. N. Yu. "X-ray and gamma-ray emission from active galactic nuclei." In COMPTON GAMMA-RAY OBSERVATORY. AIP, 1993. http://dx.doi.org/10.1063/1.44285.

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Heinrich, O., G. Shaviv, and R. Wehrse. "Gamma-ray—emission from star—accretion disk collisions in active galactic nuclei." In COMPTON GAMMA-RAY OBSERVATORY. AIP, 1993. http://dx.doi.org/10.1063/1.44287.

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Mészáros, P. "High Energy Emission from Gamma Ray Bursts." In PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei. AIP, 2006. http://dx.doi.org/10.1063/1.2220441.

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Cassé, Michel, Elisabeth Vangioni-Flam, and Sean T. Scully. "The gamma-ray line emission of Orion." In TOURS SYMPOSIUM ON NUCLEAR PHYSICS III. ASCE, 1998. http://dx.doi.org/10.1063/1.55196.

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Williams, David A. "Results from Milagrito on TeV emission by active Galactic nuclei." In GeV-TeV gamma ray astrophysics workshop. AIP, 2000. http://dx.doi.org/10.1063/1.1291359.

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Fichtel, C. E., D. L. Bertsch, B. L. Dingus, R. C. Hartman, S. D. Hunter, P. W. Kwok, J. R. Mattox, et al. "High energy gamma-ray emission from active galactic nuclei observed by the energetic gamma-ray experiment telescope (EGRET)." In COMPTON GAMMA-RAY OBSERVATORY. AIP, 1993. http://dx.doi.org/10.1063/1.44319.

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KRUPA, L., G. N. KNIAJEVA, A. A. BOGATCHEV, G. M. CHUBARIAN, O. DORVAUX, I. M. ITKIS, M. G. ITKIS, et al. "GAMMA-RAY EMISSION FROM FISSION OF HEAVY NUCLEI." In Proceedings of the Third International Conference. WORLD SCIENTIFIC, 2003. http://dx.doi.org/10.1142/9789812705211_0028.

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Bicknell, Geoffrey V. "Gamma-ray emission from active galactic nuclei—an overview." In The international symposium on high energy gamma-ray astronomy. AIP, 2001. http://dx.doi.org/10.1063/1.1370796.

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Tanaka, Tadao, Taro Shimada, Takeshi Ito, and Takenori Sukegawa. "Determination of Environmental Uranium Concentration by Utilizing Gamma-Ray Emission From the Progeny Radionuclides." In ASME 2010 13th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2010. http://dx.doi.org/10.1115/icem2010-40096.

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Abstract:
Nuclear facility sites such as an enrichment plant and fabrication plant are allowed to be released from the regulatory control of nuclear safety after the plants are decommissioned. It is necessary to confirm that the site has been decontaminated successfully, prior to be released. A determination method for U-238 concentration of background level in environment and for probate of vast site areas was proposed, in which the gamma-ray emission from the progeny radionuclides of U-238, such as Th-234, Pa-234m, Ra-226, are measured by in-situ gamma-ray spectrometry with a portable germanium semiconductor detector (portable Ge detector). Validity of the determination method of U-238 concentration from the progeny radionuclides was examined by the comparison between the U-238 concentration determined by the in-situ measurement with the portable Ge detector and that directly measured by ICP-MS. The U-238 concentration by the in-situ measurement was determined from peak counting rate at 186 keV of the gamma-ray emission corresponding to Ra-226. The determined U-238 concentration was in the order of 0.01 Bq/g in radioactive concentration, and was in comparable level with the concentrations decided by the ICP-MS. The proposed method utilizing gamma-ray estimation from the progeny radionuclides may be available for the U-238 concentration determination in vast land areas.
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Reports on the topic "Nucleon and gamma ray emission"

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Murphy, Ronald J., Gerald H. Share, J. E. Grove, W. N. Johnson, James D. Kurfess, William R. Purcell, K. McNaron-Brown, and Reuven Ramaty. Limits on Nuclear Gamma-Ray Emission from Orion. Fort Belvoir, VA: Defense Technical Information Center, January 1996. http://dx.doi.org/10.21236/ada464521.

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Woods, Natasha. Probing the Geometry and Physics of the Emission Region in Active Galactic Nuclei using hard X-ray & Gamma-ray Observations. Office of Scientific and Technical Information (OSTI), August 2010. http://dx.doi.org/10.2172/992928.

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Wang, Tzu-Fang. Emission and transmission gamma-ray computed tomography. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/491926.

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Schroeder, P. C., M. P. Ulmer, S. M. Matz, D. A. Grabelsky, W. R. Purcell, J. E. Grove, W. N. Johnson, et al. OSSE Upper Limits to Pulsar Gamma-Ray Emission. Fort Belvoir, VA: Defense Technical Information Center, September 1994. http://dx.doi.org/10.21236/ada464427.

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Clausen, Jay. Passive gamma-ray emission for underwater sediment-disturbance detection. Cold Regions Research and Engineering Laboratory (U.S.), July 2017. http://dx.doi.org/10.21079/11681/22769.

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Carroll, James J. Radiation Source for the Study of X-Ray Driven Gamma Emission. Fort Belvoir, VA: Defense Technical Information Center, July 2004. http://dx.doi.org/10.21236/ada426231.

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Kaneko, Yuki, E. Ramirez-Ruiz, J. Granot, C. Kouveliotou, S. E. Woosley, S. K. Patel, E. Rol, et al. Prompt and Afterglow Emission Properties of Gamma-Ray Bursts with Spectroscopically Identified Supernovae. Office of Scientific and Technical Information (OSTI), July 2006. http://dx.doi.org/10.2172/886788.

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Escher, J. Gamma-ray Emission After Neutron Capture: Modeling for Excitation Energies Involving Strongly Overlapping Resonances. Office of Scientific and Technical Information (OSTI), September 2013. http://dx.doi.org/10.2172/1097709.

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Vasu-Devan, Vidya. Extended Source Gamma-Ray Emission from WIMP Annihilation in the Sagittarius Dwarf Elliptical Galaxy (SULI paper). Office of Scientific and Technical Information (OSTI), January 2006. http://dx.doi.org/10.2172/877991.

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Schwartz, G. M. Development of small-diameter lead-glass-tube matrices for gamma-ray conversion in positron emission tomography. Office of Scientific and Technical Information (OSTI), May 1985. http://dx.doi.org/10.2172/5680472.

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