Dissertations / Theses on the topic 'PARTICLE RADIATION'
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Taheri, Faissal Bakkali. "Numerical and experimental studies of coherent Smith-Purcell radiation." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:d483c501-ba46-4e08-9d38-5af29211aedc.
Full textTesta, Mauro. "Charged particle therapy, ion range verification, prompt radiation." Phd thesis, Université Claude Bernard - Lyon I, 2010. http://tel.archives-ouvertes.fr/tel-00566188.
Full textBates, Adrian P. "Small particle characterisation by scattering of polarised radiation." Thesis, University of Nottingham, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243345.
Full textGrant, James Paul. "GaN radiation detectors for particle physics and synchrotron applications." Thesis, University of Glasgow, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.443418.
Full textKirby, Daniel James. "Radiation dosimetry of conventional and laser-driven particle beams." Thesis, University of Birmingham, 2011. http://etheses.bham.ac.uk//id/eprint/2816/.
Full textHegyi, Gyorgy. "Particle size determination for alpha-emitters using CR-39." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0019/MQ55065.pdf.
Full textUlmer, Bernd. "Back scatter imaging with megavoltage radiation." Thesis, University of Surrey, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246070.
Full textKoziel, Michal. "Development of radiation hardened pixel sensors for charged particle detection." Strasbourg, 2011. http://www.theses.fr/2011STRA6237.
Full textCMOS Pixel Sensors are being developed since a few years to equip vertex detectors for future high-energy physics experiments with the crucial advantages of a low material budget and low production costs. The features simultaneously required are a short readout time, high granularity and high tolerance to radiation. This thesis mainly focuses on the radiation tolerance studies. To achieve the targeted readout time (tens of microseconds), the sensor pixel readout was organized in parallel columns restricting in addition the readout to pixels that had collected the signal charge. The pixels became then more complex, and consequently more sensitive to radiation. Different in-pixel architectures were studied and it was concluded that the tolerance to ionizing radiation was limited to 300 krad with the 0. 35-um fabrication process currently used, while the targeted value was several Mrad. Improving this situation calls for implementation of the sensors in processes with a smaller feature size which naturally improve the radiation tolerance while simultaneously accommodate all the in-pixel microcircuitry in small pixels. Another aspect addressed in this thesis was the tolerance to non ionizing radiation, with a targeted value of >1013 neq/cm2. Different CMOS technologies featuring an enhanced signal collection were therefore investigated. It was demonstrated that this tolerance could be improved to 3•1013 neq/cm2 by the means of a high-resistivity epitaxial layer. This achievement triggered a new age of the CMOS pixel sensors and showed that their development is on a good track to meet the requirements of the particularly demanding CBM experiment
Mitchell, Edward Frank. "Development of a miniaturised particle radiation monitor for Earth orbit." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/11679.
Full textThornton, D. A. "Calculating the responses of self-powered radiation detectors." Thesis, Open University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.237741.
Full textFulcher, Jonathan Richard. "Radiation effects in electronics for the CMS tracking detector." Thesis, Imperial College London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250692.
Full textHossain, Md Anwar. "Fabrication and optimisation of room-temperature CdZnTe radiation detectors." Thesis, University of Surrey, 2002. http://epubs.surrey.ac.uk/844281/.
Full textStejskal, Pavel. "Radiation effects in optical link components for future particle physics detectors." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/12870.
Full textLewis, Benjamin Tomos. "Using smoothed particle radiation magnetohydrodynamics to explore how protostars are formed." Thesis, University of Exeter, 2017. http://hdl.handle.net/10871/28934.
Full textCampbell, Steven Conner. "DETERMINATION OF ACOUSTIC RADIATION EFFICIENCY VIA PARTICLE VELOCITY SENSOR WITH APPLICATIONS." UKnowledge, 2019. https://uknowledge.uky.edu/me_etds/133.
Full textNixon, Gilbert. "Data acquisition and control in particle physics and astronomy." Thesis, University College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340538.
Full textAngus, Stephen Andrew. "Phenomenology of dark radiation and string compactifications." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:739ffcb2-bf9d-4fd3-8d6c-911d2d599f5e.
Full textIsoyama, Soichiro. "Radiation reaction to the motion of a point particle in Kerr spcetime." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/188475.
Full textSitu, Peter D. "Voxel based beta particle dosimetry methods in mice." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/5897.
Full textThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 14, 2007) Vita. Includes bibliographical references.
Pechhacker, Roman. "Particle acceleration with associated generation and absorption of electromagnetic radiation in solar plasmas." Thesis, Queen Mary, University of London, 2014. http://qmro.qmul.ac.uk/xmlui/handle/123456789/8843.
Full textLongstaff, Wilmer Gregg. "Three-dimensional analysis of optical transition radiation." Thesis, Monterey, California. Naval Postgraduate School, 1988. http://hdl.handle.net/10945/23428.
Full textA three dimensional analysis of the intensity distribution of backward optical transition radiation has been performed. The effects of variations in electron energy and beam divergence and on material properties such as dielectric permittivities and the resultant coherence length upon the angular distribution and polarization of optical transition radiation has been investigated. A surprising observation important to the use of optical transition radiation as a diagnostic tool for high energy electron beams is the behavior of the perpendicular component of the intensity. In contrast to low energies where the parallel component dominates, at electron energies above 200 MeV, the perpendicular component dominates. This requires the use of a polarization filter to diagnose particle beam properties at high energies.
http://archive.org/details/threedimensional00long
Lieutenant, United States Navy
Jung, Yun Su. "Effects of charge distribution within a particle beam on the sub-Cerenkov radiation." Thesis, Monterey, California: U.S. Naval Postgraduate School, 1987. http://hdl.handle.net/10945/22767.
Full textKubota, Yuko. "Study on Variation of Radiation Belt Electron Fluxes Through Nonlinear Wave-Particle Interactions." Kyoto University, 2018. http://hdl.handle.net/2433/232003.
Full textMossuz, Laurence. "Etude de la production et de la désintégration semi-électronique de particules charmées dans les diffusions inélastiques de neutrinos." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997GRE10087.
Full textVickers, Colin Edward. "K-shell absorption spectroscopy of radiation and shockwave propagation through low density foams." Thesis, Imperial College London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271304.
Full textReeve, John Anthony. "A study of hard radiation in the decay of the Z to dimuons." Thesis, University of Sheffield, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267066.
Full textCullen, Ashley James. "Strip detector for high spatial resolution dosimetry in radiation therapy." Centre for Medical Radiation Physics - Faculty of Engineering, 2009. http://ro.uow.edu.au/theses/848.
Full textPetkova, Maya Atanasova. "Cloudy with a chance of starlight : coupling of smoothed particle hydrodynamics and Monte Carlo radiative transfer for the study of ionising stellar feedback." Thesis, University of St Andrews, 2018. http://hdl.handle.net/10023/16557.
Full textTobiasson, John Robert. "Determining H2O Vapor Temperature and Concentration in Particle-Free and Particle-Laden Combustion Flows Using Spectral Line Emission Measurements." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6497.
Full textWei, Xiaomin. "Study and improvement of radiation hard monolithic active pixel sensors of charged particle tracking." Phd thesis, Université de Strasbourg, 2012. http://tel.archives-ouvertes.fr/tel-00953382.
Full textKraishan, Amani. "MEASUREMENT OF LONGITUDINAL SINGLE-SPIN ASYMMETRY FOR W± BOSON PRODUCTION IN POLARIZED PROTON-PROTON COLLISIONS AT STAR AT FORWARD RAPIDITY." Diss., Temple University Libraries, 2018. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/521379.
Full textPh.D.
Spin plays a key role in the determination of the properties of fundamental particles and their interactions. The spin structure of the proton is one of the most challenging open puzzles in Quantum Chromodynamics (QCD). It was believed that the proton spin was carried by the spin of its three valence quarks. However, The results of the EMC (European Muon Collaboration) experiments in 1987 suggested that the quark intrinsic spin contributes, ∆Σ = 0.12 ± 0.09 ± 0.14 of the proton spin setting off the proton spin crisis. ”Where is the rest of the proton spin is coming from?” remains a major challenge to our understanding of the structure of the proton. The Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL) delivers the highest energy polarized proton-proton collisions at a center of mass energy up to 510 GeV and provides a unique opportunity to study quark and gluon spin structure of the proton and the QCD dynamics at high energy scale. The production of W −(+) bosons in polarized proton-proton collisions provides an ideal tool to study the spin-flavor structure of the proton sea quark distributions profiting from the parity-violating nature of the weak interactions. W −(+) bosons are produced in u ̄ + d (d ̄ + u) annihilation and can be detected through their leptonic decay mode. The STAR experiment can detect charged leptons e−(+) at mid and forward rapidity regions. In this analysis, the measurement of the longitudinal single-spin asymmetries at forward rapidity for W boson production will be presented based on the data sample collected in 2013 (RUN-13) corresponding to an integrated luminosity 220 pb−1 with an average beam polarization ∼ 56%.
Temple University--Theses
McGarry, Stephen. "Irradiated silicon particle detectors." Thesis, Lancaster University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369468.
Full textHowland, Matthew. "Transcriptomic and Secretomic Profiling of Isolated Leukocytes Exposed to Alpha-Particle and Photon Radiation - Applications in Biodosimetry." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/26081.
Full textPerks, Jonathan Michael. "Phosphorus segregation and diffusion in nickel and Fe-Cr-Ni alloys under fast particle irradiation." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329993.
Full textČeponis, Tomas. "Radiation technologies for optimization of Si device parameters and techniques for control of radiation defects." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121001_093158-64168.
Full textAukštųjų energijų fizikos eksperimentuose plačiai taikomi puslaidininkiniai pin struktūros dalelių detektoriai jonizuojančiosioms dalelėms registruoti. Radiacinė spinduliuotė sukuria defektus medžiagoje ir neigiamai įtakoja detektorių parametrus, todėl būtina charakterizuoti apšvitintus detektorius ieškant būdų, kaip juos patobulinti. Apšvitintų detektorių charakterizavimui taikomi volt-amperinių, volt-faradinių būdingųjų dydžių matavimai ir analizė, giliųjų lygmenų talpinė bei šiluma skatinamų srovių spektroskopija. Tačiau stipriai apšvitintuose detektoriuose, kai defektų koncentracija viršija legirantų koncentraciją bei išauga nuotėkio srovė, šie metodai negali būti taikomi siekiant korektiškai įvertinti radiacinių defektų parametrus. Šiame darbe buvo sukurti modeliai, apibūdinantys slinkties sroves, tekančias detektoriuje dėl elektrinio lauko persiskirstymo keičiantis išorinei įtampai arba elektriniame lauke judant injektuotam krūviui. Šie modeliai buvo pritaikyti naujų metodikų sukūrimui, kurios įgalina įvertinti krūvio pernašos, pagavimo, rekombinacijos/generacijos parametrus stipriai apšvitintuose detektoriuose po apšvitos. Sukurti metodai buvo pritaikyti defektų spektroskopijai ir skersinei žvalgai sluoksninėse struktūrose bei defektų evoliucijos tyrimams apšvitos metu. Disertacijoje pateikti ir aptarti apšvitintų detektorių ir apšvitos metu pasireiškiančios parametrų kaitos rezultatai. Elektronikos grandynuose plačiai naudojami galios pin struktūros diodai, kurie... [toliau žr. visą tekstą]
Ede, Anthony. "Studies of crystalline CdZnTe radiation detectors and polycrystalline thin film CdTe for X-ray imaging applications." Thesis, University of Surrey, 2002. http://epubs.surrey.ac.uk/843974/.
Full textPettersson, Nora. "Study of systematic effects from the level of Final State Radiation in tt-background to SUSY dilepton channels." Thesis, KTH, Partikel- och astropartikelfysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-93450.
Full textGepford, Heather Jean. "Development and implementation of a system for reading nuclear etched tracks in PADC (CR-39) using coherent light scattering." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/17134.
Full textMartin, Ian Peter Stephen. "Short pulse x-ray generation in synchrotron radiation sources." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:9ac0bcc2-bedb-46d0-b95c-22f4741f45a0.
Full textKersten, Tobias. "Electron acceleration and loss caused by wave-particle interactions in the Van Allen radiation belts." Thesis, Open University, 2016. http://oro.open.ac.uk/47208/.
Full textInfantino, Angelo <1985>. "Advanced aspects of radiation protection in the use of particle accelerators in the medical field." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/6807/1/INFANTINO_PHD.pdf.
Full textIn questo lavoro, il codice Monte Carlo (MC) FLUKA è stato utilizzato per simulare il ciclotrone GE PETtrace (16.5 MeV) installato presso l’azienda ospedaliera “S. Orsola-Malpighi” (Bologna, IT), quotidianamente utilizzato per la produzione di radiofarmaci PET. Le simulazioni sono state effettuate per valutare diversi fenomeni e quantità d’interesse radiologico tra cui l’equivalente di dose ambientale nell’intorno dell’acceleratore, il numero di neutroni emessi per protone incidente e la loro distribuzione spettrale, l’attivazione dei componenti del ciclotrone e delle pareti del bunker, l’attivazione dell’aria interna al bunker ed in particolare la produzione di 41Ar, la resa a saturazione di radionuclidi d’interesse in medicina nucleare. Le simulazioni sono state validate, in termini di parametri fisici e di trasporto da utilizzare nel range energetico caratteristico delle applicazioni mediche, con una serie di misure sperimentali. Il modello MC validato è stato quindi applicato ad altri casi pratici quali lo studio di fattibilità della produzione diretta in ciclotrone di 99mTc, la produzione di radionuclidi ad uso medico con il ciclotrone TR13 (13 MeV) installato presso il centro di ricerca TRIUMF (Vancouver, CA), la progettazione completa del nuovo centro PET dell’ospedale “Sacro Cuore-Don Calabria” di Negrar (Verona, IT), incluso il ciclotrone ACSI TR19 (19 MeV), lo studio del campo di dose nell’intorno di un sistema di selezione dell’energia (degrader) di un ciclotrone per terapia, la progettazione di specifiche “porte a tappo” per un sito di produzione di radionuclidi ad uso medico, in cui verrà installato un ciclotrone da 70 MeV e sei diverse beam line, e per il parziale decommissioning di un centro PET e la sostituzione di un ciclotrone Scanditronix MC17 (17 MeV), attualmente installato, con una nuova unità TR19.
Infantino, Angelo <1985>. "Advanced aspects of radiation protection in the use of particle accelerators in the medical field." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/6807/.
Full textIn questo lavoro, il codice Monte Carlo (MC) FLUKA è stato utilizzato per simulare il ciclotrone GE PETtrace (16.5 MeV) installato presso l’azienda ospedaliera “S. Orsola-Malpighi” (Bologna, IT), quotidianamente utilizzato per la produzione di radiofarmaci PET. Le simulazioni sono state effettuate per valutare diversi fenomeni e quantità d’interesse radiologico tra cui l’equivalente di dose ambientale nell’intorno dell’acceleratore, il numero di neutroni emessi per protone incidente e la loro distribuzione spettrale, l’attivazione dei componenti del ciclotrone e delle pareti del bunker, l’attivazione dell’aria interna al bunker ed in particolare la produzione di 41Ar, la resa a saturazione di radionuclidi d’interesse in medicina nucleare. Le simulazioni sono state validate, in termini di parametri fisici e di trasporto da utilizzare nel range energetico caratteristico delle applicazioni mediche, con una serie di misure sperimentali. Il modello MC validato è stato quindi applicato ad altri casi pratici quali lo studio di fattibilità della produzione diretta in ciclotrone di 99mTc, la produzione di radionuclidi ad uso medico con il ciclotrone TR13 (13 MeV) installato presso il centro di ricerca TRIUMF (Vancouver, CA), la progettazione completa del nuovo centro PET dell’ospedale “Sacro Cuore-Don Calabria” di Negrar (Verona, IT), incluso il ciclotrone ACSI TR19 (19 MeV), lo studio del campo di dose nell’intorno di un sistema di selezione dell’energia (degrader) di un ciclotrone per terapia, la progettazione di specifiche “porte a tappo” per un sito di produzione di radionuclidi ad uso medico, in cui verrà installato un ciclotrone da 70 MeV e sei diverse beam line, e per il parziale decommissioning di un centro PET e la sostituzione di un ciclotrone Scanditronix MC17 (17 MeV), attualmente installato, con una nuova unità TR19.
Fahy, Katherine Erin. "Thermal Burn Injury Induced Microvesicle Particle Release." Wright State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=wright149383031006972.
Full textAmutkan, Ozge. "Space Radiation Environment And Radiation Hardness Assurance Tests Of Electronic Components To Be Used In Space Missions." Phd thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612238/index.pdf.
Full textRadiation Hardness Assurance&rdquo
. In this thesis, the hardening of electronics against space radiation is discussed. This thesis describes the space radiation environments, physical mechanisms, effects of space radiation, models of the space radiation environment, simulation of the Total Ionizing Dose, and &rdquo
Radiation Hardness Assurance&rdquo
which covers Total Ionizing Dose and Single Event Effects testing and analyzing of the electronics.
Gillespie, Douglas Michael. "A radial drift chamber combining tracking and transition radiation detection for use in the H1 experiment and HERA." Thesis, University of Liverpool, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316907.
Full textBruckmayer, Manfred. "Imaging cryogenic detectors for astro and particle physics." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312189.
Full textThapa, Pariksha. "Kinetics of Microvesicle Particle Release in Keratinocytes." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1566504910360327.
Full textRoth, Olivia. "Physical and Chemical Aspects of Radiation Induced Oxidative Dissolution of UO2." Licentiate thesis, KTH, Kemi, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-622.
Full textThe general subject of this thesis is oxidative dissolution of UO2. The dissolution of UO2 is mainly investigated because of the importance of the UO2 matrix of spent nuclear fuel as a barrier against radionuclide release in a future deep repository. U(IV) is extremely insoluble under the reducing conditions prevalent in a deep repository, whereas U(VI) is more soluble. Hence, oxidation of the UO2-matrix will affect its solubility and thereby its function as a barrier. In this thesis the relative efficiency of one- and two electron oxidants in dissolving UO2 is studied. The oxidative dissolution yield of UO2 was found to differ between one- and two-electron oxidants. At low oxidant concentrations the dissolution yields for one-electron oxidants are significantly lower than for two-electron oxidants. However, the dissolution yield for one-electron oxidants increases with increasing oxidant concentration, which could be rationalized by the increased probability for two consecutive one-electron oxidations at the same site and the increased possibility for disproportionation. Furthermore, the relative impact of radical and molecular radiolysis products on oxidative dissolution of UO2 is investigated. Experiments were performed where the amount of dissolved U(VI) was measured in γ-irradiated systems dominated by different oxidants. We have found that the UO2 dissolution rate in systems exposed to γ-irradiation can be estimated from oxidant concentrations derived from simulations of radiolysis in the corresponding homogeneous systems and rate constants for the surface reactions. These simulations show that for all systems studied in this work, the molecular oxidants will be the most important oxidants for long irradiation times (>10 hours). Similar simulations of α-irradiated systems show that in systems relevant for a deep repository for spent nuclear fuel, only the molecular oxidants (mainly H2O2) are of importance for the dissolution of the fuel matrix. The effect on UO2 reactivity by irradiation of the material is of importance when predicting the spent fuel dissolution rate since the fuel, due to its content of radionuclides, is exposed to continuous self-irradiation. The effect of irradiation on the reaction between solid UO2 and MnO4- in aqueous solutions was studied. It was found that irradiation of UO2 at doses >40 kGy increases the reactivity of the material up to ~1.3 times the reactivity of unirradiated UO2. The increased reactivity remains after the irradiation and can possibly be attributed to permanent changes in the material. This issue must be taken into account when predicting the reactivity of spent nuclear fuel since the fuel is exposed to doses >40 kGy after only a few days in the reactor. It has earlier been suggested that the rate of a heterogeneous liquid-solid reaction depends on the size of the solid particles. This was investigated for UO2 particles in this thesis. Experimental kinetic parameters are compared to the previously proposed equations for UO2 powder of four size fractions and a UO2 pellet. We have found that the particle size dependence of the second order rate constant and activation energy for oxidation of UO2 by MnO4- is described quite well by the proposed equations.
QC 20101123
Kundu, Ashoke. "Monte Carlo simulation of gas-filled radiation detectors." Thesis, University of Surrey, 2000. http://epubs.surrey.ac.uk/987/.
Full textHofstetter, Markus [Verfasser], and Stefan [Akademischer Betreuer] Thalhammer. "Gallium nitride based thin films for photon and particle radiation dosimetry / Markus Hofstetter. Betreuer: Stefan Thalhammer." Augsburg : Universität Augsburg, 2013. http://d-nb.info/1077701608/34.
Full text