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Dissertations / Theses on the topic 'Detector of ionizing radiation'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Wang, Jinghui. "Fabrication, Characterization and Simulation of Sandwich Structure GaN Schottky Diode Ionizing Radiation Detectors." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1405497243.

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2

Buerkle, Todd Michael. "Ionizing radiation detector for environmental awareness in FPGA-based flight computers." Thesis, Montana State University, 2012. http://etd.lib.montana.edu/etd/2012/buerkle/BuerkleT0512.pdf.

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Ionizing radiation has a detrimental effect on digital electronics that operate in extraterrestrial environments. When electronics are struck by these high energy particles, the effect on the system can range from temporary faults to permanent damage. Modern reconfigurable digital designs are using new architectures which can utilize environmental awareness to increase the system's tolerance to faults caused by radiation strikes. These digital fabrics are capable of reprogramming circuitry based on information provided to the system by an external source. In this thesis the design, modeling, a

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3

Zenya, I. M., A. B. Galat, P. A. Gashin, et al. "Photosensitive heterostructure – chalcogenide scintillator” detectors of ionizing radiation based on AIIBVI compounds." Thesis, Інститут електронної фізики НАН України, 2007. http://openarchive.nure.ua/handle/document/9243.

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4

Adkins, Raymond. "A LIQUID CRYSTAL BASEDELECTRON SHOWER DETECTOR." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1522427297703445.

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5

Mandelli, Elena. "Ionizing radiation detectors and their innovative application in proton therapy." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21880/.

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Through this thesis we wanted to present a branch of radiotherapy that uses proton beams to destroy tumors, namely proton therapy. This technique, although relatively new (1946), is rapidly spreading thanks to the advantage of being able to precisely locate the release of the therapeutic dose of radiation. After a brief presentation of the discovery of ionizing radiations’ history and their possible applications, we focused on the study of the protons’ behavior when they interact with matter, going to show why they are so advantageous, by studying different quantities such as stopping power,

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6

Maccaferri, Francesco. "Organic thin-film transistors fabricated via pneumatic nozzle printing as direct detectors for ionizing radiations." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23204/.

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Organic semiconducting materials have recently proved to be a suitable candidate for the direct detection of X-ray radiation. Despite the low atomic number Z, organic materials can respond to ionizing radiation through the photoconductive gain mechanism. The response is governed by trap states: majority carrier traps directly impact the mobility, reducing the collection of charges at the electrodes; minority carrier traps, on the other hand, increase the output current by inducing the injection of extra majority carriers from the contacts in order to preserve charge neutrality. Employing organ

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7

COVA, FRANCESCA. "Rare-Earth doped Scintillating Silica Fibers for ionizing radiation detection." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2020. http://hdl.handle.net/10281/263105.

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I materiali con proprietà di scintillazione trovano ampio impiego in applicazioni che riguardano la rivelazione di radiazioni ionizzanti, quali il monitoraggio e la diagnostica per immagini, la dosimetria in campo medico, la sicurezza nazionale ed industriale, e la fisica delle alte energie. Recentemente, la scoperta di nuovi scintillatori veloci ed efficienti ha rappresentato un campo di ricerca in attivo e continuo sviluppo. Fra i numerosi sistemi indagati, le fibre ottiche scintillanti hanno suscitato grande interesse grazie alla loro estrema versatilità che permette la progettazione di riv

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8

JAFFE, DEBORAH RUTH. "MOUSE SKIN TUMOR INITIATION BY IONIZING RADIATION AND THE DETECTION OF DOMINANT TRANSFORMING GENE(S)." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184146.

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The initiating potential of a range of 4 MeV X-rays was studied using the mouse skin two-stage model of carcinogenesis. A single dose of radiation was followed by promotion with 12-O-tetradecanoyl phorbol-13-acetate (TPA). The effect of TPA on tumor incidence when applied as a single dose 24 hours prior to irradiation was examined. Studies were also designed to investigate the effect of promotion duration on tumor incidence. Animals were promoted with TPA for 10 or 60 weeks. Evidence presented here indicates that ionizing radiation can act as an initiator in this model system. All animals that

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9

Обравит, Ю. А., И. Г. Гончаренко, Artem Volodymyrovych Dmitriiev та ін. "Энергетическая структура молекулы HgI2". Thesis, Видавництво СумДУ, 2010. http://essuir.sumdu.edu.ua/handle/123456789/4233.

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10

Merzi, Stefano. "Novel applications of FBK SiPMs in the detection of low energy ionizing radiation." Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/276309.

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Silicon photon multipliers, or SiPMs, are single photon detectors that have grown increasing interest in the last decade as an alternative to photomultiplier tubes in many field of physics, engineering and medicine. Compared to PMTs, SiPMs are more compact, rugged and operate at much lower bias voltage, in the order of tens of volts. Moreover they are insensitive to magnetic field and can achieve a very high radiopurity SiPM detectors work on the principle of a diode operated above the breakdown voltage, in Geiger mode. In this condition, the electric field in the depletion region is high en

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11

Merzi, Stefano. "Novel applications of FBK SiPMs in the detection of low energy ionizing radiation." Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/276309.

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Silicon photon multipliers, or SiPMs, are single photon detectors that have grown increasing interest in the last decade as an alternative to photomultiplier tubes in many field of physics, engineering and medicine. Compared to PMTs, SiPMs are more compact, rugged and operate at much lower bias voltage, in the order of tens of volts. Moreover they are insensitive to magnetic field and can achieve a very high radiopurity SiPM detectors work on the principle of a diode operated above the breakdown voltage, in Geiger mode. In this condition, the electric field in the depletion region is high enou

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12

Rousset, Philippe. "Etude expérimentale et théorique du fonctionnement du détecteur gazeux à lame en mode proportionnel." Grenoble 1, 1986. http://www.theses.fr/1986GRE10076.

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Detecteur gazeux courbe a lame anode. Fonctionnement en mode proportionnel resultant de phenomenes de compensation electrostatique dus a l'extension des lames a condition d'utiliser des melanges gazeux adequats

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13

Spisni, Giacomo. "Radiation-sensitive OXide semiconductor Field Effect Transistor (ROXFET): a novel thin-film device for real-time and remote ionizing radiation detection." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24394/.

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Nowadays, ionizing radiation detectors find application in a wide range of contexts, spanning from industry to healthcare and security. In this background, the next generation of ionizing radiation sensors require devices that are accurate, light-weight, relatively inexpensive and capable to be read-out in real-time and remotely. In recent years, research groups at the University of Bologna and the NOVA University of Lisbon (Portugal) have developed Radiation-sensitive OXide-semiconductor Field-Effect Transistors (ROXFET) to be employed as fast, real-time x-ray dosimetry detection systems. The

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14

VILLAVICENCIO, ANNA L. C. H. "Avaliacao dos efeitos da radiacao ionizante de sup60Co em propriedades fisicas , quimicas e nutricionais dos feijoes PHASEOLUS VULGARIS L. e VIGNA UNGUICULATA (L.) WALP." reponame:Repositório Institucional do IPEN, 1998. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10785.

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15

Valente, Marco. "Signalling detection of DNA damage induced by low doses of ionizing radiation in human lymphocytes." Versailles-St Quentin en Yvelines, 2011. http://www.theses.fr/2011VERS0021.

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Etude du lien entre radiosensibilité clinique d’un patient et de ses lymphocytes irradiés in vitro dans le but de faire un test prédictif de la radiosensibilité individuelle. La radiosensibilité clinique est quantifiée par les effets secondaires d’une radiothérapie et la sensibilité cellulaire est mesurée grâce à la cinétique d’apparition/disparition des doubles cassures de l’ADN radio-induites (marquées par des foyers gamma-H2AX). Pour rendre ce protocole utilisable en application clinique, on a amélioré la viabilité de l'échantillon et augmenté la vitesse d’analyse. Enfin, nous nous sommes c

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16

MARIN, HUACHACA NELIDA S. "Teste do cometa e teste de germinacao na deteccao do tratamento de alimentos com radiacao ionizante." reponame:Repositório Institucional do IPEN, 2002. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11029.

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CECATTI, SONIA G. P. "Desenvolvimento de sistemas tandem de activimetros e estabelecimento de dosimetria beta em servicos de medicina nuclear." reponame:Repositório Institucional do IPEN, 2004. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11203.

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18

NONATO, FERNANDA B. C. "Estudo da resposta de monitores de radioprotecao em feixes padronizados de radiacao X, gama e beta." reponame:Repositório Institucional do IPEN, 2010. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9515.

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19

Scarpin, Jorge Alberto. "Detector de raios X baseado no diodo pin." Universidade Tecnológica Federal do Paraná, 2016. http://repositorio.utfpr.edu.br/jspui/handle/1/2693.

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A radiação ionizante possibilitou à medicina a utilização do diagnóstico por imagem, cuja finalidade é obter uma avaliação médica dos tecidos e funções orgânicas do corpo humano. O seu uso, entretanto, trouxe alguns inconvenientes, como o excesso de radiação a que uma pessoa pode ficar exposta, podendo trazer graves consequências a sua saúde. Normas internacionais orientam quanto ao uso de equipamentos que se utilizam de radiação, quanto às doses sobre os pacientes e trabalhadores ocupacionais, bem como fornecem recomendações quanto à utilização dos equipamentos que produzem os raios X. Nos úl

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20

Junot, Danilo Oliveira. "Análise das propriedades termoluminescentes e exoeletrônicas de dosímetros de CaSO4:Eu com adição de prata." Pós-Graduação em Física, 2013. https://ri.ufs.br/handle/riufs/5297.

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The dosimetry of ionizing radiation is essential to procedures could be taken in order to maximize the beneficial effects that the use of such radiation can offer to society, as well as minimize damage from such radiation. As a result, different materials detectors have been proposed in the literature for use in personal and environmental dosimetry. Thermoluminescent detectors are widely used in these dosimetric procedures. The motivation of this work was to produce crystals of CaSO4 doped with unusual elements such as europium (Eu) and silver (Ag), including in the form of nanoparticles, prep

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21

Destefano, Natália. "Fabricação e caracterização de filmes finos de brometo de tálio (TIBr)." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/59/59135/tde-28042010-092654/.

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Por ser um semicondutor de elevado número atômico, elevada densidade de massa e largo gap de energia, o brometo de tálio (TlBr) é um material promissor para a detecção da radiação à temperatura ambiente. Entretanto, existem poucos trabalhos relacionados ao estudo deste material sob forma de filme fino policristalino para produção em grandes áreas como desejado para aplicações médicas. Neste trabalho, as técnicas de spray pyrolysis e evaporação térmica foram avaliadas como métodos alternativos para a deposição de filmes de TlBr policristalinos. Ambas as técnicas apresentam relativo baixo custo

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22

Bonifacio, Daniel Alexandre Baptista. "Modelagem de sistema de detecção para mamografia por emissão de pósitrons utilizando detectores cintiladores monolíticos." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-26042012-155440/.

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O objetivo deste trabalho foi propor, caracterizar e avaliar, por meio de simulações computacionais, um sistema de detecção de um tomógrafo PET (Positron Emission Tomography) dedicado para pequenas regiões. Os principais fatores considerados para a modelagem do sistema foram: resolução energética, resolução espacial, sensibilidade de detecção e custo do sistema. O pacote GATE (Geant4 Application for Tomographic Emission), baseado no código de transporte de radiação Geant4, foi escolhido para as simulações. Como forma de acompanhar os avanços da tecnologia PET, o tomógrafo Q-PEM/DoPET, da Univ

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23

Simionovski, Alexandre. "Sensor de corrente transiente para um sistema de proteção de circuitos integrados contra erros induzidos por radiação ionizante." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/179523.

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Este trabalho apresenta o desenvolvimento de um sensor de corrente transiente destinado a detectar a ocorrência de um evento transiente causado pela incidência de radiação ionizante em um circuito integrado. Iniciando com uma descrição dos efeitos da radiação sobre os circuitos integrados e dos tipos de radiação de interesse, os fundamentos da técnica Bulk- BICS são apresentados e as propostas existentes na literatura são expostas e avaliadas, com ênfase no sensor que utiliza a célula de memória dinâmica DynBICS, resultado de um trabalho prévio e do qual se dispõe de amostras fabricadas. Sobre

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24

Ng, Kwok Wah 1957. "Food preservation by ionizing radiation." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276680.

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The application of ionizing radiation as a preservation method for food is described and examined. The prospects and problems of introducing radiation technology for food preservation are discussed under the following aspects: (1) technical feasibilities; (2) irradiator design requirements; (3) facilities' cost analysis, and (4) legislation. Within the specified limits, ionizing radiation provides an efficacious food preservation treatment which will not lead to radioactivity induction or prejudice the safety and wholesomeness of the food. A brief introduction and description of the design app

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25

Hasan, N. M. "Effects of ionizing radiation on biomolecules." Thesis, University of Salford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234702.

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26

Barbary, O. M. "Effects of ionizing radiation on lipids." Thesis, University of Salford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372135.

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27

Parsons, Steven. "Detecting ionizing radiation with polarized light." Thesis, University of Surrey, 2017. http://epubs.surrey.ac.uk/841509/.

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Several groups have demonstrated the potential of the Pockels effect in Cadmium Zinc Telluride (CZT) as a means to detect ionizing radiation. Migrating charge carriers are believed to generate the signal detected via the Pockels effect due to the distortions they create within the electric field, however trapped space charge beneath the cathode has been regularly observed which suggests that the signal amplitude is potentially dominated by a large dose element. In this work, the effects of electric field collapse at the location of charge carrier generation, rather than where space charge buil

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28

Dolling, Jo-Anna. "Cellular responses to ionizing radiation and cisplatin." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ28336.pdf.

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29

Daniels, Robert D. "Leukemia Mortality and Occupational Ionizing Radiation Exposure." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1319487627.

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30

Bagatin, Marta. "Effects of Ionizing Radiation in Flash Memories." Doctoral thesis, Università degli studi di Padova, 2010. http://hdl.handle.net/11577/3426925.

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Semiconductor memories operating at sea level are constantly bombarded by ionizing radiation. Alpha particles, emitted by the radioactive contaminants that are inevitably present in the package and solder materials, may reach the sensitive areas of the chips and generate bit upsets. Furthermore, a shower of neutrons caused by interactions of cosmic rays with the external atmospheric layers can be a serious threat for the correct operation of electronics in the terrestrial environment. Satellite and spacecraft electronics must work reliably in an environment that is much harsher, because the hu

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31

Lecat-Mathieu, de Boissac Capucine. "Developing radiation-hardening solutions for high-performance and low-power systems." Electronic Thesis or Diss., Aix-Marseille, 2021. http://www.theses.fr/2021AIXM0413.

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De nouveaux acteurs industriels déploient de larges constellations de satellites, tandis que d'autres domaines comme l'industrie automobile développent des systèmes robustes. Ces systèmes s'appuient sur des technologies avancées, telles que le UTBB FD-SOI, afin d'atteindre les performances nécessaires. La complexité et la vitesse croissantes des systèmes nécessitent une caractérisation précise de ces technologies, ainsi qu'une adaptation des techniques traditionnelles de durcissement. L'objectif est l'étude des effets des radiations dans les technologies FD-SOI et bulk, ainsi que la recherche

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Jalandoni, D. Jay Moreno. "In-phantom measurement of HE or neutron protection dosimetry." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/16777.

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Usman, Muhammad. "Impact of Ionizing Radiation on 4H-SiC Devices." Doctoral thesis, KTH, Integrerade komponenter och kretsar, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-60763.

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Electronic components, based on current semiconductor technologies and operating in radiation rich environments, suffer degradation of their performance as a result of radiation exposure. Silicon carbide (SiC) provides an alternate solution as a radiation hard material, because of its wide bandgap and higher atomic displacement energies, for devices intended for radiation environment applications. However, the radiation tolerance and reliability of SiC-based devices needs to be understood by testing devices under controlled radiation environments. These kinds of studies have been previously p

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Travis, Neil. "Effects of ionizing radiation on diaphyseal cortical bone." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1181666404/.

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Shkandala, A. Y., Інна Валентинівна Чорна, Инна Валентиновна Черная, and Inna Valentynivna Chorna. "Response of human cancer cells to ionizing radiation." Thesis, Видавництво СумДУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/15936.

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Abdallah, Suaad Audat. "Investigation of Oxidative DNA Damage from Ionizing Radiation." University of Toledo Health Science Campus / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=mco1349377002.

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Mohd, Zain Rasif. "CdTe/CdZnTe pixellated radiation detector." Thesis, University of Glasgow, 2015. http://theses.gla.ac.uk/5799/.

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The work in this thesis is focused on the study of CdTe/CdZnTe pixellated detectors. During this research, three main aspects have been covered in the development and application of these detectors. These broadly describe the fabrication process, characterisation of energy spectrum and imaging performance, and application of these detectors in industrial X-ray tomography. The first topic to be discussed in detail is the fabrication process of CZT pixellated detectors. This is a process that involves many steps, such as cutting the sample, cleaning the substrate, writing a masking pattern with

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Peters, Chris (Christopher Joseph) Carleton University Dissertation Engineering Electrical. "MOSFET based gamma radiation detector." Ottawa, 1992.

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Zahir, Mostafa Lokman. "Nouvelles références en énergie X et gamma inférieures à 100 keV établies à l'aide de calorimètres magnétiques ultra haute résolution." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASP125.

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Les raies X et gamma émis par des radionucléides peuvent être utilisées pour étalonner l'échelle en énergie des détecteurs à dispersion d'énergie. C'est le cas notamment pour les détecteurs cryogéniques qui offrent une excellente résolution, mais présentent des non-linéarités qu'il faut corriger. Afin d'étalonner ces détecteurs avec précision en dessous de 200 keV, il est nécessaire de disposer de rayons X et gamma ayant une incertitude de l'ordre de 0,1 eV. Or, les énergies des photons gamma recommandées respectant ce critère sont rares ou basées sur une seule mesure expérimentale. L'objectif

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Prokopčiuk, Nina. "Application of probabilistic methods for ionizing radiation dose assessment." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20111201_142318-45933.

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The aim of this doctoral dissertation is to assess the probable impact of ionizing radiation on the public health and the environment (including fauna and flora) in the vicinity of nuclear power engineering objects (in case of the Maišiagala near-surface radioactive waste repository – by evaluating the possible impact on the human health, while in case of the Ignalina NPP cooling basin, Lake Drūkšiai – by evaluating the possible impact on the freshwater ecosystem biota) by applying probabilistic methods as well as to determine whether this activity after assessment of its character and impact

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Daar, Eman S. "Effect of ionizing radiation on hyaluronan and fibrous pericardium." Thesis, University of Surrey, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540706.

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Döse, Magnus. "Ionizing Radiation in Concrete and Concrete Buildings : Empirical Assessments." Licentiate thesis, KTH, Betongbyggnad, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-192956.

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One of the major issues with radiation from the natural isotopes 40K, 226Ra (238U) and 232Th and their decay products is the forthcoming legislation from the European Commission in relation to its Basic Safety Directive (2014). The European legislation is mandatory and could not be overthrown by national legislation. Hence, even though the BSS is still a directive it is foreseen as becoming a regulation in due time. The reference value of the natural isotopes, from a radiation point of view, set for building materials is 1 mSv per year (EC, 2014). Earlier recommendations (The Radiation Protect

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Pojtinger, Stefan [Verfasser]. "Dosimetry of Ionizing Radiation in Magnetic Fields / Stefan Pojtinger." Tübingen : Universitätsbibliothek Tübingen, 2021. http://d-nb.info/123768434X/34.

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Nguyen, Vinh. "Late Effects of Ionizing Radiation on Normal Microvascular Networks." View the abstract Download the full-text PDF version, 1999. http://etd.utmem.edu/ABSTRACTS/1999-001-nguyen-index.html.

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Thesis (M.S. )--University of Tennessee Health Science Center, 1999.<br>Title from title page screen (viewed on October 17, 2008). Research advisor: Mohammad F. Kiani. Document formatted into pages (xi, 67 p. : ill.). Vita. Abstract. Includes bibliographical references (p. 55-67).

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Hafer, Kurt Mitsche. "Biological protection against low- and high-LET ionizing radiation." Diss., Restricted to subscribing institutions, 2008. http://proquest.umi.com/pqdweb?did=1692812641&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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Gupta, Ashok Kumar. "Molecular mechanisms of ionizing radiation carcinogenesis in mouse skin." Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/282881.

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Ionizing radiation is a physical agent that is tumorigenic in all exposed tissues. These radiation-induced secondary neoplasms tend to be more aggressive and carry a poor prognosis. Our knowledge of the molecular mechanisms of ionizing radiation carcinogenesis is not as advanced as compared to chemical carcinogenesis. We have used repeated exposure to low LET radiation in the mouse skin model to study the molecular mechanisms of ionizing radiation as a complete carcinogen and as a tumor progression agent. Shaved backs of CD-1 mice were treated with fractionated doses of beta-irradiation in a c

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Gasperin, Alberto. "Advanced Non-Volatile Memories: Reliability and Ionizing Radiation Effects." Doctoral thesis, Università degli studi di Padova, 2008. http://hdl.handle.net/11577/3425599.

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Reliability study and investigation of ionizing radiation effects on advanced non-volatile memories. The memories addressed in this thesis are: nanocrystal memories, Phase Change Memories (PCM), and the Oxide-Nitride-Oxide stack. In the thesis there is also a brief description of the major interaction mechanisms between ionizing particles and electronic devices.

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Brucoli, Matteo. "Total ionizing dose monitoring for mixed field environments." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS093/document.

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La mesure de la dose ionisante est aujourd'hui une tâche cruciale pour une large gamme d'applications fonctionnant dans des environnements de rayonnement sévères. Dans le contexte de l'amélioration de la luminosité du grand collisionneur de hadrons (LHC), la mesure des niveaux de rayonnement le long du complexe d'accélérateurs du CERN va devenir encore plus difficile. A cet effet, une connaissance plus détaillée du champ de rayonnement dans le tunnel de l'accélérateur et ses zones adjacentes devient nécessaire pour définir les exigences d'installation, de déplacement ou de blindage de l'électr

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Chu, Teh-Ling 1959. "Transition radiation detector with straw tubes." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/291429.

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Charged particle tracking and identification are important elements of any elementary particle physics experiment. Transition radiation is often used to separate electrons from heavier charged particles. This thesis describes a combined tracking and transition radiation detector well suited to the high rate environment of the Superconducting Super Collider (SSC). In the proposed "Electrons Muons Partons with Air Core Toroids" (EMPACT) detector at the SSC the straw tubes with 4 mm diameter filled with 50-50 Xenon-CO₂ and polyethylene radiation foams are selected for the tracking system. The pri

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Hui, Siu-kee, and 許兆基. "Characterization of a new commercial radiation detector : synthetic single crystal diamond detector." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206504.

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Diamond has long been the material of interest for radiotherapy dosimetry due to its high sensitivity, radiation hardness and near tissue equivalency. However natural diamond detector has not become a popular choice because of variability among detectors, high cost and response dependence on dose rate. The recent success in synthesizing single crystal diamond has reignited the interest. Synthetic diamond is highly reproducible in purity and electrical properties, combined with small size, it is a suitable candidate for small field dosimetry. A newly available synthetic single crystal diamond d

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