Tesis sobre el tema "Radiation Effects Analysi"
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CAMPOS, ISIDA M. A. de. "Dosimetria biologica citogenetica em protecao radiologica .Analise de aberracoes cromossomicas radioinduzidas em linfocitos humanos". reponame:Repositório Institucional do IPEN, 1988. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9913.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
SOUZA, MARIA D. C. A. de. "Identificacao, quantificacao e comparacao das substancias quimicas responsaveis pelos aromas da cachaca de alambique e do rum comercial tratados pelo processo de irradiacao". reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11381.
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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
Le, Roux Jacques. "The analysis of radiation-induced micronuclei in peripheral blood lymphocytes for purpose of biological dosimetry". Master's thesis, University of Cape Town, 1995. http://hdl.handle.net/11427/27038.
Texto completoSILVA, MURILO C. da. "Estudo das interacoes dos produtos de radiolise da agua com a miotoxina do veneno de Crotalus durissus terrificus". reponame:Repositório Institucional do IPEN, 2008. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11763.
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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Faraud, Emeric. "Développement et applications de techniques laser impulsionnelles pour l'analyse de défaillance des circuits intégrés". Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14677/document.
Texto completoThe fault location based on laser stimulation are now among the most advanced available techniques. They allow thermal or photoelectric stimulation localized without physical contact.This Ph.D works was devoted to the development and application of techniques using pulsed laser for integrated circuits’ analyses.Material development and investigation of analysis methodologies have been held by the motivation of the MADISON project (Methods of Analysis of Failures by Innovative Dynamic Optical Stimulation), which aims to increase the success rate analysis of complex circuits VLSI by laser stimulation.We used high-performance optical systems including fibered pulsed laser sources to explore the capabilities in terms of analysis by photoelectric laser stimulation. An original study of the Latchup phenomenon showed an improving lateral resolution by using nonlinear absorption process
Walsh, Linda. "Quantifications of the detrimental health effects of ionising radiation". Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/quantifications-of-the-detrimental-healtheffects-of-ionising-radiation(6b69e1c9-9c3d-486a-ac2c-908763b01a3a).html.
Texto completoLOHMANN, TANIA H. O. "Analise da radiossensibilidade de linfocitos perifericos de pacientes com cancer de pele e de individuos sadios por meio do metodo do micronucleo". reponame:Repositório Institucional do IPEN, 1995. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10424.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
Bolin, Jennifer A. "Comparative analysis of selected radiation effects in Medium Earth Orbits". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA341085.
Texto completo"December 1997." Thesis advisor(s): Vicente Garcia, Brij Agrawal. Includes bibliographical references (p. 95-99). Also available online.
Samin, Adib J. Jr. "An analysis of neutron radiation effects on NdFeB permanent magnets". The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1405899609.
Texto completoSanchez, Maria Cristina. "Optical Analysis of a Linear-Array Thermal Radiation Detector for Geostationary Earth Radiation Budget Applications". Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/36536.
Texto completoMaster of Science
CARNEIRO, JANETE C. G. G. "Contribuicao para avaliacao critica da radioprotecao por meio da analise retrospectiva das doses associadas ao trabalho com fontes nao seladas de iodo-131". reponame:Repositório Institucional do IPEN, 1998. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10724.
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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
Allman, Amy Jane. "Effects of UV radiation on Marfan syndrome cells in culture". Virtual Press, 1993. http://liblink.bsu.edu/uhtbin/catkey/879841.
Texto completoDepartment of Biology
MAIO, MIREIA F. "Avaliacao dos efeitos da radiacao ionizante em materiais utilizados em restauracoes dentarias". reponame:Repositório Institucional do IPEN, 2009. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9408.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Bolinder, Richard. "Atmospheric Radiation Effects Study on Avionics : An Analysis of NFF Errors". Thesis, Linköpings universitet, Programvara och system, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-96726.
Texto completoMartinez, Marino Juan 1965. "The analysis of current-mirror MOSFETs for use in radiation environments". Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276910.
Texto completoAn, Ting. "Architectures d'opérateurs numérique auto-contrôlables". Thesis, Paris, ENST, 2014. http://www.theses.fr/2014ENST0054/document.
Texto completoThe steady geometrical reduction of CMOS technology brought a great industry success and affected a lot the human life. However, the integrated circuits (ICs) are shrinking along with new challenges. The design and manufacturing are becoming more complex than before. ICs suffer from two major problems: the parametric variability in materials and limited precision processes, and the sensibility to environment noise. With the increasing failure rate related to these two problems, the future ICs implemented with sub-micron CMOS technology are expected to be less reliable. New reliable ICs are highly desired in critical applications such as avionic, transport and biomedicine. Numerous solutions have been reported in literature covering the enhancement in different abstraction levels (i.e., system level, architecture level and electrical level). Among these solutions, the improvement in architecture level benefits the independence from CMOS technology and the low latency of reaction. Expected architectural solutions will be self-controlled meaning that is able to either automatically indicate the occurrence of faults or directly mask the faults. This thesis is devoted to the reliability analysis methodology and reliability enhancement approaches on architecture level. In particular, the reliability issues in usage time are discussed in details. Digital arithmetic operators for signal processing are taken as studied objects. In addition to the basic operators (i.e., binary adders), coordinate rotation digital computer (CORDIC) and advanced encryption standard (AES) processor are also covered in the scope of this work
Woods, Michael D. "A comparative analysis of radiation effects on silicon, gallium arsenide, and GaInP2/GaAs/Ge triple junction solar cells using a 30 MeV electron linear accelerator". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion/02Sep%5FWoods.pdf.
Texto completoSalih, Isam M. Musa. "Radon in natural waters : Analytical Methods; Correlation to Environmental Parameters; Radiation Dose Estimation; and GIS Applications". Doctoral thesis, Linköpings universitet, Medicinsk radiofysik, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-5221.
Texto completoDeBolt, Frederick C. "Analysis of thermal effects produced by incident laser radiation on a structure /". Online version of thesis, 1991. http://hdl.handle.net/1850/10788.
Texto completoFoo, Kerwyn Yi Min. "Methodological uncertainties in radiotherapy dose-effect analysis". Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/24421.
Texto completoAssis, Thiago Rocha de. "Analysis of transistor sizing and folding effectiveness to mitigate soft errors". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2009. http://hdl.handle.net/10183/31135.
Texto completoIn this work the transistor sizing and folding techniques were evaluated for SET robustness in a 90nm MOSFET technology using a 3D device model. A n-type MOSFET transistor using a 90nm technology predictive profile was modeled and functional behavior compared with PTM level 54 model showing a fit of the device with the PTM. During simulations the modeled device was irradiated in a simulation environment using particles with the profile of sea and space level ions. The radiation effects simulation had indicated that the transistor sizing can be more or less efficient to reduce SET according to the collected charge. It was found that for environments with high energy particle, transistor sizing was not able to reduce soft errors intensity. The use of folding has shown significant reduction of the amplitude and duration of the transient pulse, making this technique very useful to reduce soft errors. For alpha particles and heavy ions the combination of transistor folding and sizing had shown to be an effective combination to enhance the reliability of the circuits. A 6T SRAM cell was modeled to evaluate transistor sizing and folding techniques and the results confirmed the efficiency of folding plus sizing to reduce the effects of radiation.
ANDRADE, LUANA dos S. "Estudo do efeito da radiação ionizante em compostos orgânicos do diesel e do petróleo: hidrocarbonetos, sulfurados e nitrogenados". reponame:Repositório Institucional do IPEN, 2014. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11788.
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Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
EVORA, MARIA C. C. "Estudo do efeito da radiacao sobre a poliamida-6 reciclada". reponame:Repositório Institucional do IPEN, 2001. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10958.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
Souza, Maria Djiliah Camargo Alvarenga de. "Identificação, quantificação e comparação das substâncias químicas responsáveis pelos aromas da cachaça de alambique e do rum comercial tratados pelo processo de irradiação". Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-15052012-104641/.
Texto completoThe irradiation process has being presented as an alternative technique in food preservation. When apply on beverages, radiation is mainly used for malt decontamination or sterilization of musts and had been proposed also to accelerate aging. Some confusion over rum and cachaça identities has arisen due to the internationalization of cachaça. This research aims to identify, quantify and compare the effect of gamma radiation on the aroma of the Brazilian spirit with rum, irradiated and non irradiated, by instrumental and sensory analysis. Results showed that the content of volatile compounds presented strong correlation with the radiation dose (0, 150 and 300Gy) for all the samples. According to Triangle Test for aroma, all the judges could distinguish among non irradiated and irradiated samples (300Gy), aged cachaça from rum and non aged cachaça from rum, but they couldn\'t distinguish aged cachaça from non aged cachaça. Analysis of variance (ANOVA) of the results from the quantitative descriptive analysis showed that non irradiated non aged cachaça and rum were different in their alcohol, vinegar, vanilla, citrus, melon, spice, vegetal and grass except caramel and apple aroma attributes. Non irradiated cachaça and irradiated cachaça (300Gy); and non irradiated rum and irradiated rum (300Gy) were different in their apple, caramel, vinegar, vanilla, citrus, melon, spice, vegetal and grass except alcohol aroma attributes. According to the gas chromatography/olfatometry results, significant difference was found among non irradiated cachaça and rum; non irradiated cachaça and irradiated cachaça (300Gy); and non irradiated rum and irradiated rum (300Gy) when their aromas were compared.
Ebrahimiketilateh, Nasim. "Predicting Tolerance Effects on The Radiation Pattern of Reflectarray Antennas Through Interval Analysis". Doctoral thesis, Università degli studi di Trento, 2018. https://hdl.handle.net/11572/368584.
Texto completoMars, Johan Andre. "The application of nuclear microprobe analysis in materials science". Thesis, Peninsula Technikon, 2003. http://hdl.handle.net/20.500.11838/1513.
Texto completoThe impetus for the refinement and renewal of daily-used products has spurred international interest in investigating the small in homogeneities that might exist in these products. This interest has become an important part in the design philosophy, which is based on structural information gained by the analysis of these products. It is this drive that initiated the study to investigate the simultaneous use of novel nuclear analytical techniques such as micro proton induced X-ray emission( u-PlXE), micro proton induced gamma-ray emission (u-PlGE) and micro proton backscattering (u-RBS) to achieved a broader and yet deeper insight into the fine structure of products. The fundamental underlying physical principles of these techniques are discussed to gain in-depth knowledge on how to them to obtain the desired information. Also determined was the degree of accuracy that could be attained in the application of this knowledge. These principles were evaluated in conjunction with the instrumentation with which the applicability of these techniques could then be further extended. More so is the use of sophisticated software that facilitated the use of both physical and instrumental parameters. After describing the necessary implements to achieve this further know-how, products of industrial origin were investigated to determine in homogeneities that existed in those products and compared those theoretical values. The first application was made to ceramic-based sorption electrodes to be used in the purification of wastewater.
Liang, Li Heng. "Statistical analysis and biological effects of prostate motion in ultrasound image-guided external beam radiotherapy". Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=81359.
Texto completoKohler, Pierre. "Méthodes de caractérisation et analyse de la sensibilité aux effets des radiations de mémoires dynamiques basse consommation pour application spatiale". Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS003.
Texto completoElectronic components, embedded in space applications, are exposed to different types of particles that make up the space radiation environment. The individual or cumulative interaction of these particles with the integrated circuits materials is the source of single-event effects or dose effects that can alter the reliability of the systems by inducing different types of failures at basic electronic functions level and threaten the mission success. In order to predict the event rate during a mission or the components lifetime in a radiative environment, prior to their integration into a space application, it is necessary to model these failures and to characterize the functioning of the components under irradiation.In this context, the objectives of this thesis are the development and implementation of models and methods for characterizing the sensitivity of DDR3 SDRAM memories to the radiation effects for their future integration into memory modules for space applications. The development of a functional and parametric test bench compatible with various irradiation facilities is presented. Results obtained under gamma radiation, are analyzed, and supplemented by sensitivity estimation using X-rays. A characterization campaign under heavy ions, combined with laser testing, allows us to present comparative analysis of the components SEE sensitivity. The complementarity of these
Birgisson, Helgi. "Cancer of the Colon and Rectum : Population Based Survival Analysis and Study on Adverse Effects of Radiation Therapy for Rectal Cancer". Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6824.
Texto completoNISTI, MARCELO B. "Sistema Ambiental aplicado a liberacao de efluentes radioativo liquido". reponame:Repositório Institucional do IPEN, 2009. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9390.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Herrick, Andrea Celeste. "A Comparative Dosimetric Analysis of the Effect of Heterogeneity Corrections Used in Three Treatment Planning Algorithms". University of Toledo Health Science Campus / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=mco1290427283.
Texto completoLi, Yang. "Fragilisation des aciers de cuve irradiés : analyse numérique des mécanismes de plasticité à l’aide de simulations de dynamique des dislocations". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLN031/document.
Texto completoThe interplay between radiation-generated defects and dislocation networks leads to a variety of changes in mechanical properties and results in a detrimental effect on the structural reactor component lifetime. The present PhD work focuses on studying elementary and collective dislocation mechanisms in irradiated iron-based materials, by means of dislocation dynamics (DD) simulations.Evolutions of the radiation-induced defect microstructure are studied first. Namely, the 1D diffusion of interacting prismatic loops is analyzed using the stochastic dislocation dynamics approach, accounting for the elastic forces acting between the loops and the stochastic forces associated with ambient thermal fluctuations. It is found that the interplay between stochastic forces and internal degrees of freedom of loops, in particular the loop reorientation, strongly influences the observed loop dynamics, especially the reaction rates resulting in the elastic confinement of loops.The cross-slip effect on the dislocation/loop interactions is then examined using a specific initial configuration associated with the glide plane change of a screw dislocation source, due to a single and well defined cross-slip event. It is shown that cross-slip significantly affects the effective strength of dislocation/defect interactions and therefore, post-irradiation plastic strain spreading.Lastly, post-irradiation plastic strain spreading is investigated at the grain scale using segment-based dislocation dynamics simulations, accounting for the thermally activated (screw) dislocation slip and cross-slip mechanisms. It is shown that each simulated irradiation condition can be characterized by a specific “Defect-Induced Apparent Straining Temperature shift” (ΔDIAT) level, reflecting the statistical evolutions of the effective dislocation mobility. It is found that the calculated ΔDIAT level closely matches the ductile to brittle transition temperature shift (ΔDBTT) associated with the corresponding, experimentally-observed defect size and number density. This ΔDIAT/ΔDBTT correlation can be explained based on plastic strain spreading arguments
Virmontois, Cédric. "Analyse des effets des déplacements atomiques induits par l’environnement radiatif spatial sur la conception des imageurs CMOS". Thesis, Toulouse, ISAE, 2012. http://www.theses.fr/2012ESAE0009/document.
Texto completoToday, space imaging is an essential tool for sustainable development, research and scientific innovation as well as security and defense. Thanks to their good electro-optic performances and low power consumption, CMOS image sensors are serious candidates to equip future space instruments. However, it is important to know and understand the behavior of this imager technology when it faces the space radiation environment which could damage devices performances. Many previous studies have been focused on ionizing effects in CMOS imagers, showing their hardness and several hardening-by-design techniques against such radiations. The conclusions of these works emphasized the need to study non-ionizing effects which have become a major issue in the last generation of CMOS image sensors. Therefore, this research work focuses on non-ionizing effects in CMOS image sensors. These effects, also called displacement damage, are investigated on a large number of CMOS imagers and test structures. These devices are designed using several CMOS processes and using design rule changes in order to observe possible common behaviors in CMOS technology. Similarities have been shown between proton and neutron irradiations using current-voltage characteristics and deep level transient spectroscopy. These results emphasize the relevance of neutron irradiations for an accurate study of the non-ionizing effects. Then, displacement damage induced dark current increase as well as the associated random telegraph signal are measured and modeled. Common evaluation parameters to investigate displacement damage are found, allowing imager behavior prediction in space radiation environment. Finally, specific methods and hardening-by-design techniques to mitigate displacement damage are proposed
PEREIRA, MARCO A. dos S. "Estudo da acao da radiacao gama de sup(60)Co sobre Salmonella poona, Escherichia coli e Alicyclobacillus Acidoterrestris em polpa de manga congelada". reponame:Repositório Institucional do IPEN, 2009. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9425.
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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
SOUZA, FABIO R. de. "Analise do grau de resistencia a flexao de femures de ratos irradiados com laser de dioxido de carbono". reponame:Repositório Institucional do IPEN, 2002. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11526.
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Dissertacao (Mestrado Profissionalizante em Lasers em Odontologia)
IPEN/D-MPLO
Intituto de Pesquisas Energeticas e Nucleares, IPEN/CNEN-SP; Faculdade de Odontologia, Universidade de Sao Paulo
Gupta, Viyas. "Analysis of single event radiation effects and fault mechanisms in SRAM, FRAM and NAND Flash : application to the MTCube nanosatellite project". Thesis, Montpellier, 2017. http://www.theses.fr/2017MONTS087/document.
Texto completoSpace radiation is a harsh environment affecting all electronic devices used on spacecraft, despite the presence of Earth’s protective magnetic field in Low Earth Orbit (LEO). Although particles inducing total ionizing dose (TID) can be effectively shielded against in LEO, particles responsible for Single Event Effects (SEEs) remain an issue for the reliability of electronics. This is particularly of concern considering the increasing use of Commercial-Off-The-Shelf (COTS) components, not designed for space applications. In the frame of this thesis, the SEE response of three commercial memory types are explored: SRAM, FRAM and NAND Flash. Based on SEE test results, the possible fault mechanisms induced by SEE particles on those devices are analysed. In order to study and compare the devices’ response with actual in-orbit measurements, the RES (Radiation Effect Study) science experiment was developed and is presented. The RES experiment will be the payload of the MTCube (Memory Test CubeSat) nanosatellite, which is being developed at the University of Montpellier as a joint project between the University Space Center (CSU Montpellier-Nîmes), as well as the LIRMM and IES laboratories. MTCube is financed by the European Space Agency (ESA)
Romero, Faviola. "In-orbit performance analysis of the image sensors from Pleiades mission". Thesis, Luleå tekniska universitet, Rymdteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-66934.
Texto completoGUIMARAES, FILHO RUBENS. "Efeitos da radiacao do laser de dioxido de carbono ( COsub(2) ) no tecido osseo: analise em microscopia optica e microscopia eletronica de varredura". reponame:Repositório Institucional do IPEN, 2001. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10862.
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Dissertacao (Mestrado Profissionalizante em Lasers em Odontologia)
IPEN/D-MPLO
Intituto de Pesquisas Energeticas e Nucleares, IPEN/CNEN-SP; Faculdade de Odontologia, Universidade de Sao Paulo
Wase, Nishikant V. "Proteomic and metabolomic analysis of the effects of UV-A radiation on the cyanobacterium nostoc punctiforme ATCC 29133". Thesis, University of Sheffield, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.557618.
Texto completoChoi, Hong Kyu. "Analysis and modeling of the long-term performance of amorphous photovoltaic arrays". Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184835.
Texto completoFicuciello, Antonio. "Analyse des effets acoustiques à haute fréquence/haute intensité sur l'injection coaxiale : application aux moteurs-fusées". Thesis, Normandie, 2017. http://www.theses.fr/2017NORMR106/document.
Texto completoThe context of this work relies to high frequency combustion instabilities in Liquid Rocket Engines (LRE). The present research focuses on the effects of high amplitude transverse acoustic fields on non-reactive coaxial injection. The acoustic response of injection domes is found to be dependent on the local properties of the acoustic field in the injection cavity. The modification of the atomization process, induced by the acoustic field, has been analyzed in single and multi-injection configurations. Experiments were performed from low to high Weber number atomization regimes. Three phenomena are observed: jet flattening, improvement of the atomization process and deviation. The combination of these phenomena in multi-injection configurations leads to a droplet clustering phenomenon. In the presence of combustion, such a clustering could lead to non-uniform heat release rate which can trigger or sustain combustion instabilities. A theoretical model based on non-linear acoustics has been developed, providing general expressions of radiation pressure and resulting radiation force, for spherical and cylindrical objects in standing and progressive wave field. The model has been successfully used to interpret and quantify experimental observations in liquid/gas, trans-critical/super-critical and gas/gas configurations and showed that the Helmholtz number α characterizing the acoustic field and the density ratio η characterizing the two media are two parameters of importance. The major conclusions are that the observed phenomena can be interpreted as resulting from non-linear acoustics, the key feature being the density ratio. It is claimed that the layer separating the two media, seen as an interface, does not need to be restricted only to a liquid/gas interface
FERRETO, HELIO F. R. "Estudo da sintese copolimero olefínico à base de politetrafluoroetileno (PTFE) por meio da enxertia induzida por radiação gama". reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11420.
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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
Kim, Julian. "EFFECT OF RADIATION THERAPY ON SURVIVAL IN PATIENTS WITH RESECTED MERKEL CELL CARCINOMA: A POPULATION-BASED ANALYSIS". Case Western Reserve University School of Graduate Studies / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1278471897.
Texto completoChapa, Matthew R. "Analysis of 3D silicon pixel vertex detector damage effects due to radiation levels present in the LHC at CERN". Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76932.
Texto completo"June 2012." Cataloged from PDF version of thesis.
Includes bibliographical references (p. 45).
In high energy physics experiments, very high precision tracking of charged particles is needed. Solid state detectors achieve the high precision necessary to provide track and vertex reconstruction of the particles that traverse them, but tracking performance begins to deteriorate at fluxes of radiation around 10¹⁴ - 10¹⁵ hadrons/cm 2. These radiation levels are congruent with those experienced by the ATLAS pixel detector, the inner most part of the ATLAS tracking system, which is vital to track and vertex reconstruction. During the planned shut-down of the Large Hadron Collider (LHC) in 2013-2014, the energy and luminosity of the LHC will both be increased. The current pixel detector has begun to suffer deterioration of performance, so the ATLAS Collaboration has initiated an upgrade to take place during the scheduled shut-down beginning in 2013, the Insertable B-Layer (IBL). The IBL will be assembled and placed in between a reduced diameter beam pipe and the current pixel detector, acting as the fourth layer of the ATLAS inner detector. The pixel sensors of the IBL will have to sustain a radiation dose of 5 * 10¹⁵neq/cm². Two sensor technologies are being considered for the IBL upgrade: planar n-in-p silicon pixel sensors and 3D double sided n-in-p pixel sensors. Research of both these technologies is being done by the IFAE in collaboration with CNM-Barcelona. To cope with the increased data rate after the LHC upgrade, a new front-end chip has also been produced, the FE-14 front-end chip. Test results and data analysis from five different 3D pixel sensor devices, all fabricated at CNM-Barcelona were done. Evaluation of these technologies and the test results of irradiated 3D pixel sensor devices are carried out in this thesis.
by Matthew R. Chapa.
S.B.
OLIVEIRA, JOSELENE de. "Determinacao dos niveis de radioatividade natural em aguas utilizadas para abastecimento publico no Estado de Sao Paulo .Vol. 2". reponame:Repositório Institucional do IPEN, 1998. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10699.
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Tese (Doutoramento) - IPEN Apendices
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
Bernier, Marie-Odile. "Mise en place d'une cohorte d'enfants exposés au scanner et analyse du risque de cancer radio-induit". Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066744/document.
Texto completoMedical diagnostic exposure to ionizing radiation represents about 40% of the total annual radiation exposure in France. The CT scans, which represent only 5% of the total number of X-rays examinations, account for half of the total collective dose associated with medical diagnostic exposure. However, its use continues to grow, including in children, for whom the radio sensitivity is known to be greater than in adults. Several recent studies support an increased risk of leukemia and brain tumors after exposure to CT scan in childhood. A national multicenter cohort was set up at the IRSN since 2009 including 108 137 children subjected to at least one CT scans before the age of 10 during the 2000 to 2013 period in 23 French University hospital’s pediatric radiology departments. Children's exposure was assessed based on radiological protocols. It was observed high variability of doses according to the participant departments, reflecting the need for protocol optimization. Moreover, children with predisposing factor for studied cancers represented 3% of the study population, a percentage well above that observed in the general population. The linkage of the cohort with the National Register of pediatric cancers identified 106 incident cases of cancer in the cohort, 22 brain tumors and 17 leukemias. For children without predisposing factor, it was observed a non-significant excess risk of cancer according to the received dose, similar to that observed for the whole study population. For children with predisposing factor to cancer, the risk decreased without reaching significance, possibly linked to earlier non-cancer mortality in this group and then to a lower risk to develop later radiation induced cancer. The European project EPI-CT, which includes 9 national cohorts (including the French cohort), will include more than one million children and then will bring further results on this topic
Andersson, Lucas. "Shadow effects in open cross-sections : An analysis of steel temperatures with COMSOL Multiphysics, TASEF and Eurocode". Thesis, Luleå tekniska universitet, Byggkonstruktion och brand, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-70086.
Texto completoCOELHO, JOAQUIM M. S. "Serrapilheira aplicada como biomonitor na avaliação do bosque urbano do Instituto de Pesquisas Energéticas e Nucleares, São Paulo, SP". reponame:Repositório Institucional do IPEN, 2012. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10108.
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Dissertação (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
BLAY, CLAUDIA C. "Analise comparativa da reducao bacteriana com irradiacao do laser Er:YAG ou ponta montada em alta rotacao apos remocao de tecido cariado em dentina: estudo in anima nobile". reponame:Repositório Institucional do IPEN, 2001. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10940.
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Dissertacao (Mestrado Profissionalizante em Lasers em Odontologia)
IPEN/D-MPLO
Intituto de Pesquisas Energeticas e Nucleares, IPEN/CNEN-SP; Faculdade de Odontologia, Universidade de Sao Paulo
REGO, MARIA E. de M. "Gestão dos rejeitos radioativos gerados na produção de 99Mo por fissão nuclear". reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10584.
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Dissertação (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP