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Rozprawy doktorskie na temat „Space radiations”

Autor: Grafiati

Data publikacji: 16 listopada 2024

Data aktualizacji: 31 lipca 2025

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1

Gonon, Géraldine. "Space radiation-induced bystander effect : kinetics of biologic responses, mechanisms, and significance of secondary radiations." Phd thesis, Université de Franche-Comté, 2011. http://tel.archives-ouvertes.fr/tel-00987717.

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Widespread evidence indicates that exposure of cell cultures to α particles results in significant biological changes in both the irradiated and non-irradiated bystander cells in the population. The induction of non-targeted biological responses in cell cultures exposed to low fluences of high charge (Z) and high energy (E) particles is relevant to estimates of the health risks of space radiation and to radiotherapy. Here, we investigated the mechanisms underlying the induction of stressful effects in confluent normal human fibroblast cultures exposed to low fluences of 1000 MeV/u iron ions (l

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Restier-Verlet, Juliette. "Biologie des radiations spatiales : composantes radiatives spécifiques, effets moléculaires et contremesures chimiques." Electronic Thesis or Diss., Lyon 1, 2024. http://www.theses.fr/2024LYO10307.

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L'exposition aux radiations ionisantes constitue l'un des risques majeurs pour les astronautes dans le cadre de l’exploration spatiale. Cependant, afin de quantifier de manière fiable les risques radiobiologiques, les sources de radiations spatiales doivent être rigoureusement caractérisées et les tissus à risque bien identifiés. A travers les projets en radiobiologie spatiale de l’UMR 1296, quatre axes de recherches ont été privilégiés. Nous avons montré que le corps des astronautes est soumis à la fois à un bain de rayonnement de forte énergie impactant les tissus profonds (ex : le cœur, l’o

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Jouni, Ali. "Space radiation effects on CMOS single photon avalanche diodes (SPADs)." Electronic Thesis or Diss., Toulouse, ISAE, 2024. http://www.theses.fr/2024ESAE0012.

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Le sujet de cette thèse traite des effets des radiations spatiales sur des détecteurs CMOS à avalanches, et particulièrement sur les dispositifs SPADs (pour Single Photon Avalanche Diode en anglais, ou photodiode à avalanche à photon unique). Ces photodiodes présentent un gain interne presque infini et sont donc sensibles à des très faibles conditions de lumières. Ainsi, avec en plus une excellente résolution temporelle, ces capteurs peuvent être très intéressant pour des applications spatiales nécessitant des mesures de temps de vols, comme la topographie d’objets célestes ou les Rendez-vous

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Lopes, Jeremy. "Design of an Innovative GALS (Globally Asynchronous Locally Synchronous), Non-Volatile Integrated Circuit for Space Applications." Thesis, Montpellier, 2017. http://www.theses.fr/2017MONTS052/document.

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Aujourd'hui, il existe plusieurs façons de développer des circuits microélectroniques adaptés aux applications spatiales qui répondent aux contraintes sévères de l'immunité contre les radiations, que ce soit en termes de technique de conception ou de processus de fabrication. Le but de ce doctorat est d'une part de combiner plusieurs techniques nouvelles de microélectronique pour concevoir des architectures adaptées à ce type d'application et d'autre part, d'incorporer des composants magnétiques non-volatiles intrinsèquement robustes aux rayonnements. Un tel couplage serait tout à fait novateu

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Ladaci, Ayoub. "Rare earth doped optical fibers and amplifiers for space applications." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSES027/document.

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Les fibres dopées aux terres rares (REDFs) représentent un composant clef dans la fabrication de sources laser et d’amplificateurs optiques (REDFAs). Leurs hautes performances rendent cette technologie particulièrement attractive pour les applications spatiales en tant que partie active des gyroscopes à fibres optiques, pour le transfert de données et les applications LIDARS. Cependant, la grande sensibilité de ces fibres actives limite l’intégration des REDFAs au sein des missions spatiales. De nombreuses études ont été menées pour dépasser ces limitations et différentes techniques de mitigat

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6

Duchez, Jean-Bernard. "Étude du noircissement dans les fibres optiques dopées Ytterbium : interaction entre photo- et radio-noircissement." Thesis, Nice, 2015. http://www.theses.fr/2015NICE4029.

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Cette thèse traite des dégradations induites par la pompe (photo-noircissement) et les radiations ionisantes externes (radio-noircissement) dans les fibres optiques en silice dopées ytterbium (FDY) utilisées en environnement sévère. Au travers de caractérisations expérimentales et de modélisations inédites, elle analyse leur interaction et en tire les conséquences quant à la tenue des FDY aux radiations sous pompe. La première partie porte sur l’identification des défauts induits (centres colorés) et leurs mécanismes de formation/guérison. Elle s’appuie sur un ensemble de caractérisations post

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7

Antonsanti, Aubin. "Space radiation induced dark current in advanced CMOS image sensors." Electronic Thesis or Diss., Toulouse, ISAE, 2025. http://www.theses.fr/2025ESAE0010.

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Les systèmes d'imagerie sont indispensables aux missions spatiales, permettant des applications critiques telles que l'observation de la Terre, l'exploration planétaire et la recherche astronomique. Bien que les dispositifs à transfert de charge (CCDs) aient traditionnellement dominé l’imagerie spatiale en raison de leur haute sensibilité et de leur qualité d’image exceptionnelle, les capteurs d’image CMOS émergent rapidement comme une alternative très solide. Les capteurs CMOS offrent des avantages distincts, notamment une consommation d’énergie réduite, des vitesses de lecture rapides, des f

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8

Pedroza, Guillaume. "Evaluation de la fiabilité de composants optoélectroniques pour des applications spatiales : apport des caractérisations et des modélisations électro-optiques." Thesis, Bordeaux 1, 2011. http://www.theses.fr/2011BOR14470/document.

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Ce mémoire présente les résultats de travaux portant sur l’analyse de la fiabilité de diodes laser de pompe émettant à 980 nm et de photodiodes InGaAs pour des applications spatiales. La sévérité de l’environnement spatial (vide, radiations, contraintes thermomécaniques) impose d’évaluer la robustesse de ces deux technologies qui ont été spécialement conçues pour des applications de télécommunications sous-marines. L’objectif de ce mémoire est donc de proposer une méthodologie d’évaluation de la fiabilité en s’appuyant la caractérisation électro-optique, l’analyse physico-chimique et la modéli

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9

Bourmancé, Lucas. "Caractérisation de l'influence des radiations spatiales et des saumures complexes sur la préservation de l'enveloppe cellulaire de Halobacterium salinarum en tant que biosignature de la vie ancienne." Electronic Thesis or Diss., Paris, Muséum national d'histoire naturelle, 2025. http://www.theses.fr/2025MNHN0001.

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Les environnements hypersalins, omniprésents dans le système solaire (Terre, Mars, Encelade, Europe), possèdent des propriétés uniques de préservation. Ces environnements, sous l'effet de l'évaporation, favorisent la formation d'évaporites et de cristaux d'halite (NaCl). Des cellules d'archées halophiles telles que Halobacterium ont été isolées et préservées dans des inclusions fluides de cristaux d'halite terrestre. Ces inclusions pourraient ainsi constituer des réservoirs pour des biosignatures anciennes. L'enveloppe cellulaire des haloarchées représente une cible prometteuse en tant que bio

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10

Chen, Si. "Conception d’ASICs Mixtes Durcis aux Radiations pour Observatoires Spatiaux." Thesis, Université de Paris (2019-....), 2019. http://www.theses.fr/2019UNIP7051.

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Le sujet de ma thèse est la conception d’ASICs (Application-Specific Integrated Circuits) mixtes durcis aux radiations pour observatoires spatiaux. La thèse se déroule dans le contexte d'un futur observatoire spatial à rayons X de l’ESA, se nomme « Advanced Telescope for High ENergy Astrophysics (ATHENA) ». Les ASICs développés appartiennent à l'un des deux instruments scientifiques de cet observatoire, s’appelle « X-ray Integral Field Unit (X-IFU) », et sont dédiés à l'un des sous-systèmes de l'instrument X-IFU, le WFEE (Warm Front End Electronics).Le WFEE est un système électronique mixte co

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11

Lalucaa, Valérian. "Etude des effets singuliers produits par les particules énergétiques chargées de l’environnement radiatif spatial sur les capteurs d’images CMOS." Thesis, Toulouse, ISAE, 2013. http://www.theses.fr/2013ESAE0042/document.

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Ce mémoire de thèse traite des effets singuliers produits par les milieux radiatifs sur les capteurs d’images CMOS. Le travail se concentre sur les effets provoqués par les ions lourds sur les capteurs utilisant des pixels 3T à photodiode standard et des pixels 4T et 5T à photodiodes pincées. Dans un premier temps, l’étude se concentre sur l’environnement spatial et l’architecture des capteurs. La comparaison avec la littérature met en évidence les effets les plus critiques sur les capteurs : le SEL et les SET. Les capteurs testés expérimentalement valident les travaux théoriques. Les SET sont

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12

Belloir, Jean-Marc. "Spectroscopie du courant d’obscurité induit par les effets de déplacement atomique des radiations spatiales et nucléaires dans les capteurs d’images CMOS à photodiode pincée." Thesis, Toulouse, ISAE, 2016. http://www.theses.fr/2016ESAE0029/document.

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Les imageurs CMOS représentent un outil d’avenir pour de nombreuses applications scientifiques de haut vol, tellesque l’observation spatiale ou les expériences nucléaires. En effet, ces imageurs ont vu leurs performancesdémultipliées ces dernières années grâce aux avancées incessantes de la microélectronique, et présentent aussi desavantages indéniables qui les destinent à remplacer les CCDs dans les futurs instruments spatiaux. Toutefois, enenvironnement spatial ou nucléaire, ces imageurs doivent faire face aux attaques répétées de particules pouvantrapidement dégrader leurs performances élec

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13

Wahle, Peter Joseph 1961. "Radiation effects on power MOSFETs under simulated space radiation conditions." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277024.

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Application of power MOSFETs in spaceborne power converters was simulated by exposing devices to low-dose-rate ionizing radiation. Both radiation-hardened and nonhardened devices were tested with constant and switched gate biases during irradiation. In addition, some of the devices were under load. The threshold-voltage shifts were strongly bias dependent. The threshold-voltage shift of the nonhardened parts was approximately dose-rate independent, while the hardened parts exhibited significant dose-rate dependence. A pre-anneal dose-rate dependence was found for the interface-state buildup of

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14

Bayer, Ozgur. "Simulation Of Refrigerated Space With Radiation." Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12610454/index.pdf.

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Performance of a refrigerator can be characterized with its ability to maintain a preset low temperature by spending the least amount of electricity. It is important to understand natural convection inside a refrigerator for optimizing its design for performance. Computational Fluid Dynamics (CFD) together with experiments is a very powerful tool for visualizing flow and temperature fields that are essential for understanding a phenomenon that involves both fluid and heat flow. In this aspect, simulations are performed for compartment and total refrigerator models using the package program Flu

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15

Amutkan, 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.

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Space radiation is significantly harmful to electronic Components. The operating time, duration and orbit of the space mission are affected by the characteristic of the radiation environment. The aging and the performance of the electronic components are modified by radiation. The performance of the space systems such as electronic units, sensors, power and power subsystem units, batteries, payload equipments, communication units, remote sensing instruments, data handling units, externally located units, and propulsion subsystem units is determined by the properly functioning of various electr

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16

Rosenberg, Max. "Comparative Analysis of Electrodynamic Toroidal Radiation Shielding Configurations." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1963.

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Beyond the protective confines of Earth's atmosphere and magnetosphere, spacecraft are subject to constant bombardment by high-energy charged particles originating from our Sun in the form of Solar Particle Events (SPEs), and from outside the solar system in the form of Galactic Cosmic Rays (GCRs). The harm these particles do can be reduced or mitigated outright through radiation shielding. Because protons and other charged particles comprise most of these radiation particles, strong magnetic fields could be generated around spacecraft to deflect incoming charged radiation particles. This thes

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17

GIRAUDO, MARTINA. "Passive shielding of space radiation for human exploration missions - Simulations and Radiation Tests." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2711122.

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Space radiation is one of the main showstoppers for human exploration of deep space. When leaving the protection provided by Earth’s atmosphere and magnetic field, the astronaut crew find themselves immersed into a complex radiation field, originated by the interaction of different high-energy radiation sources with the spacecraft’s walls, and characterized by many particle species with a broad range of energies. The biological effects of the long-term radiation exposure is largely uncertain and could give rise not only to late solid cancers and leukemia, but also to early effects to ca

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18

Norman, Ryan Bradley. "Resonance production and nuclear fragmentation for space radiation." Worcester, Mass. : Worcester Polytechnic Institute, 2008. http://www.wpi.edu/Pubs/ETD/Available/etd-042208-131402/.

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Dissertation (Ph.D.)--Worcester Polytechnic Institute.<br>Keywords: nuclear physics, particle physics, phyiscs, resonance, nuyclear fragmentation, nucleon-nucleon interactions, radiation shileding, heavy-ion physics, space radiation. Includes bibliographical references (leaves 163-141).

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Ko, Stephen C. "Development of Radiation Shielding Materials for Space Applications." W&M ScholarWorks, 1997. https://scholarworks.wm.edu/etd/1539626106.

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Snell, Holly. "Modelling and testing the effects of space radiation on space-borne electronic components." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/28110.

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Outer space is a hazardous environment for satellites as they are continuously exposed to harsh space radiation in the form of cosmic rays and high-energy electrically charged particles (protons, electrons and alpha particles). Mission-critical electronic components are especially susceptible to space radiation as high-velocity charged particle impacts on molecular-sized circuitry can cause significant device upsets or permanent damage, compromising a satellite's functional integrity. In order to mitigate this radiation hazard, electronic components are carefully selected and tested prior to d

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Ruekberg, Jared Allen. "STRUCTURAL MICROMETEOROID AND RADIATION SHIELDING FOR INTERPLANETARY SPACECRAFT." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1401.

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This paper focused on two significant space forces that can affect the success of a spacecraft: the radiation and micrometeoroid environments. Both are looked at in the context of the region of space between Earth and Mars. The goal was create reference environments, to provide context to results of environmental modeling, and to provide recommendations to assist in early design decisions of interplanetary spacecraft. The radiation section of this report used NASA's OLTARIS program to generate data for analysis. The area of focus was on the radiation effects for crewed missions, therefore effe

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Reed, Martin. "The Free Space Radiation Mode method in integrated optics." Thesis, University of Nottingham, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263413.

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Rushton, Joseph Edward. "Radiation damage in CMOS image sensors for space applications." Thesis, Open University, 2018. http://oro.open.ac.uk/53005/.

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The space radiation environment is damaging to silicon devices, such as Complementary Metal Oxide Semiconductor (CMOS) image sensors, affecting their performance over time or causing total failure. The first part of this work investigates a Charge Coupled Device (CCD) style CMOS image sensor designed for TDI (Time Delay and Integration) mode imaging, a mode commonly used for Earth observation. Damage from high energy protons in the space environment decreases the Charge Transfer Efficiency (CTE) and increases the dark current of such devices. Experimental work on proton damaged devices is pres

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White, Ryan D. "A high-altitude nuclear environment simulation." Thesis, Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/2315.

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Marques, Greicy Costa. "Etude de la fiabilité des algorithmes self-convergeants face aux soft-erreurs." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENT086/document.

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Cette thèse est consacrée à l'étude de la robustesse/sensibilité d'un algorithme auto-convergeant face aux SEU's. Ces phénomènes appelés aussi bit-flips qui se traduit par le basculement intempestif du contenu d'un élément mémoire comme conséquence de l'ionisation produite par le passage d'une particule chargée avec le matériel. Cette étude pourra avoir un impact important vu la conjoncture de miniaturisation qui permettra bientôt de disposer de circuits avec des centaines à des milliers de cœurs de traitement sur une seule puce, pour cela il faudra faire les cœurs communiquer de manière effic

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Srikasem, Suthum. "Radiation from an aperture into an anisotropic plasma half-space." Ohio : Ohio University, 1993. http://www.ohiolink.edu/etd/view.cgi?ohiou1173761928.

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Hu, Yueyuan [Verfasser]. "Effects of space-relevant radiation on pre-osteoblasts / Yueyuan Hu." Bonn : Universitäts- und Landesbibliothek Bonn, 2014. http://d-nb.info/1048616096/34.

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Taylor, Paul Alan. "Proton radiation effects on space solar cell structures and materials." Thesis, University of Southampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242506.

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Virdee, Hira Singh. "Radiation pressure torque and computational attitude modelling of space debris." Thesis, University College London (University of London), 2017. http://discovery.ucl.ac.uk/1571169/.

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Human space activity in the past 50 years has led to a plethora of man-made space debris which pose an imminent threat to global space operations. The current models of space debris orbits are not sufficient for detailed orbit prediction or for accurate tracking. This uncertainty manifests itself in Conjunction Analysis (CA) with active spacecraft, which leads to excessive orbital manoeuvres which are both expensive and reduce the lifetime of satellites. Advances in orbit modelling will lead to better prediction of debris orbits and reduce the need for collision avoidance manoeuvres, as well a

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Ruhlmann, Sébastien. "The FLARE Suit: A protection against solar radiation in space." Thesis, KTH, Rymdteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-261181.

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FLARE Suit är en enhet som används för att skydda astronauter från intensiv partikelstrålning när de reser ut ur magnetosfären på framtida Deep Space-uppdrag. Denna dräkt kan skydda mot solpartiklar som på grund av sin höga densitet kan orsaka akut strålningssjuka och leda till överdriven förstöring av inre organ (mag- tarmkanalen, nervsystemet, blodbildande benmärg) och i värsta fall till döden. Dessa symtom blir mycket starkare utanför jordens magnetosfär, vid månen eller på väg till Mars. För tillfället studeras FLARE-dräkten som ett komplement inombords till det befintliga skyddet från r

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Ersmark, Tore. "Geant4 Monte Carlo Simulations of the International Space Station Radiation Environment." Doctoral thesis, Stockholm, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4007.

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Van, der Horst Johannes Gerhardus. "Radiation tolerant implementation of a soft-core processor for space applications." Thesis, Stellenbosch : University of Stellenbosch, 2007. http://hdl.handle.net/10019.1/1857.

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Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2007.<br>The availability of high density FPGAs has made the use of soft-core processors an attractive proposition for the low volume space market. Soft-core processors combine the power of programmable logic with the ease of use of a conventional processor to provide a highly customisable solution. However, the SRAM FPGAs used as implementation platform are especially susceptable to radiation induced single event upsets, due to the sensitivity of their configuration memory. To safely use these processors

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Oliveri, Roberto. "Applications of space-time symmetries to black holes and gravitational radiation." Doctoral thesis, Universite Libre de Bruxelles, 2018. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/276311.

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This thesis deals with two classes of space-time symmetries: emergent symmetries in the near-horizon region of rapidly rotating Kerr black holes and residual gauge symmetries. The main aim of the thesis is to investigate consequences and effects of these symmetries on black holes and gravitational radiation. The first class of symmetries is exploited to address questions of astrophysical relevance for force-free magnetospheres, thin accretion discs, and strong magnetic fields around Kerr black holes. We investigate how the dynamics of electromagnetic and matter fields is constrained by global

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Bosser, Alexandre Louis. "Single-event effects from space and atmospheric radiation in memory components." Thesis, Montpellier, 2017. http://www.theses.fr/2017MONTS085/document.

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Les composants mémoires sont omniprésents en électronique : ils sont utilisés pour stocker des données, et sont présents dans tous les champs d’application - industriel, automobile, aérospatial, grand public et télécommunications, entre autres. Les technologies mémoires ont connu une évolution constante depuis la création de la première mémoire vive statique (Static Random-Access Memory, SRAM) à la fin des années 60. Les besoins toujours plus importants en termes de performance, de capacité et d’économie d’énergie poussent à une miniaturisation constante de ces composants : les mémoires modern

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Daldorff, Lars Kristen Selberg. "Numerical Simulation as a Tool for Studying Waves and Radiation in Space." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-9517.

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Gowens, Eric Christopher. "Two dimensional radiation sensor development for use in space bound reconfigurable computers." Thesis, Montana State University, 2011. http://etd.lib.montana.edu/etd/2011/gowens/GowensE0511.pdf.

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Space bound computers are exposed to damaging radiation once they leave the safety of the Earth's atmosphere, which is a significant hindrance to the development of digital space systems. While most digital systems can be radiation hardened, the development time in making them less susceptible to radiation keeps the hardened systems behind the cutting edge. A better solution for this problem is to provide an early warning that a digital microchip may have been struck by radiation in the form of a spatially aware sensor. The focus of this thesis is the design, fabrication, and testing of a two-

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Wilcox, Edward. "Silicon-germanium devices and circuits for cryogenic and high-radiation space environments." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33850.

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This work represents several years' research into the field of radiation hardening by design. The unique characteristics of a SiGe HBT, described in Chapter 1, make it ideally suitable for use in extreme environment applications. Chapter 2 describes the total ionizing dose effects experienced by a SiGe HBT, particularly those experienced on an Earth-orbital or lunar-surface mission. In addition, the effects of total dose are evaluated on passive devices. As opposed to the TID-hardness of SiGe transistors, a clear vulnerability to single-event effects does exist. This field is divided into

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Shea, Patrick. "DESIGN AND MODELING OF RADIATION HARDENED LDMOSFET FOR SPACE CRAFT POWER SYSTEMS." Master's thesis, University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2822.

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NASA missions require innovative power electronics system and component solutions with long life capability, high radiation tolerance, low mass and volume, and high reliability in space environments. Presently vertical double-diffused MOSFETs (VDMOS) are the most widely used power switching device for space power systems. It is proposed that a new lateral double-diffused MOSFET (LDMOS) designed at UCF can offer improvements in total dose and single event radiation hardness, switching performance, development and manufacturing costs, and total mass of power electronics systems. Availability of

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Underwood, Craig Ian. "Single event effects in commercial memory devices in the space radiation environment." Thesis, University of Surrey, 1996. http://epubs.surrey.ac.uk/743/.

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Wang, Jiong. "Linear theory of radiation from large space structures with induced AC current." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/35939.

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Lumpkins, Sarah B. "Space radiation-induced bystander signaling in 2D and 3D skin tissue models." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/70817.

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Thesis (Sc. D.)--Harvard-MIT Program in Health Sciences and Technology, 2012.<br>Page 157 blank. Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 145-156).<br>Space radiation poses a significant hazard to astronauts on long-duration missions, and the low fluences of charged particles characteristic of this field suggest that bystander effects, the phenomenon in which a greater number of cells exhibit damage than expected based on the number of cells traversed by radiation, could be significant contributors to overall cell damage. The purpose of this thesis was t

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Tysk, Carl, Elvira Brenner, and Anton Olsson. "Construction of a Geiger counter : For cosmic radiation in near space conditions." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-353023.

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Gehrke, Nathan Ryan. "Utilizing Permanent On-Board Water Storage for Efficient Deep Space Radiation Shielding." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1933.

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As space technologies continue to develop rapidly, there is a common desire to launch astronauts beyond the ISS to return to the Moon and put human footsteps on Mars. One of the largest hurdles that still needs to be addressed is the protection of astronauts from the radiation environment seen in deep space. The most effective way to defend against radiation is increasing the thickness of the shield, however this is limited by strict mass requirements. In order to increase the thickness of the shield, it is beneficial to make mission critical items double as shielding material. The human rated

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Bhattacharya, Yajnavalkya. "Analysis of a solar occultation experiment from the space shuttle Columbia." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0030/MQ27334.pdf.

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Tapia, S. "Ground Observations of Polarimetric Standards for the Hubble Space Telescope." Steward Observatory, The University of Arizona (Tucson, Arizona), 1988. http://hdl.handle.net/10150/623884.

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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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Larsson, Oscar. "Analysis of the Radiation Environment on Board the International Space Station Using Data from the SilEye-3/Alteino Experiment." Doctoral thesis, KTH, Partikel- och astropartikelfysik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-145339.

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This thesis presents an analysis of the radiation environment on board the Russian section of the International Space Station (ISS) using data from the SilEye-3/Alteino experiment. As part of the analysis the efficiency and response of the SilEye-3/Alteino detector was studied. The relative nuclear abundance is generally in agreement with expected results. The presence of odd Z nuclei is significantly increased when compared with measurements outside the ISS. However, in ISS-y (Starboard-Ports) and z (Nadir-Zenith) directions an underabundance of carbon and oxygen nuclei is seen, whereasin x (

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Dow, K. L., M. V. Sykes, F. J. Low, and F. Vilas. "Detection of Earth Orbiting Objects by IRAS." Steward Observatory, The University of Arizona (Tucson, Arizona), 1989. http://hdl.handle.net/10150/623903.

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A systematic examination of 1836 images of the sky constructed from scans made by the Infrared Astronomical Satellite has resulted in the detection of 466 objects which are shown to be in Earth orbit. Analysis of the spatial and size distribution and thermal properties of these objects, which may include payloads, rocket bodies and debris particles, is being conducted as one step in a feasibility study for space -based debris detection technologies.

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Lizarrage, Adrian, Brittany Lynn, and Jeremiah Lange. "Remote Imaging System Acquisition (RISA) Space Environment Multispectral Imager." International Foundation for Telemetering, 2010. http://hdl.handle.net/10150/604306.

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ITC/USA 2010 Conference Proceedings / The Forty-Sixth Annual International Telemetering Conference and Technical Exhibition / October 25-28, 2010 / Town and Country Resort & Convention Center, San Diego, California<br>The purpose of the NASA Remote Imaging System Acquisition space camera prototype is to integrate multiple optical instruments into a small wireless system using radiation tolerant components. This stage of prototyping was the development of a broadband variable-focus camera that can transmit data wirelessly. A liquid lens in conjunction with a cerium doped double gauss eliminates

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McMahon, Michael, Albert Rhoads, Frank Winter, and Graham Pierson. "A VERSATILE PROGRAMMABLE FUNCTION RF ASIC FOR SPACE-BASED RF SYSTEMS." International Foundation for Telemetering, 1999. http://hdl.handle.net/10150/608302.

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International Telemetering Conference Proceedings / October 25-28, 1999 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>A programmable RF ASIC is described which provides most of the RF functions within a next generation S-band transponder for space applications. The unique 18-contact LCC device can be programmed to perform a variety of RF and analog functions. This single space qualified high speed bipolar "function toolbox" is used in 39 locations throughout the transponder to provide a flexible radio architecture. The ASIC design process, internal electrical design, circuit appl

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