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Relevant bibliographies by topics / Cosmic ray interactions / Dissertations / Theses

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Dissertations / Theses on the topic 'Cosmic ray interactions'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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Consult the top 29 dissertations / theses for your research on the topic 'Cosmic ray interactions.'

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1

Stassinakis, Argyrios. "A study of the atmospheric neutrino flavour content using the Soudan 2 detector." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388755.

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2

Choi, HyoJeong. "Cosmic-ray interactions in charged-couple devices in the DMTPC 4-shooter detector." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/84390.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 47-48).<br>The Dark Matter Time Projection Chamber (DMTPC) is a low pressure (CF 4) detector that measures the two-dimensional vector direction of nuclear recoils, and it aims to directly detect dark matter. This paper explores cosmic ray interactions with the four charge-coupled devices (CCDs) of the 4-shooter detector, the largest existing prototype detector in the DMTPC project, by looking at surface runs at MIT with detector vo

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3

Porter, Troy Anthony. "Signatures of the propagation of primary and secondary cosmic ray electrons and positrons in the galaxy." Title page, table of contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09php848.pdf.

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Includes bibliographical references (8 p.) Examines some of the consequences of the acceleration and production, and propagation, of high energy electrons and positrons in the Galaxy. In particular, predictions are made of the diffuse photon signals arising from the interactions of electrons and positrons with gas, low energy photons, and the galactic magnetic field during their transport in the Galaxy.

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4

Stever, Samantha Lynn. "Characterisation and modelling of the interaction between sub-Kelvin bolometric detectors and cosmic rays." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS009/document.

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Nous avons étudié l'effet des rayons cosmiques dans les détecteurs en utilisant un bolomètre de germanium composite NTD à basse température, et une source de particules alpha comme source générique d'impulsions. Nous avons caractérisé ce bolomètre en constatant que la forme de son impulsion était due à la combinaison de sa réponse impulsionnelle (la somme de deux exponentielles doubles), et des effets liés à la position découlant de la thermalisation des phonons balistiques en phonons thermiques dans son absorbeur. Nous avons établi un schéma décrivant la forme de l'impulsion dans ce bolomètre

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5

Itow, Y. "Verification of hadron interaction models of cosmic rays at 10**17 eV by the LHCf experiment." American Institite of Physics, 2008. http://hdl.handle.net/2237/12228.

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6

Karczynski, Adam Michael. "Measuring Hydraulic Conductivity of Variably-Saturated Soils at the Hectometer Scale Using Cosmic-Ray Neutrons." Thesis, The University of Arizona, 2014. http://hdl.handle.net/10150/323446.

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Hydraulic conductivity of variably-saturated soils is critical to understanding processes at the land surface. Yet measuring it over an area comparable to the resolution of land-surface models is fraught because of its strong spatial and temporal variations, which render point measurements nearly useless. We derived unsaturated hydraulic conductivity at the horizontal scale of hectometers and the vertical scale of decimeters by analyzing trends in soil moisture measured using the cosmic-ray neutron method. The resulting effective hydraulic conductivity remains close to its value at saturation

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7

Heinze, Jonas. "Ultra-high-energy cosmic-ray nuclei and neutrinos in models of gamma-ray bursts and extragalactic propagation." Doctoral thesis, Humboldt-Universität zu Berlin, 2020. http://dx.doi.org/10.18452/21386.

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Utrahochenergetische kosmische Strahlung (ultra-high-energy cosmic rays -- UHECR) besteht aus ionisierten Atomkernen mit den höchsten Teilchenergien, die je gemessen wurden. Zwar wurden die Quellen von UHECRs noch nicht eindeutig identifiziert, doch gibt es deutliche Anzeichen, dass sie extragalaktisch sind. Um die Beobachtungen zu interpretieren, wird ein Modell der Wechselwirkungen mit Photofeldern sowohl in der Quelle als auch während der extragalaktischen Propagation benötigt. Bei diesen Wechselwirkungen werden sekundäre Neutrinos erzeugt. Diese Dissertation behandelt Modelle der Que

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8

Phan, Vo Hong Minh. "Cosmic ray interaction in molecular environment." Thesis, Université de Paris (2019-....), 2020. http://www.theses.fr/2020UNIP7070.

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De nombreuses évidences observationnelles parvenues de différentes expériences au début du 20e siècle ont révélé que la Terre est constamment bombardée par des rayons cosmiques, des particules de haute énergie d'origine extraterrestre. Étant donné que ces particules sont très énergétiques, on pense qu'elles pourraient pénétrer profondément dans les nuages moléculaires et ioniser les parties les plus denses de ces objets, où naissent de nouvelles étoiles. Cela signifie que les rayons cosmiques règlent le niveau d'ionisation qui contrôle non seulement la chimie des nuages moléculaires mais égale

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9

Herbst, Klaudia [Verfasser]. "Interaction of Cosmic Rays with the Earth's Magnetosphere and Atmosphere - Modeling the Cosmic Ray Induced Ionization and the Production of Cosmogenic Radionuclides / Klaudia Herbst." Kiel : Universitätsbibliothek Kiel, 2013. http://d-nb.info/1029981833/34.

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10

Okon, Hiromichi. "X-ray Study on Supernova Remnants Interacting with Dense Clouds." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263456.

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11

Karlsson, Niklas. "Parametric Model for Astrophysical Proton-Proton Interactions and Applications." Doctoral thesis, Stockholm : Fysik, Kungliga Tekniska högskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4524.

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12

Morejon, Leonel. "New Interaction Models of Ultra-high-energy Cosmic Rays from a Nuclear Physics Approach." Doctoral thesis, Humboldt-Universität zu Berlin, 2021. http://dx.doi.org/10.18452/22585.

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Der Ursprung der ultrahochenergetischen kosmischen Strahlung (UHECRs) benötigt Modelle der photonuklearen kosmischen Strahlungsinteraktionen. In dieser Arbeit stelle ich Modelle vor, die drei Aspekte der Modellierung der Hochenergie-Astronuklearphysik verbessern: die Photomesonenproduktion durch Kerne der kosmischen Strahlung, die schwerer als Protonen sind, die Gammastrahlenemission von instabilen Kernen, die durch den Photodisintegrationsprozess der kosmischen Strahlung erzeugt werden, und die Simulation der extragalaktischen Ausbreitung von Kernen, die schwerer als Eisen sind (sogenannte su

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13

LaHurd, Danielle V. "Searching for Quark Gluon Plasma Signatures in Ultra High Energy Cosmic Rays." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1479298851843212.

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14

Griessmeier, Jean-Mathias. "Aspects of the magnetosphere-stellar wind interaction of close-in extrasolar planets." Phd thesis, Katlenburg-Lindau Copernicus GmbH, 2006. http://www.digibib.tu-bs.de/?docid=00013336.

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15

Lineros, Rodriguez Roberto Alfredo. "Study of positrons from cosmic rays interactions and cold dark matter annihilations in the galactic environment." Chambéry, 2008. http://www.theses.fr/2008CHAMS059.

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Rayons cosmiques de positons et les électrons de fournir un moyen complémentaire à l'étude de l'environnement galactique. Les expériences de rayons cosmiques, par exemple PAMELA et HEAT, ont présenté des résultats très intéressant dans ce domaine. La fraction de positrons observé semble plus importante que la réalité les prédictions théoriques des énergies de plus de 10 GeV. Les preuves indirectes de la matière sombre dans le cadre de théories au-delà du modèle standard suggère l'existence d'une contribution supplémentaire présent dans le signal de rayons cosmiques. Nous étudions et le calcul

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16

Giesen, Gaelle. "Dark Matter Indirect Detection with charged cosmic rays." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112160/document.

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Les preuves pour l'existence de la matière noire (MN), sous forme d'une particule inconnue qui rempli les halos galactiques, sont issues d'observations astrophysiques et cosmologiques: son effet gravitationnel est visible dans les rotations des galaxies, des amas de galaxies et dans la formation des grandes structures de l'univers. Une manifestation non-gravitationnelle de sa présence n'a pas encore été découverte. L'une des techniques les plus prometteuse est la détection indirecte de la MN, consistant à identifier des excès dans les flux de rayons cosmiques pouvant provenir de l'annihilation

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17

Morejon, Leonel [Verfasser]. "New Interaction Models of Ultra-high-energy Cosmic Rays from a Nuclear Physics Approach / Leonel Morejon." Berlin : Humboldt-Universität zu Berlin, 2021. http://d-nb.info/1230406751/34.

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18

Stapleton, James C. "Ultra-High Energy Cosmic Rays: Composition, Early Air Shower Interactions, and X_max Skewness." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1431044195.

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19

Silva, André Vieira da 1987. "Estudo de processos difrativos em interações hadrônicas." [s.n.], 2016. http://repositorio.unicamp.br/jspui/handle/REPOSIP/321677.

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Orientadores: Edmilson José Tonelli Manganote, José Augusto Chinellato<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin<br>Made available in DSpace on 2018-08-31T19:37:09Z (GMT). No. of bitstreams: 1 Silva_AndreVieirada_M.pdf: 2116619 bytes, checksum: 5594853aef0531bf0dd2835de169710d (MD5) Previous issue date: 2016<br>Resumo: Nesse trabalho, estudamos os processos difrativos nos eventos de interação hadrônica, observados pelos experimentos dos aceleradores HERA, TEVATRON e LHC. Analisamos uma categoria específica de eventos, os chamados eventos

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20

Junior, Washington Rodrigues de Carvalho. "Detecção de chuveiros atmosféricos iniciados por hádrons massivos." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-13102008-102648/.

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Nesta tese investigamos uma possível componente de partículas previstas por modelos além do modelo padrão da física de partículas, como por exemplo o massive gluino LSP, nos raios cósmicos de altíssimas energias (UHECR). Nosso objetivo é determinar os sinais experimentais em telescópios de fluorescência devidos a hádrons exóticos massivos e neutros, genericamente denominados de UHECRons. Para simular chuveiros iniciados por essa classe de partículas, alteramos o pacote Aires de simulação de chuveiros atmosféricos e o modelo hadrônico Sibyll. Estes chuveiros foram utilizados como entrada em sim

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21

Trichard, Cyril. "Etude du rayonnement gamma de vestiges de supernova en interaction avec des nuages moléculaires et optimisation de l'analyse des données de H.E.S.S." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAY070/document.

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L'expérience H.E.S.S. est un réseau de télescope Tcherenkov, situé en Namibie, qui observe le rayonnement de sources astrophysiques de rayons gamma de très haute énergie. Depuis sa mise en service il y a plus de dix ans, H.E.S.S. a permis d'améliorer considérablement notre vision de l'univers à ces énergies. Depuis 2012, le démarrage de la deuxième phase de l'expérience avec la mise en service d'un cinquième télescope permet de baisser le seuil en énergie de l'expérience.L'optimisation d'une analyse multivariée au sein de l'expérience H.E.S.S. est présentée dans cette thèse. L'analyse Xeff a é

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22

Moreno, Thiago Victor 1988. "Comparação entre produção de múons nos chuveiros atmosféricos extensos observados no Observatório Pierre Auger e nos detetores do experimento CMS do CERN, a partir de colisões próton-próton." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/277005.

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Orientador: José Augusto Chinellato<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin<br>Made available in DSpace on 2018-08-24T07:17:25Z (GMT). No. of bitstreams: 1 Moreno_ThiagoVictor_M.pdf: 9704369 bytes, checksum: 4998048904230625e6cb929460a8f975 (MD5) Previous issue date: 2014<br>Resumo: Neste trabalho o programa CORSIKA foi utilizado para gerar eventos de colisão próton-próton e chuveiros atmosféricos extensos com partícula primária sendo próton ou ferro. Como modelo de interações hadrônicas usou-se o EPOS LHC, QGSJET 01c, QGSJET II-4 e SI

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23

Golubev, Martin. "Studium vlivu ionizujícího záření na komunikační systémy umělých družic." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-376907.

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This master thesis discuss about ionizing radiation, interaction with matter and effects on her. In the work is discussed differend types of interactions of directly ionizing radiation and indirectly ionizing radiation. Below is an overview of methods of shielding from all of types of ionizing radiation. Second part of this thesis discuss about single event effects in semiconductors which are cause by ionizing radiation. At the end is described design of measuring instrument included FPGA chips. This design is discused both from point of wiew hardware and software too.

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24

Tartare, Mathieu. "Etude des neutrinos d'ultra-haute énergie à l'observatoire Pierre Auger." Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENY038/document.

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Près d'un siècle après leur découverte, les rayons cosmiques sont encore sujets à de nombreuses interrogations. À ultra-haute énergie (UHE), leur nature, leur origine et leur mécanisme de production restent encore inconnus malgré les avancées expérimentales. L'observatoire Pierre Auger est actuellement l'expérience incontournable pour tenter de répondre à ces questions. Dans ce contexte, l'étude et la recherche de neutrinos à UHE sont susceptibles d'apporter des informations encore manquantes au puzzle des rayons cosmiques d'ultra-haute énergie, notamment quant à leur mécanisme de production o

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25

Soares, Hendrik Marques. "Influência da seção de choque na interpretação da composição de raios cósmicos ultra energéticos." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/76/76132/tde-28082013-075348/.

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A determinação da massa de raios cósmicos ultra energéticos é uma questão em aberto devido a flutuação natural da primeira interação e o desconhecimentos da seção de choque para altas energias (E > 1017 eV). Alguns estudos (1) mostraram que modificações sistemáticas das propriedades em interações hadrônicas interfere significativamente no desenvolvimento de chuveiros atmosféricos extensos e, consequentemente, provêm diferentes interpretações para os resultados de raios cósmicos. No limite de altas energias, pode ocorrer a saturação de glúons na superfície nuclear, o que resulta no aumento da s

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26

Orlando, Elena [Verfasser]. "Gamma rays from interactions of cosmic-ray electrons / Elena Orlando." 2008. http://d-nb.info/991143280/34.

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27

Sriprisan, Sirikul. "An Improved Knockout-Ablation-Coalescence Model for Prediction of Secondary Neutron and Light-ion Production in Cosmic Ray Interactions." 2008. http://trace.tennessee.edu/utk_graddiss/524.

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An analytical knockout-ablation-coalescence model capable of making quantitative predictions of the neutron and light-ion spectra from high-energy nucleon-nucleus and nucleus-nucleus collisions is being developed for use in space radiation protection studies. The FORTRAN computer code that implements this model is called UBERNSPEC. The knockout or abrasion stage of the model is based on Glauber multiple scattering theory. The ablation part of the model uses the classical evaporation model of Weisskopf-Ewing. In earlier work, the knockout-ablation model was extended to incorporate important coa

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28

佐野, (永井) 栄俊, та (Nagai) Hidetoshi Sano. "An Observational Study of Shock-Cloud Interaction in the Young VHE γ-ray SNR RX J1713.7-3946; Evidence for Cosmic-Ray Acceleration". Thesis, 2014. http://hdl.handle.net/2237/19996.

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29

Nečesal, Petr. "Studium interakcí částic kosmického záření při extrémně vysokých energiích." Doctoral thesis, 2015. http://www.nusl.cz/ntk/nusl-336151.

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This thesis is dedicated to study of interactions of utra-high energy cosmic rays using measured data from the Pierre Auger Observatory, automatic alarm system called Shift Guard and analysis of correlation of temperature and detector response. The Pierre Auger Observatory is the largest experiment to study ultra-high energy cosmic rays. The assumed relation between temperature and fluorescence detector response is studied together with descriptive temperature analysis, which shows that the air-conditioning system is not able to stabilize temperature enough. The temperature influence on camera

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