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Dissertations / Theses on the topic 'Electrons and neutrons'

Author: Grafiati

Published: 25 May 2024

Last updated: 19 July 2025

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1

ANDRADE, MARCOS L. G. "Radiografia com elétrons induzida por nêutrons: Neutron induced eletron radiography." reponame:Repositório Institucional do IPEN, 2008. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11610.

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Made available in DSpace on 2014-10-09T12:53:50Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:58:58Z (GMT). No. of bitstreams: 1 12342.pdf: 14453245 bytes, checksum: d663bec3e62922a0d773fb585931e4de (MD5)<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP

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2

Raymond, Stéphane. "Excitations de basse énergie dans les fermions lourds par diffusion inélastique des neutrons." Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10103.

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La technique de diffusion inelastique des neutrons a ete utilisee pour caracteriser le spectre des excitations magnetiques de basse energie dans les composes a electrons fortement correles cenisn, ce#1#-#xla#xru#2si#2 et ceru#2ge#2. Cenisn est un compose kondo semimetallique dont le spectre des excitations magnetiques est compose de deux modes d'energie 2 et 4 mev et respectivement piques au centre et bord de zone de brillouin. L'application d'un champ magnetique met en evidence la nature differente de ces modes : le premier se deplace vers les plus hautes energies et la reponse du second s'el

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3

Dale, Gregory E. "Electron accelerator-driven photoneutron source for clinical environments /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p3091914.

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4

Balédent, Victor. "Paramètre d'ordre magnétique dans la phase de pseudogap des oxydes de cuivre supraconducteurs à haute température critique." Phd thesis, Université Paris Sud - Paris XI, 2010. http://tel.archives-ouvertes.fr/tel-00683440.

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Ce travail de thèse présente un nouvel ordre magnétique dans l'énigmatique phase de pseudo-gap des cuprates supraconducteurs à haute température critique. L'étude des composés YBa2Cu3O6+δ, HgBa2CuO4+δ et La1.92Sr0.08CuO4 par diffusion élastique de neutrons polarisés a permis de mettre en évidence un paramètre d'ordre magnétique en dessous d'une température comparable à celle de l'ouverture du pseudo-gap de ces systèmes. Nous avons également montré pour la première fois l'existence dans la famille HgBa2CuO4+δ de deux modes collectifs magnétiques associés à la phase de pseudo-gap. Tous ces résul

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5

Grasset, Fabien. "Propriétés structurales, magnétiques et catalytiques de nouveaux oxydes à base de ruthénium ou de platine à empilements mixtes dérivés de la structure perovskite." Phd thesis, Université Sciences et Technologies - Bordeaux I, 1998. http://tel.archives-ouvertes.fr/tel-00007279.

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Lors de l'étude de la série A3A'RuO6 (membre n = infini de la famille A3n+3A'nBn+3O9+6n) (A = Ca, Sr ; A'=Li, Na), quatre nouvelles phases ont été isolées. La structure, constituée de chaînes [RuA'O6] parallèles à l'axe c, est isotype de Sr4PtO6. Une étude comparative des propriétés magnétiques et des expériences de diffraction neutronique montre que ces phases ne semblent pas supporter de description en terme de système magnétique monodimensionnel. L'investigation du système Ba-Pt-O a permis de mettre en évidence la solution solide Ba12[BaxPt3-x]Pt6O27 (O £ x £ 3) où x représente la proportio

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6

Yuan, Junhua Filippone Bradley. "Progress towards a high precision measurement of the neutron spin--electron angular correlation in polarized neutron beta decay with ultra-cold neutrons /." Diss., Pasadena, Calif. : Caltech, 2006. http://resolver.caltech.edu/CaltechETD:etd-01302006-153024.

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7

Bianchini, Matteo. "In situ diffraction studies of electrode materials for Li-ion and Na-ion batteries." Thesis, Amiens, 2015. http://www.theses.fr/2015AMIE0022/document.

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Ce travail vise à étudier les matériaux d'électrodes pour batteries Li-ion et Na-ion lors qu’ils fonctionnent à l'intérieur des batteries. Afin de comprendre l'évolution structurelle des matériaux alors que les ions Li+ ou Na+ sont insérés/extraits de leur cadre, on utilise principalement la diffraction, exploitant neutrons, rayons X et le rayonnement synchrotron (SR). Nous avons adopté une approche combinée des mesures ex situ, in situ et operando. Au début, nous avons conçu une cellule électrochimique pour mesures in situ de diffraction de neutrons sur poudre (NPD), avec un alliage en (Ti,Zr

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8

Astier, Pierre. "Recherche d'oscillations de neutrinos dans le canal neutrino-muon vers neutrino-electron aupres de l'accelerateur de brookhaven." Paris 7, 1987. http://www.theses.fr/1987PA077268.

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9

Heron, Heidi. "Techniques to measure the NC background in the SNO experiment." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244578.

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10

Tchoualack, Tchamako Armel. "Détecteur SiC de particules et électronique de conditionnement." Electronic Thesis or Diss., Aix-Marseille, 2021. http://www.theses.fr/2021AIXM0176.

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Il s'agit à la fois d'étudier des détecteurs de particules (électrons et neutrons) en carbure de silicium à l'état de l'art, et de réaliser une interface électronique reconfigurable et intégrée adaptative à partir de technologies durcies pour le conditionnement et le traitement du signal électrique généré. Le front-end électronique (électronique de lecture) devra être capable d'extraire les signaux utiles (réponse en courant) des détecteurs ayant des caractéristiques différentes (dimensions, temps de réponse) et de fournir des données résolues (nature de la particule, spectroscopie, etc.) à l'

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11

Fischer, Vincent. "Beta-decay emitted electronic antineutrinos as a tool for unsolved problems in neutrino oscillation physics." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066237/document.

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Le cadre global des oscillations de neutrinos est maintenant bien compris et nous quittons une ère d'exploration pour une ère de précision. L'expérience Double Chooz a pour but de mesurer l'angle de mélange theta13 par l'étude des oscillations des antineutrinos électroniques produits par les réacteurs de la centrale nucléaire de Chooz. Dans cette thèse, une sélection préliminaire des neutrinos détectés dans le détecteur proche est présentée. Les résultats les plus récents de Double Chooz, desquels sont extraits la mesure de theta13 la plus précise que l'expérience peut fournir à ce jour, seron

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12

Caravaca, Rodríguez Javier. "Measurement of the electron-neutrino component of the T2K beam and search for electron-neutrino disappearance at the T2K Near Detector." Doctoral thesis, Universitat Autònoma de Barcelona, 2014. http://hdl.handle.net/10803/283399.

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T2K es un experimento de oscilaciones de neutrinos de largo recorrido en el que por primera vez se ha observado la aparición de neutrinos electrónicos en un haz de neutrinos muónicos. Así pues, el único ángulo de mezcla que quedaba por conocer, q13, es medido con gran precisión. el background principal de esta medida es la contaminación de neutrinos electrónicos producida en el haz junto con la componente de neutrinos muónicos. Ésta es una componente irreducible que ha de ser medida y controlada. La componente intrínseca de neutrinos electrónicos es medida antes de las oscilaciones en el

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13

Lai, Chi-hsuan. "Neutrino electron plasma instability /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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14

Helme, Lucy. "Neutron Scattering Studies of Correlated Electron Systems." Thesis, University of Oxford, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491531.

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This thesis presents neutron scattering studies of three correlated electron systems, each of which exhibit different competing interactions. These include charge order, magnetic order and lattice degrees of freedom. The main focus is on magnetic excitations within the systems. In all cases the experimental data have been analysed through comparison with theoretical models. Chapter 3 presents an investigation into the Jahn-Teller effect in the rare earth oxide Pr02, through inelastic neutron scattering studies of the crystal field transitions above and below a static structural distortion temp

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15

Paoli, M. P. "Electron-volt neutron spectroscopy of condensed matter." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235080.

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16

Klimenko, Alexei V. Kuhn Sebastian. "Electron scattering from a high momentum neutron in deuterium /." Connect to this resource. (Authorized users only), 2004.

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17

Salagnac, Thomas. "Recherche d'un neutrino stérile avec l'expérience STEREO : développement de l'électronique et identification des neutrinos." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAY068/document.

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Depuis 2011, la réévaluation de plus d’une vingtaine de mesures de flux de neutrinos de réacteur mesurés à courtes distances suggère la présence d’un déficit de 7 % par rapport aux prédictions. Cette anomalie est statistiquement significative à environ 3 sigmas, tout comme une autre anomalie similaire correspondant à l’observation d’un déficit de neutrinos émis par des sources intenses de désintégrations beta. Ces anomalies peuvent être expliquées soit par un biais dans la prédiction des flux de neutrinos, soit par l’existence d’un nouvel état de neutrino, un neutrino stérile léger, vers leque

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18

Rutt, Paul Martin. "The recoil momentum dependence of the deuterium(electron, electron' neutron)proton cross section." W&M ScholarWorks, 1993. https://scholarworks.wm.edu/etd/1539623831.

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We measured of the recoil momentum dependence of the d(e,e$\sp\prime$n)p cross section at a central $\vec q$ of 335 MeV/c. These measurements were part of experiment 85-05 at the Bates Linear Accelerator Center which also measured the electric and magnetic form factors of the neutron, G$\sbsp{\rm E}{n}$ and G$\sbsp{\rm M}{n}$. The experiment was run with a 444 MeV electron beam incident on a 5 cm target of liquid deuterium. Outgoing electrons of different momenta were selected by changing the dipole field of the electron spectrometer OHIPS which was at a fixed angle of 47$\sp\circ$. Neutrons w

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19

Niederhausen, Hans. "Measurement of the High Energy Astrophysical Neutrino Flux Using Electron and Tau Neutrinos Observed in Four Years of IceCube Data." Thesis, State University of New York at Stony Brook, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10823307.

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<p> The high-energy universe is known to be violent. Ultra High Energy Cosmic Rays (UHECRs) have been observed with kinetic energies exceeding 10<sup> 20</sup> eV. Their origin, despite decades of observations, remains elusive. A unique probe of the sources and production mechanisms of these high energy cosmic rays can be neutrinos, since they are inevitably produced when high-energy protons interact. The IceCube Neutrino Observatory, located at the geographical South Pole in Antarctica, continuously monitors a total volume of 1 km<sup> 3</sup> of clear Antarctic ice for neutrino interactions.

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20

Hollnagel, Annika [Verfasser], and Caren [Akademischer Betreuer] Hagner. "Energy reconstruction of electron neutrino events and muon neutrino-to-electron neutrino appearance search in the OPERA detector / Annika Hollnagel ; Betreuer: Caren Hagner." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2018. http://d-nb.info/1164158724/34.

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21

Tenti, Matteo <1982&gt. "Electron identification and reconstruction with the OPERA ECC bricks and search for muon neutrino to electron neutrino oscillations." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4294/1/TESI.pdf.

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The procedure for event location in OPERA ECC has been optimazed for penetrating particles while is less efficient for electrons. For this reason new procedure has been defined in order to recover event with an electromagnetic shower in its final state not located with the standard one. The new procedure include the standard procedure during which several electromagnetic shower hint has been defined by means of the available data. In case the event is not located, the presence of an electromagnetic shower hint trigger a dedicated procedure. The old and new location procedure has been then s

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22

Tenti, Matteo <1982&gt. "Electron identification and reconstruction with the OPERA ECC bricks and search for muon neutrino to electron neutrino oscillations." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4294/.

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The procedure for event location in OPERA ECC has been optimazed for penetrating particles while is less efficient for electrons. For this reason new procedure has been defined in order to recover event with an electromagnetic shower in its final state not located with the standard one. The new procedure include the standard procedure during which several electromagnetic shower hint has been defined by means of the available data. In case the event is not located, the presence of an electromagnetic shower hint trigger a dedicated procedure. The old and new location procedure has been then s

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23

Mohanmurthy, Prajwal. "Topics on electron,neutrino and axion scattering." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/103161.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Physics, 2015.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 61-64).<br>Under the broad topic of scattering, in this thesis we particularly investigate Lorentz invariance using Compton Scattering at the Compton Polarimeter located in Hall-C at Thomas Jefferson National Accelerator Facility. The Mississippi State Axion Search, an axion searc

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24

Holin, A. M. "Electron neutrino appearance in the MINOS experiment." Thesis, University College London (University of London), 2010. http://discovery.ucl.ac.uk/20223/.

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The MINOS experiment is a long-baseline neutrino oscillation experiment which sends a high intensity muon neutrino beam through two functionally identical detectors, a Near detector at the Fermi National Accelerator Laboratory in Illinois, 1km from the beam source, and a Far detector, 734km away, in the Soudan Mine in Minnesota. MINOS may be able to measure the neutrino mixing angle parameter sin{^2}2\theta{_1_3} for the first time. Detector granularity, however, makes it very hard to distinguish any \nu{_e} appearance signal events characteristic of a non-zero value of \theta{_1_3} from backg

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25

Liu, Ji. "Electron Neutrino Appearance in the Nova Experiment." W&M ScholarWorks, 2016. https://scholarworks.wm.edu/etd/1499449859.

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The NuMI off-Axis $\nu_e$ Appearance (NO$\nu$A) experiment is a long baseline, off-axis neutrino oscillation experiment. It is designed to search for oscillations of $\nu_\mu$ to $\nu_e$ by comparing measurements of the NuMI beam composition in two detectors. These two detectors are functionally identical, nearly fully-active liquid-scintillator tracking calorimeters and located at two points along the beam line to observe the neutrinos. The Near Detector (ND), situated \unit[1]{km} away from the proton target at Fermilab, measures neutrinos prior to oscillation. Then the Far Detector (FD), lo

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26

Baillie, Nathan Kidd. "Electron scattering from an almost free neutron in deuterium." W&M ScholarWorks, 2010. https://scholarworks.wm.edu/etd/1539623554.

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The Barely off-Shell Nucleon Structure (BoNuS) experiment measured electron scattering from neutrons bound in deuterium nuclei at Jefferson Lab's Hall B with the intent of obtaining the ratio Fn2/Fp2 at high Bjorken x. The Fn2 structure function is difficult to obtain due to nature's lack of a free neutron target. Previous experiments have measured inclusive scattering from atomic nuclei, but extracting Fn2 from these data requires knowledge of inclusive scattering from the proton and corrections for nucleon binding and Fermi motion. In BoNuS we restrict our analysis to neutron scatte

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27

Lafont, Fabien. "Développement du détecteur d'électrons SECOND dédié à la mesure du temps de vie du neutron dans l'expérience HOPE." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAY065/document.

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Sous réserve d’une énergie cinétique suffisamment faible, un neutron libre peut être piégé matériellement ou magnétiquement de sorte à garantir son confinement au sein d’un volume défini. Cette caractéristique permet l’étude de plusieurs paramètres, notamment de son temps de vie moyen. L’expérience HOPE, piège magnétique de neutrons ultra-froids mis en œuvre à l’Institut Laue Langevin à Grenoble, vise à fournir une valeur précise de ce temps de vie au travers de différentes méthodes. L’une d’entre elles consiste à observer les électrons émis par la décroissance bêta du neutron. Le détecteur SE

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28

FERRARIO, ALBERTO. "Atmospheric neutron induced soft errors on electronic devices." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2012. http://hdl.handle.net/10281/28334.

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Soft errors at sea level, originating from scattered particles in the atmosphere or alpha-emitting contaminants in chip materials, are a known source of disturbances in SRAM's and, to a lesser extent, in DRAM's. Relatively less is known about the sensitivity of Floating Gate memories, one of the most pervasive type of memory. An extensive literature covers the effects of heavy ions on floating gate cells, but little data obtained with particles matching the terrestrial neutron environment are available. The purpose of this thesis is to investigate atmospheric neutron effects on floating gate

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29

Ruan, Chong-yu. "From neutrinos to liquid clusters, structure investigations by electron scattering and related methods /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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30

Deniz, Muhammed. "Measurement Of Sm Electro-weak Parameters In Reactor Antineutrino-electron Scattering In Texono Experiment." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608386/index.pdf.

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In this thesis a search for electron type neutrino-electron scattering cross-section and Weinberg Angle measurements were performed at KS Nuclear Power Station with 200 kg CsI(Tl) scintillating crystal detector located at a distance of 28 m from the 2.9 GW reactor core giving total flux of 6:52X10^12 cm^-2s^-1 in average at the experimental site. New analysis techniques and background suppression methods were developed. In the region of 3-8 MeV a measurement of SM cross section of (1:235+-0.577) XR_SM and Weinberg Angle of 0:264 +-0.075 which is quite consistent with the SM value of 0.23120(15

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31

Dong, Chuang. "Structure et formation des quasicristaux et des phases cristallines approximantes dans les alliages Ti-Fe, Al-Cu-Fe(-Cr), Al-Cu-Co(-Si) et Al-Pd-Mn." Vandoeuvre-les-Nancy, INPL, 1991. http://docnum.univ-lorraine.fr/public/INPL_T_1991_DONG_C.pdf.

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Nous avons analysé par microscopie électronique à transmission et par diffraction des neutrons les alliages quasicristallins suivants: Ti2Fe, Al65Cu20Fe15, Al71Pd19Mn10, Al65Cu20Fe10Cr5, Al65Cu17,5 et Al63Cu17,5Si2. Toutes ces études abordent deux aspects différents de ces alliages : les phases quasicristallines et leurs approximants cristallins. Dans le premier aspect, nous avons étudié la structure et la formation des phases icosaédriques Ti-Fe, Al-Cu-Fe et Al-Pd-Mn. Les mécanismes de croissance ont été identifiés. Les vitesses de croissance de ces quasicristaux sont très faibles par rapport

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32

Toner, Ruth Bushnell. "Measuring θ₁₃ via muon neutrino to electron neutrino oscillations in the MINOS experiment". Thesis, University of Cambridge, 2012. https://www.repository.cam.ac.uk/handle/1810/265528.

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One of the primary goals in neutrino physics at the present moment is to make a measurement of the neutrino oscillation parameter B13 . This parameter, in addition to being unknown, could potentially allow for the introduction of CP violation into the lepton sector. The MINOS long-baseline neutrino oscillation experiment has the ability to make a measurement of this parameter, by looking for the oscillation of muon neutrinos to electron neutrinos between a Near and Far Detector over a distance of 735 km. This thesis discusses the development of an analysis framework to search for this oscillat

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33

Yang, Tingjun. "A study of muon neutrino to electron neutrino oscillations in the MINOS experiment /." May be available electronically:, 2009. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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34

Liu, Qiang. "Synthesis, characterization and investigation on the magnetic and electronic structure of strontium iron oxides." Thesis, Bordeaux 1, 2013. http://www.theses.fr/2013BOR14772/document.

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Les diverses perovskites de strontium-fer présentent de très fortes corrélations entre la structurecristalline et les phénomènes d’ordre de lacunes d’oxygènes, de charge, de spin et d’orbitales. Danscette thèse, nous avons réalisé une étude systématique des relations entre les ordres de charges etles ordres de spins selon les différents environnements cristallographiques rencontrés pour lescations Fe3+ et Fe4+ dans la phase Sr4Fe4O11, pour le cation Fe3+ dans les phases Sr3Fe2O6 et Sr2Fe2O10et pour le cation Fe2+ dans la phase SrFeO2. Les synthèses des phases polycristallines furent réaliséesv

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35

Versari, Federico <1992&gt. "Measurement of the atmospheric electron and muon neutrino flux with the ANTARES neutrino telescope." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9664/1/PhD_Thesis____.pdf.

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This thesis presents a combined measurement of the energy spectra of atmospheric electron and muon neutrinos in the energy range between around 100 GeV and 50 TeV with the ANTARES neutrino telescope. The analysis uses 3012 days of detector livetime in the period from 2007 to 2017, and selects 1016 neutrino interacting in (or close to) the instrumented volume of the detector, yielding shower-like events and starting track events. The contamination by atmospheric muons is suppressed at the level of a few per mill by different steps in the selection analysis, including a Boosted Decision Tree cla

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36

Bay, Muhammet Fatih. "Study Of Electron Identification In The Opera Detector." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609649/index.pdf.

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The OPERA experiment is designed to perform first direct observation of $nu_{tau}$ appearance in an almost pure $nu_{mu}$ beam. The OPERA detector is a hybrid set-up which combines a lead/emulsion target with various electronic detectors. It is located in Gran Sasso Laboratory (LNGS), 730 km away from CERN where neutrino beam is produced. A good electron identification in the ECC brick would also allow OPERA to search for $nu_{mu}rightarrownu_{e}$ oscillations. We have studied electron identification in the Emulsion Cloud Chamber (ECC) brick which was exposed to CERN SPS H4 electron beam. Emul

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37

Ewings, Russell A. "Neutron and X-ray scattering studies of strongly correlated electron systems." Thesis, University of Oxford, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.489436.

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In this thesis results of x-ray scattering and neutron scattering experiments on several strongly correlated transition metal oxides are presented. The prototypical charge ordered cuprate La1.48Nd0.4Sr0.12CuO4 was investigated using polarised neutron scattering. The results show that several proposed schemes for the magnetic order in this class of materials may be ruled out, however the data are consistent with one-dimensional stripe-like magnetic order. X-ray diffraction was used to show that the charge order is insensitive to an applied magnetic field, but might be affected by the existence

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38

Castellan, John-Paul Adrian Gaulin B. D. "X-ray and neutron diffraction studies of strongly correlated electron systems." *McMaster only, 2007.

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39

Jillings, Christopher James. "The electron scattering reaction in the Sudbury Neutrino Observatory." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0006/NQ42947.pdf.

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40

Miranda, P. M. C. "Contributions to the search for a neutron EDM." Thesis, University of Sussex, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375844.

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The work described in this thesis was carried out at the Institut Laue Langevin, Grenoble, France as a member of the group searching for the electric dipole moment (EDM) of the neutron. The first chapter is an introduction to ultra-cold neutrons (UCN) and their use in the search for an EDM. In chapter two a description is given of the data acquisition procedure and the data analysis method as well as a discussion of the various sources of spurious EDM signals. The data taken by the author yielded the result I-fe/e = ( -3.7 ± 5.4 )xl0-25 cm, which together' with all the other data previously an

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Sowrey, Frank Edward. "Electronic and magnetic coupling in triangular metal clusters." Thesis, University of East Anglia, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338298.

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42

Seydaliev, Marat Radikovich. "Development and Test of a GEM-Based TEPC for Neutron Protection Dosimetry." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14607.

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The effective dose equivalent, H (or the effective dose, E ) to an individual is the primary limiting quantity in radiation protection. However, techniques for measuring H for neutrons have not been fully developed. In this regard a new tissue equivalent proportional counter (TEPC) based on a gas electron multiplier (GEM) for measuring H*(10), which is a conservative estimate of H, for neutrons was designed and constructed. The deposited energy distribution for two different neutron sources (a Cf-252 source and a AmBe source) was measured using the new TEPC. The measurements were performed us

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Giganti, Claudio. "Particule Identification in the T2K TPCs and study of the electron neutrino component in the T2K neutrino beam." Paris 11, 2010. http://www.theses.fr/2010PA112334.

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Cette thèse est consacrée à la mesure de l'apparition du neutrino électronique avec l'expérience T2K. T2K est une expérience pour la mesure des oscillations de neutrinos installée au Japon. Le faisceau de neutrinos est produit par un accélérateur à JPARC et les neutrinos sont observés avant l'oscillation dans un détecteur proche, ND280, et après l'oscillation dans un détecteur lointain, SuperKamiokande. L'objectif de cette thèse est la mesure, avec le détecteur proche, de la composante intrinsèque de neutrinos électroniques dans le faisceau. Les TPC constituent le détecteur principal utilisé p

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Gilkes, Kai William Reginald. "Tetrahedral carbon : studies using high resolution transmission electron microscopy and neutron scattering." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.281952.

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Orrell, John Laurence. "A search for an electron antineutrino signal in the Sudbury Neutrino Observatory /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/9794.

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Gérard, Pascale. "Contribution à l'étude magnétostatique des systèmes intermétalliques R(Co1-xNix)5." Grenoble 1, 1992. http://www.theses.fr/1992GRE10041.

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Une etude de l'evolution du magnetisme des electrons 3d dans le systeme y(co#1##xni#x)#5 (entre le fort ferromagnetisme itinerant associe au compose yco#3 et le paramagnetisme de pauli caracteristique du compose yni#5) est effectuee. On montre qu'aux fortes concentrations en nickel, les instabilites du magnetisme s'instaurent de maniere inhomogene, en fonction des environnements locaux. On precise ensuite les anisotropies associees a ce magnetisme. Elles revelent le caractere du magnetisme itinerant du sous-reseau (co#1##xni#x). Une etude de la coercivite magnetique, associee aux defauts d'ech

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Evans, Alan Charles. "The study of condensed matter by deep inelastic neutron scattering." Thesis, University of Warwick, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387343.

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Ronchi, Emanuele. "Neural Networks Applications and Electronics Development for Nuclear Fusion Neutron Diagnostics." Doctoral thesis, Uppsala universitet, Institutionen för fysik och astronomi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-108583.

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This thesis describes the development of electronic modules for fusion neutron spectroscopy as well as several implementations of artificial neural networks (NN) for neutron diagnostics for the Joint European Torus (JET) experimental reactor in England. The electronics projects include the development of two fast light pulser modules based on Light Emitting Diodes (LEDs) for the calibration and stability monitoring of two neutron spectrometers (MPRu and TOFOR) at JET. The particular electronic implementation of the pulsers allowed for operation of the LEDs in the nanosecond time scale, which i

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Mannix, Daniel. "X-ray and neutron scattering studies of f-electron multilayers and single crystals." Thesis, University of Liverpool, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263708.

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Saeed, Azmat. "A high resolution electron microscopy and neutron scattering investigation of some amorphous materials." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358768.

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