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Dissertations / Theses on the topic 'Wigglers'

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1

Abualrob, Hadil. "Construction et études de wigglers à SOLEIL : W164 et wiggler Robinson." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112213.

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Es centres de rayonnement synchrotron sont des accélérateurs de particules qui génèrentun faisceau de lumière bien intense et collimaté en courbant la trajectoire d'un faisceau d´électronrelativiste. Le champ le plus simple utilisé pour courber la trajectoire d'un électron est unchamps magnétique constant généré par un dipôle. Des rayonnements plus intense peuventêtre émis dans une insertion. Une insertion est composée d'une séries de dipôle de polaritésinverses. Les insertions comprennent en général deux types : onduleurs et wigglers. Leswigglers sont très importants pour une source de rayonn
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2

Frachon, Didier. "Développement de bancs de mesure magnétique pour ondulateurs et wigglers." Grenoble 1, 1992. http://www.theses.fr/1992GRE10040.

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Les nouvelles sources de rayonnement synchrotron telles que l'esrf, permettent de generer des faisceaux de rayons x a tres haute brillance grace a l'utilisation des elements d'insertion: ondulateurs et wigglers. Contrairement aux elements magnetiques classiques utilises dans les accelerateurs (dipoles, quadripoles,. . . ), les elements d'insertion ne doivent pas affecter la dynamique du faisceau de particules. L'emploi tres courant d'aimants permanents pour leur realisation ne permet pas d'atteindre directement les qualites magnetiques requises. Dans le but de mettre au point des methodes de c
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3

Kneip, Stefan. "Laser plasma accelerator and wiggler." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/5671.

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This thesis details experimental research of laser-driven electron acceleration from underdense plasmas and the characterisation of the x-ray radiation owing to the transverse oscillatory motion that electrons perform during the acceleration process. Acceleration of monoenergetic electron beams to the GeV level was achieved for the first time in a self-guiding, self-injecting wakefield accelerator in the nonlinear regime, driven by the 200 TW Astra Gemini laser. The laser pulse was shown to be self-guided for 1 cm or more than ten times its Rayleigh range, by measurement of a single filament c
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4

Garcia, Perez Oscar Armando. "Condicionamento espectral da luz de um Wiggler." [s.n.], 1995. http://repositorio.unicamp.br/jspui/handle/REPOSIP/277361.

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Orientador: Antonio Rubens Britto de Castro<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Fisica "Gleb Wataglin"<br>Made available in DSpace on 2018-07-20T21:46:26Z (GMT). No. of bitstreams: 1 GarciaPerez_OscarArmando_M.pdf: 1340646 bytes, checksum: 9bc8d75a0d4a71f3107692ab482e7e67 (MD5) Previous issue date: 1995<br>Resumo: Esta tese descreve o projeto de um sistema de filtros de carbono, a ser instalado nas linhas de wiggler do Laboratório Nacional de Luz Sincrotron (LNLS). O sistema compõe-se de seis películas, com uma densidade superficial total x=61627mg/cm2
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5

Chen, Sijia. "FEL theory in the ion channel wiggler." Thesis, University of Strathclyde, 2016. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=27544.

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The ion channel laser (ICL) is an ultra-compact version of the free-electron laser (FEL),with the wiggler replaced by an ion channel. Given its small size and the large wiggler field that can be created within a small volume, it has enormous potential for generating high-frequency coherent radiation. Previous studies of the ICL [1,5], however, have assumed transverse momentum amplitudes that are unrealistically small for experiments, and thus concluded that high-gain high-frequency coherent radiation generation using the ICL is infeasible. In contrast, this thesis shows that this restriction c
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6

Schoerling, Daniel. "Superconducting wiggler magnets for beam-emittance damping rings." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2012. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-85819.

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Elektronen- und Positronenstrahlen mit niedrigsten Emittanzen und hohen Strömen werden in zukünftigen Linearbeschleunigern, wie zum Beispiel dem Compact Linear Collider (CLIC), benötigt, um die geforderte Leuchtkraft für physikalische Experimente bereit zu stellen. Diese Strahlen können in Dämpfungsringen, ausgestattet mit starken, supraleitenden Dämpfungswigglermagneten, erzeugt werden. In dieser Arbeit sind Designkonzepte verschiedener supraleitender Dämpfungswigglermagnete entwickelt worden. Testspulen sowie Modelle sind gebaut und getestet, elektrische Verbindungstechniken entwickelt worde
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7

Al-Shamma'a, Ahmed Ibrahim. "Wiggler system for an industrial free electron laser." Thesis, University of Liverpool, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318234.

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8

Tydecks, Tobias. "A Robinson Wiggler for the Metrology Light Source." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17639.

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Im Jahre 1958, schlug Kenneth W. Robinson die Nutzung eines Korrektormagneten vor um den entdämpften radialen Betatronoszillationen im Cambridge electron accelerator entgegen zu wirken. Dieser Korrektormagnet sollte aus kurzen, alternierenden Dipolen mit einem starken Gradienten bestehen, sodass die Verluste durch Synchrotronstrahlung mit zunehmendem Trajektorienradius abnehmen. Diese Transversal-Gradienten-Wiggler werden auch "Robinson Wiggler" (RW) genannt. Die Metrology Light Source (MLS), welche Eigentum der Physikalisch-Technischen Bundesanstalt (PTB) ist und vom Helmholtz-Zentrum Berlin
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9

Lehmann, Sharon Fincher. ""Wiggles and Volcanos": an Investigation of Children's Graphing Responses to Music." Thesis, University of North Texas, 1993. https://digital.library.unt.edu/ark:/67531/metadc278601/.

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The purpose of this study was to investigate changes in selected children's Graphing Response Patterns to elemental changes in compositions in theme and variation form. The research problems were (1) to determine points and degrees of elemental change in the compositional structure of the musical examples; (2) to determine number, degree, and nature of changes in subjects' graphing response pattern to aurally presented musical examples; (3) to determine percentages of agreement between changes in graphing response patterns and points of elemental change within the compositional structures; (4)
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10

Wallace, Stephen M. "Magnetic field measurements of the CEBAF (NIST) wiggler using the pulsed wire method." Thesis, Monterey, California. Naval Postgraduate School, 1992. http://hdl.handle.net/10945/23947.

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11

Orban, Christopher M. "Powerlaws, Bumps and Wiggles: Self-Similar Models in the Era of Precision Cosmology." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1299614704.

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12

Tydecks, Tobias [Verfasser], Andreas [Gutachter] Jankowiak, Bernhard [Gutachter] Schmidt, and Riccardo [Gutachter] Bartolini. "A Robinson Wiggler for the Metrology Light Source / Tobias Tydecks ; Gutachter: Andreas Jankowiak, Bernhard Schmidt, Riccardo Bartolini." Berlin : Mathematisch-Naturwissenschaftliche Fakultät, 2016. http://d-nb.info/112047034X/34.

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13

Schoerling, Daniel [Verfasser], Alfons [Akademischer Betreuer] Ams, Alfons [Gutachter] Ams, and Stephan [Gutachter] Russenschuck. "Superconducting wiggler magnets for beam-emittance damping rings / Daniel Schoerling ; Gutachter: Alfons Ams, Stephan Russenschuck ; Betreuer: Alfons Ams." Freiberg : Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2012. http://d-nb.info/122091133X/34.

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14

Gethmann, Julian [Verfasser], and A. S. [Akademischer Betreuer] Müller. "Systematic studies of the beam dynamics with a superconducting damping wiggler at KARA / Julian Gethmann ; Betreuer: A.-S. Müller." Karlsruhe : KIT-Bibliothek, 2021. http://nbn-resolving.de/urn:nbn:de:101:1-2021091504590967187283.

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15

Nakamura, T., M. Okuno, K. Kimura, et al. "Application Of ¹⁴C Wiggle-Matching To Support Dendrochronological Analysis In Japan." Tree-Ring Society, 2007. http://hdl.handle.net/10150/622549.

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¹⁴C wiggle-matching was applied to two wood samples closely related to geological and archaeological events with associated dendrochronological dates, to demonstrate the accuracy of ¹⁴C dating with accelerator mass spectrometry (AMS). Wiggle-matching on charred wood with bark, excavated from a pyroclastic mud-flow deposited by the huge 10th Century eruption of the Baitoushan Volcano, revealed the eruption age as cal A.D. 935 +8/-5 with 95% confidence. This date is consistent with the eruption age of A.D. 912 to A.D. 972 estimated by dendrochronology on two wooden boards that had clear stratig
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16

Roeder, Shamus Kirkwood. "Thump, womp, and wiggle: novel methods of identifying impacts within vibrating environments." Thesis, University of Iowa, 2019. https://ir.uiowa.edu/etd/6844.

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Exposure to whole body vibration has been identified as a risk factor for the development of low back problems and exposure to frequent vertical impacts has been identified as a risk factor for both acute and chronic back injury. While there have been many prior studies into human response to both vibration and impacts, these studies have only examined them in isolation from one another, i.e. only sinusoidal vibration or impacts with no concurrent vibration. This does not reflect the environments in which occupational exposures take place and limits our ability to generalize these findings to
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17

Pierman, Eleanor L. "Wiggle Room: The Impact of Dance on Pre-K Children with Special Needs." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1468414976.

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18

Pelc, Krzysztof J. "The cost of wiggle-room on the use of flexibility in international trade agreements /." Connect to Electronic Thesis (CONTENTdm), 2009. http://worldcat.org/oclc/463166578/viewonline.

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19

Blaauw, Maarten Ake. "An investigation of holocene sun-climate relationships using numerical 14C wiggle-match dating of peat deposits." Amsterdam : Amsterdam : IBED, Universiteit van Amsterdam ; Universiteit van Amsterdam [Host], 2003. http://dare.uva.nl/document/67138.

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20

奥村, 晃史, Koji Okumura, 尚. 小疇 та ін. "Wiggle Matchingを用いた中世樹幹試料の高精度年代決定". 名古屋大学年代測定資料研究センター 天然放射性元素測定小委員会, 1998. http://hdl.handle.net/2237/13376.

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21

Lin, Rae Jui-Ping. "Wiggle room for teaching English as a global language? : Western-educated Taiwanese English teachers’ identities and teaching of English writing." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/60941.

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As the English language spreads around the globe and is used for various purposes in different social and cultural contexts, scholars and local practitioners have called for deconstructing the ideology of native-speakerism (Holliday, 2006, 2015) and reconstructing the local subjectivity of English language education (e.g., Canagarajah, 2005; Kumaravadivelu, 2016). In this transformation process of English language education, language teacher identity has played a central role because how teachers see themselves as English speakers, writers, and teachers is closely linked to what and how they t
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22

Tuček, Marek. "Frekvenční rapid-scan EPR na organických radikálech." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382258.

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Tato práce popisuje historicky první multi-frekvenční rapid-scan EPR. Při zavedení mikrovlnného záření z oblasti 200 GHz a následnou sinusovou modulací bylo dosaženo rychlostí změn frekvence až 61 500 THz/s a zkreslení spekter, známé jako ”wiggles”, bylo pozorováno u obou studovaných vzorků organických radikálů – BDPA v polystyrenové matici a LiPc. Tato práce představuje flexibilní metodu provádění rapid-scan EPR experimentů za použití napětím ovládaného oscilátoru (Voltage Controlled Oscillator; VCO) jako zdroje a zero-bias detektoru (ZBD) pro detekci, čímž se otevírá možnost postupu dále do
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23

Nakamura, Toshio, Katsuhiko Kimura, Hideki Takada та ін. "縄文時代晩期における環状木柱列の形成時期". 名古屋大学年代測定資料研究センター, 2010. http://hdl.handle.net/2237/14752.

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24

Maréchal, Xavier-Marie. "Contrôle de la polarisation de l'émission synchrotron générée par des éléments d'insertion magnétiques périodiques." Grenoble 1, 1992. http://www.theses.fr/1992GRE10204.

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L'esrf est un anneau de stockage de 6 gev dedie a la production de rayons x de tres haute qualite. Les sources de rayonnement synchrotron x sont des systemes magnetiques specifiques appeles elements d'insertion (e. I. ): les onduleurs et les wigglers. Ce travail realise au sein du groupe elements d'insertion de l'esrf presente les deux aspects des e. I. : * leur realisation a partir d'aimants permanents, avec une presentation des outils de modelisation a 2 et a 3 dimensions, * a l'aide du programme b2e, le calcul du rayonnement emis par un onduleur, en fonction des parametres du faisceau d'ele
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25

Nakamura, Toshio, Takayuki Omori, 俊夫 中村 та 貴之 大森. "トルコ共和国カマン・カレホユック遺跡前期鉄器時代の^<14>C変動について". 名古屋大学年代測定資料研究センター, 2010. http://hdl.handle.net/2237/14755.

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26

Coacolo, Jean-Louis. "Etude de la dynamique de faisceaux courts d'électrons en début de ligne accélératrice du laser à électrons libres ELSA." Grenoble 1, 1993. http://www.theses.fr/1993GRE10133.

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La recherche d'une grande efficacite de conversion d'energie entre le faisceau d'electrons et de photons, dans l'onduleur du laser a electrons libres, demande une connaissance approfondie de l'evolution de la qualite de faisceau. D'autant plus que la duree de celui-ci est de quelques dizaines de picosecondes, un domaine qui est mal connu. La degradation de cette qualite est due essentiellement, aux effets de champ propre dans la phase initiale de l'acceleration des electrons. En vue d'optimiser la qualite du faisceau, un modele analytique et une simulation numerique sont developpes pour etudie
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27

Tomiyama, Shinji, Kazuma Hase, Aoi Soda та ін. "名古屋大学タンデトロンAMS14Cシステムの現状と利用(2012)". 名古屋大学年代測定資料研究センター, 2013. http://hdl.handle.net/2237/20111.

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28

"Electron motion & stability in a wiggler field." Chinese University of Hong Kong, 1989. http://library.cuhk.edu.hk/record=b5886586.

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29

Schoerling, Daniel. "Superconducting wiggler magnets for beam-emittance damping rings." Doctoral thesis, 2011. https://tubaf.qucosa.de/id/qucosa%3A22804.

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Elektronen- und Positronenstrahlen mit niedrigsten Emittanzen und hohen Strömen werden in zukünftigen Linearbeschleunigern, wie zum Beispiel dem Compact Linear Collider (CLIC), benötigt, um die geforderte Leuchtkraft für physikalische Experimente bereit zu stellen. Diese Strahlen können in Dämpfungsringen, ausgestattet mit starken, supraleitenden Dämpfungswigglermagneten, erzeugt werden. In dieser Arbeit sind Designkonzepte verschiedener supraleitender Dämpfungswigglermagnete entwickelt worden. Testspulen sowie Modelle sind gebaut und getestet, elektrische Verbindungstechniken entwickelt worde
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30

Chang, Chia-Yu, and 張家瑜. "A Study on Generation of Wiggle Stereoscopy." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/96829131775250795524.

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碩士<br>國立臺灣科技大學<br>資訊管理系<br>104<br>As the techniques in stereo vision can provide user diversity experience, it becomes more popular now, and can also be used in various fields. One of these techniques called multi-view autostereoscopic display. It provides user immersive experience. In addition, it does not need any wearable device to achieve three-dimensional effect. This technique provides an easier way for amateur users. Currently there are many creations of wiggle stereoscopy, and the creation can be shared easily. However, if the image content is not processed properly, the stereoscopic e
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31

Chang, Sheng-Fuh Richard. "Analysis of dielectric Cerenkov Masers and wiggler Free-Electron Lasers in the millimeter wavelength range." 1991. http://catalog.hathitrust.org/api/volumes/oclc/25734640.html.

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Thesis (Ph. D.)--University of Wisconsin--Madison, 1991.<br>Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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32

Joe, Jurianto. "Beam quality and mode competition in wiggler free-electron lasers and small signal gain of Cerenkov grating masers." 1990. http://catalog.hathitrust.org/api/volumes/oclc/23039624.html.

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