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Dissertations / Theses on the topic 'Bolometri'

Author: Grafiati

Published: 9 March 2023

Last updated: 31 July 2025

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1

BERETTA, MATTIA. "Application and development of scintillation based detectors for the investigation of neutrino physics in double beta decay experiments." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2020. http://hdl.handle.net/10281/261929.

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L’attività di ricerca da me svolta durante il dottorato di ricerca è stata legata all’applicazione e sviluppo di rivelatori a scintillazione criogenici, pensati per la ricerca del decadimento doppio beta senza emissione di neutrini (0νββ). Ho analizzato due possibili implementazioni di questa tecnica: rivelatori ad alte prestazioni basati sulla lettura della luce di scintillazione e rivelatori bolometrici a scintillazione con doppia lettura. Il rivelatore per 0νββ basato sulla scintillazione che ho studiato è costituito da cristalli scintillanti, contenenti l’isotopo candidato al 0νββ, accoppi

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2

Šalomoun, Vojtěch. "Studium teplotních parametrů nanostrukturovaného senzoru pro detekci IR." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-241151.

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3

Theodoro, Victor Cominato. "Estudo espectral das instabilidades MHD no tokamak TCABR." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-18112014-153714/.

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Neste trabalho foram estudadas instabilidades magnetohidrodinâmicas (MHD) utilizando um novo sistema bolométrico que foi instalado no tokamak TCABR para medidas da evolução temporal da potência irradiada. Este novo sistema conta com 24 cordas verticais, capazes de mapear toda uma secção poloidal da coluna de plasma com resolução espacial de aproximadamente 2 cm e uma resolução temporal de 20 µs. Como se sabe, as instabilidades MHD degradam o connamento do plasma e modicam a topologia das superfícies magnéticas, causando a perda da energia do plasma. Por conta disso, compreender essas instabili

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4

Hollister, Matthew Ian. "SCUBA-2 instrument : an application of large-format superconducting bolometer arrays for submillimetre astronomy." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/3855.

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This thesis concerns technical aspects related to the design and operation of the submillimetre common-user bolometer array 2 (SCUBA-2) instrument, a new wide-field camera for submillimetre astronomy currently undergoing commissioning on the James Clerk Maxwell Telescope on Mauna Kea, Hawaii. Offering unprecedented sensitivity and mapping capabilities, SCUBA-2 is expected to make a major impact in surveys of the sky at submillimetre wavelengths, a largely unexplored part of the electromagnetic spectrum, and provide better understanding of the formation and evolution of galaxies, stars and plan

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5

Campbell, E. S. "Millimetre and submillimetre bolometric interferometry." Thesis, University of Cambridge, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597259.

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I start by presenting simulations of the noise performance of Superconductor-Insulator-Superconductor (SIS) direct detectors, combined with op-amp based readout electronics. This involves the combination of non-linear device modelling, with a detailed noise model of both the SIS junction and the readout-electronics. Using this model, I show that an SIS direct detector can be competitive in terms of noise performance with a transition edge sensor, provided the junction is biased well below the gap, and that the gap is tailored to the observing frequency. I then describe a set of experiments aim

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6

Leder, Alexander Friedrich Sebastian. "Rare-event searches with bolometers." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/119106.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 173-185).<br>Rare-event searches have played an integral part in the pursuit of physics beyond the Standard Model, offering us the chance to bridge the disparity between our current understanding and observed phenomena such as Dark Matter (DM) or the nature of neutrino masses. Over the last 30 years, these experiments have grown larger and more sophisticated, allowing us to probe new and exciting theories of the universe. At

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7

Brien, Thomas. "The silicon cold-electron bolometer." Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/77064/.

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This thesis describes the development and testing of two cold-electron bolometers using highly-doped silicon as the absorber. These detectors exhibit both high sensitivity and low time constants. High sensitivity is achieved due to the weak thermal-link between the electrons and the phonons in the silicon absorber at low temperature (< 1 K). Schottky barriers form naturally between the highly-doped silicon absorber and the superconducting contacts. Selective tunnelling of electrons across these Schottky barriers allows the electron temperature in the silicon absorber to be cooled to below the

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8

Youngblood, Brian Joaquin. "Bolometer diagnostics on Alcator C-mod." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/33629.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 2004.<br>Includes bibliographical references (leaves 75-76).<br>Bolometry is a diagnostic technique common to most tokamak fusion experiments. Bolometers are so widespread because they provide an important measure of the energy lost from confined plasmas as radiation, as well as being relatively simple and resilient in their construction. Here the bolometric diagnostics of the Alcator C-mod tokamak, their function, limitations, and the details of their calibration, operation, and maintenance are covered. In add

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9

GAEL, MARIE-MAGDELEINE. "Thermalisation de l'energie dans un bolometre pour la detection d'ions." Paris 7, 1997. http://www.theses.fr/1997PA077139.

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Cette these porte sur l'etude de deux aspects du fonctionnement des bolometres en vue d'application a la detection d'ions : les mecanismes physiques de thermalisation de l'energie deposee et etude de la resolution en energie du detecteur. Du reseau des caracteristiques courant-tension des thermometres nous deduisons les modalites de circulation de la chaleur dans le detecteur. Nous analysons ainsi la fuite thermique vers le bain et nous caracterisons le couplage electrons-phonons du materiau des thermometres. L'etude du bolometre en regime dynamique nous permet de rendre compte du processus de

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10

Leong, Jonathan Ryan Kyoung Ho. "Characterization of the Polarization and Frequency Selective Bolometric Detector Architecture." Case Western Reserve University School of Graduate Studies / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=case1232487119.

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11

Siringo, Giorgio. "PolKa a polarimeter for submillimeter bolometer arrays /." [S.l.] : [s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=967819733.

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12

Aslam, Shahid. "High-temperature superconducting bolometers for space applications." Thesis, University of Oxford, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437380.

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13

Stritzinger, Maximilian. "Type Ia supernovae bolometric properties and new tools for photometric techniques /." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=979066697.

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14

Walker, Gareth Robert. "Integration and optimisation of sensitive bolometric detectors with pulse-tube cryocoolers." Thesis, Cardiff University, 2007. http://orca.cf.ac.uk/54582/.

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The integration of 300 mK semiconductor bolometers and 4 K hot-electron bolometers with commercial pulse tube cryocooler (PTC) systems has been investigated. The process also involved the integration of a two-stage 4He-3He adsorption refrigerator with the PTC to produce a cryogen free sub-Kelvin system. Thermometry electronics with an onboard computer and an internet interface have been developed that allow for remote and/or automatic operation. Methods to reduce excess noise seen in the 300 mK bolometer have been investigated to demonstrate the possibility of using high sensitivity bolometric

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15

Heidenblut, Torsten. "Herstellung und Charakterisierung von Hochtemperatursupraleiter-Bolometern auf gepufferten Siliziumnitrid-Membranen." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=961538058.

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16

Decharat, Adit. "Integration and Packaging Concepts for Infrared Bolometer Arrays." Licentiate thesis, KTH, School of Electrical Engineering (EES), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10690.

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<p> </p><p>Infrared (IR) imaging devices based on energy detection has shown a dramatic development in technology along with an impressive price reduction in recent years. However, for a low-end market as in automotive applications, the present cost of IR cameras is still the main obstacle to broadening their usage. Ongoing research has continuously reduced the system cost. Apart from decreasing the cost of infrared optics, there are other key issues to achieve acceptable system costs, including wafer-level vacuum packaging of the detectors, low vacuum level operation, and the use of standard

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17

Kim, Joo-Hyung. "Micromachined epitaxial colossal mognetoresistors for uncooled infrared bolometer." Doctoral thesis, KTH, Microelectronics and Information Technology, IMIT, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-535.

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<p>High quality perovskite manganites, La1<sub>-x</sub>A<sub>x</sub>MnO<sub>3</sub> (A = Ca, Sr, Ba) are very attractive materials due to their great application potential for magnetic memory, uncooled infrared (IR) microbolometer and spintronics devices. This thesis presents studies of the growth and material characterization (including structural, electrical, magnetic and noise) of epitaxial manganite films on Si and GaAs. Furthermore, investigations about strain effect on structural and electrical properties of manganites, and finally fabrication of self-supported free standing microstructu

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Kim, Joo-Hyung. "Micromachined epitaxial colossal magnetoresistors for uncooled infrared bolometer /." Stockholm, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-535.

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19

Lu, Ming-Lin Ziv 1975. "Micro bolometers and readout circuits for infrared sensing." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=79249.

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There are two major types of detectors for IR imaging and sensing: photon detector and thermal detector. Photon detector converts photon energy directly into electrical signal. Thermal detector, on the other hand, has a temperature-sensitive electrical property and its temperature can be easily altered by incident IR radiation. To reduce noise, both photon detector and previous generation bolometer require cooling. A new generation of uncooled bolometer emerged recently and will be the focus of this study.<br>Micromachining processes were used to fabricate bolometers and bolometric mate

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20

Lentz, William Alexander 1976. "Characterization of noise in uncooled IR bolometer arrays." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/28199.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.<br>Includes bibliographical references (p. 81-82).<br>by William Alexander Lentz.<br>M.Eng.

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21

Öktem, Bülent Abukay Doğan. "High temperature superconducting YBa2Cu3O7 thin flims and bolometers/." [s.l.]: [s.n.], 2006. http://library.iyte.edu.tr/tezler/master/fizik/T000555.pdf.

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22

Marnieros, Stefanos. "Couches minces d'isolant d'anderson application a la bolometrie a tres basse temperature." Paris 11, 1998. http://www.theses.fr/1998PA112119.

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Les bolometres fonctionnant a tres basse temperature mesurent l'energie deposee par ses effets thermiques. Universels, ayant les records de sensibilite dans plusieurs champs de recherche, ils ont permis de realiser ou d'envisager des experiences dont la portee scientifique est majeure : recherche directe des wimps comme candidats pour la matiere noire non baryonique, etude approfondie du corps noir cosmologique dans les prochaines experiences spatiales (planck surveyor, first). J'ai travaille a l'elaboration, la caracterisation et la comprehension au niveau de leurs proprietes fondamentales de

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23

Richter, Heiko Helmut. "Entwicklung von Hot-Electron-Bolometer-Mischern für Terahertz-Heterodynempfänger." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=975329480.

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24

Greenspan, Jonathan. "The fabrication and characterization of metal thin film bolometers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0023/MQ50612.pdf.

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25

Viklund, Jonas. "Developing of an ultra low noise bolometer biasing circuit." Thesis, Uppsala universitet, Fasta tillståndets elektronik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-296698.

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Noise in electronic circuits can sometimes cause problems. It is especially problematic in for example high sensitive sensors and high end audio and video equipment. In audio and video equipment the noise will make its way into the sound and picture reducing the overall quality. Sensors that are constructed to sense extremely small changes can only pick up changes larger than the noise floor of the circuit. By lowering the noise, sensors can achieve higher accuracy. This thesis presents an ultra low noise solution of the biasing circuitry to the bolometer used in one of FLIR Systems high end

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26

Gimbal-Zofka, Yann. "Development and study of luminescent bolometers for neutrino physics." Thesis, Linnéuniversitetet, Institutionen för fysik och elektroteknik (IFE), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-60660.

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This Master thesis aims at designing, assembling and operating a prototypal luminescentbolometer containing a candidate with high Q-value (116Cd and 100Mo)for the study of the neutrinoless double- decay. The crystal is scintillating (with 116CdWO4 and Li2MoO4 compounds). The prototype is designed according to a simple thermal model and cooled down to 18 mK. Data analysis of the 116CdWO4 crystal determines the energy resolution (intrinsicand in the ROI) and the alpha/beta discrimination power. It includes a full interpretation of the background energy spectrum in terms of environmental radioact

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27

Baubert, Jean Benoît Martin. "Superconducting hot electron bolometers on thin membranes for SHAHIRA." Paris 6, 2005. http://www.theses.fr/2005PA066617.

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28

GORET, PASCAL. "Developpements de bolometres pour la recherche de matiere noire." Paris 6, 1993. http://www.theses.fr/1993PA066102.

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Cette these presente un travail effectue dans le cadre d'un projet de developpement de bolometres (cristaux et thermometres) pour la recherche de matiere noire non baryonique. L'etude du fonctionnement statique d'un bolometre de 24 g de saphir a permis de modeliser les resistances thermiques existant entre les differents constituants de ce bolometre. Cette connaissance represente un des elements essentiels pour la comprehension du signal delivre par le detecteur. La comparaison des techniques d'amplification du signal (en courant et en tension) a montre que, pour une meme temperature du cryost

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29

NAPOLITANO, ANDREA. "Design and optimization of a YBCO based superconducting bolometer." Doctoral thesis, Politecnico di Torino, 2022. http://hdl.handle.net/11583/2971121.

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30

Bernert, Matthias. "Analysis of the H-mode density limit in the ASDEX Upgrade tokamak using bolometry." Diss., Ludwig-Maximilians-Universität München, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-162625.

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The high confinement mode (H-mode) is the operational scenario foreseen for ITER, DEMO and future fusion power plants. At high densities, which are favourable in order to maximize the fusion power, a back transition from the H-mode to the low confinement mode (L-mode) is observed. This H-mode density limit (HDL) occurs at densities on the order of, but below, the Greenwald density. In this thesis, the HDL is revisited in the fully tungsten walled ASDEX Upgrade tokamak (AUG). In AUG discharges, four distinct operational phases were identified in the approach towards the HDL. First, there is a

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31

Khalife, Hawraa. "CROSS and CUPID-Mo : future strategies and new results in bolometric search for 0νββ". Thesis, université Paris-Saclay, 2021. http://www.theses.fr/2021UPASP002.

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La désintégration double-beta sans émission de neutrino est une transition nucléaire hypothétique et rare (T₁/₂>10²⁶ ans). Son observation fournirait de précieuses informations sur la nature des neutrinos. En particulier, cela démontrerait que ceux-ci sont des particules de Majorana et qu’il n’y a pas conservation du nombre de lepton. Cette désintégration peut être étudiée avec des bolomètres dont l’absorbeur contient l’isotope susceptible de se désintégrer, mais la possibilité d’analyser ce processus rare dépend crucialement du niveau de bruit de fond dans la région d’intérêt. Une nouvelle

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32

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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33

Armatol, Antoine. "Innovative methods for background rejection in next-generation neutrinoless double beta decay bolometric experiments." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPASP105.

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La recherche de la désintégration double bêta sans émission de neutrino (0ν2β) est un enjeu majeur de la physique contemporaine car son observation démontrerait que le neutrino est une particule de Majorana. La demi-vie du processus étant reliée à la masse effective de Majorana mββ, cela fournirait aussi une mesure de l'échelle de masse du neutrino et une information sur la hiérarchie de masse. L'expérience de prochaine génération CUPID vise à atteindre une sensibilité suffisamment grande pour explorer complètement l'espace des valeurs pour mββ dans le cas de la hiérarchie inversée de masse. E

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34

Stockhausen, Axel [Verfasser]. "Optimization of Hot-Electron Bolometers for THz Radiation / Axel Stockhausen." Karlsruhe : KIT Scientific Publishing, 2013. http://www.ksp.kit.edu.

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35

MacDermid, Kevin. "Design and testing of tuning algorithms for the E and B EXperiment (EBEX)." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=116095.

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Detection of B-mode polarization from the cosmic microwave background would provide compelling evidence for the inflationary paradigm and has thus become a principal goal for experimental cosmologists during the last 5-10 years. A number of high sensitivity experiments have been developed and many are under construction, including the E and B EXperiment (EBEX), a balloon-borne experiment scheduled to take data in 2010. The design of EBEX is presented here, including the scientific motivation for the experiment, and an overview of all its components, with particular attention paid to the read o

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36

Eames, Sara Jennifer. "Novel light absorbing species for a wavelength-selective high-temperature superconducting bolometer /." Full text (PDF) from UMI/Dissertation Abstracts International, 2000. http://wwwlib.umi.com/cr/utexas/fullcit?p3004256.

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37

Longhin, Mattia. "Semiconducting bolometric detectors : material optimization and device design for future room temperature THz imaging arrays." Paris 6, 2009. http://www.theses.fr/2009PA066076.

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L’application à grande échelle des technologies liées au rayonnement terahertz (THz) est encore aujourd’hui limitée par leur complexité et les coûts élevés. Dans ce mémoire, nous proposons des détecteurs bolométriques économiques fonctionnant à température ambiante pour application à l’imagerie THz. Dans ce contexte, nous avons tout d’abord étudié le dépôt de films minces de la phase semiconductrice de l’oxyde YBaCuO et optimisé les caractéristiques structurales et électriques des films minces pour les rendre compatibles avec une technologie CMOS. Nous avons ensuite initié et mis en œuvre de n

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38

Zolotarova, Anastasiia. "Study and selection of scintillating crystals for the bolometric search for neutrinoless double beta decay." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS293/document.

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L'observation de la désintégration double bêta sans émission de neutrino (0ν2β) fournirait des informations essentielles sur la nature du neutrino et son échelle de masse absolue. Ce processus consiste en la transformation simultanée de deux protons en deux neutrons avec l'émission de deux électrons et aucun neutrino. Cette transition n'est possible que si les neutrinos sont égaux aux antineutrinos (nature Majorana du neutrino). Les recherches pour une désintégration à ce point rare représentent un défi technique complexe, car les expériences de prochaine génération visent des sensibilités de

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Raccanelli, Andrea. "HUMBA the hundred millikelvin bolometer array for 2 mm continuum observations /." [S.l.] : [s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=968777686.

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40

Taele, Benedict Molibeli. "III-V semiconducting hopping bolometers for detecting nonequilibrium phonons and astroparticles." Thesis, Lancaster University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322851.

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Northeast, David Bernard. "Hot electron bolometer sensors for millimetre-wave and terahertz wave detection." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6468.

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Thesis (MScEng (Electrical and Electronic Engineering))--Univerity of Stellenbosch, 2011.<br>ENGLISH ABSTRACT: The design and simulation of hot electron bolometer sensors for the detection of millimeter and terahertz wave radiation is presented. These devices can be used for the formation of images or for spectroscopy in these frequency ranges. Many molecules resonate and have absorption spectra over these ranges, allowing for the identi cation, non-destructively and at a distance, of the constitution of many di erent materials. The penetrating ability of the radiation makes mm-wave and

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Otto, Ernst. "Development of superconducting bolometer device technology for millimeter-wave cosmology instruments." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:30a1103a-ea7a-4b08-ba92-665cbd9740e0.

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The Cold-Electron Bolometer (CEB) is a sensitive detector of millimeter-wave radiation, in which tunnel junctions are used as temperature sensors of a nanoscale normal metal strip absorber. The absorber is fed by an antenna via two Superconductor-Insulator-Normal metal (SIN) tunnel junctions, fabricated at both ends of the absorber. Incoming photons excite electrons, heating the whole electron system. The incoming RF power is determined by measuring the tunneling current through the SIN junctions. Since electrons at highest energy levels escape the absorber through the tunnel junctions, it cau

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Bacchus, Ian Dean. "On the development of a far-infrared bolometric detector using a 2DEG as the absorbing medium." Thesis, Cardiff University, 2008. http://orca.cf.ac.uk/54649/.

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This thesis describes the development of a far-infrared bolometric detector using a two-dimensional electron gas (2DEG) as the detecting medium. The 2DEG is formed at a AlGaAs/GaAs heterojunction made of layers of undoped GaAs and AlGaAs and highly doped (5 x lO126 3) AlGaAs. A 2DEG layer grown in this way in a molecular beam epitaxy (MBE) system is generally within 100 nm of the surface of the wafer and is subsequently patterned by etching away the surrounding wafer material and leaving a mesa containing the buried 2DEG. Ohmic contact to the 2DEG is achieved either through a diffusion of char

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Moeen, Mahdi. "Design, Modelling and Characterization of Si/SiGe Structures for IR Bolometer Applications." Licentiate thesis, KTH, Integrerade komponenter och kretsar, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-159762.

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This thesis presents SiGe(C)/Si(C) multi quantum well (MQW) layers individually or in combination with Si(C) Schottky diodes as material structures to detect infrared (IR) radiation. The performance of devices was investigated in terms of SiGe/Si periodicity and quality of SiGe/Si interface. The structures were grown by chemical vapour deposition using GeH4 and SiH4 sources at 650 °C and processed into pixel arrays with sizes of 25×25, 100×100 and 200×200 μm2. The device response to thermal variations was expressed by temperature coefficient of resistance (TCR) and the signal-to-noise-ratio wa

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Miao, Wei. "Investigation of hot electron bolometer mixers for submillimeter multi-pixel receiver applications." Paris 6, 2010. http://www.theses.fr/2010PA066077.

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Les bolomètres à électrons chauds (HEB) supraconducteurs sont aujourd'hui les composants les plus sensibles pour la détection cohérente dans le domaine des ondes THz. Ce travail est centré sur l’étude et le développement des mélangeurs de type HEB à refroidissement par phonons dans une configuration quasi-optique permettant l’application multi pixels. D’abord, nous avons étudié un nouveau concept de mélangeur HEB sur membrane comprenant des éléments de couplage en quasi-optique associés à des micro-miroirs. Le comportement du mélangeur HEB sur membrane a été modélisé en utilisant le modèle "ho

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46

Gaertner, Siegfried. "Systeme de lecture des bolometres optimise pour la mission spatiale planck surveyor." Toulouse 3, 1997. http://www.theses.fr/1997TOU30250.

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Cette these presente des recherches et developpements technologiques concernant les systemes de lecture des bolometres utilisant une modulation electrique et un traitement numerique du signal realise avec des processeurs spatialisables (transputers). Ces etudes ont permis de definir, realiser et tester un systeme optimise pour la mission spatiale planck surveyor de l'esa, dediee principalement aux mesures des fluctuations angulaires du corps noir cosmologique. Cette these comprend cinq parties distinctes : 1. Description scientifique et technique de planck surveyor 2. Presentation du bolometre

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Martin, Michel. "Étude expérimentale de bolomètres rapides à jonctions tunnel métal normal-isolant-supraconducteur." Grenoble INPG, 1996. http://www.theses.fr/1996INPG0206.

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Nous etudions des bolometres bases sur des jonctions tunnel metal normal - isolant - supraconducteur en vue de leur application a la mesure d'energie d'ions retrodiffuses. La fabrication et l'etude de tels bolometres est montre en detail. On s'attache particulierement a l'influence des parametres physiques sur la mesure de temperature.

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48

MacKenzie, Todd. "Extra-galactic and survey science with the submillimeter common user bolometer array-2." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/38054.

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We have carried out a pilot study for the SCUBA-2 'All-Sky' Survey, SASSy, a wide and shallow mapping project at 850 μm, designed to find rare objects, both Galactic and extragalactic. Two distinct sets of exploratory observations were undertaken, and used to test the SASSy approach and data reduction pipeline. The first was a 0.5° x 0.5° map around the nearby galaxy NGC 2559. The galaxy was easily detected at 156 mJy, but no other convincing sources are present in the map. Comparison with other galaxies with similar wavelength coverage indicates that NGC 2559 has relatively warm dust. The

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Hirahara, Ann Satoko 1972. "Fabrication of sensitive high-temperature superconducting bolometers on a yttria-stabilized zirconia membrane." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/32172.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1995.<br>Vita.<br>Includes bibliographical references (leaves 37-38).<br>by Ann Satoko Hirahara.<br>M.S.

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Tenconi, Margherita. "Development of luminescent bolometers and light detectors for neutrinoless double beta decay search." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112224/document.

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L'étude de la double désintégration bêta sans neutrinos joue un rôle important dans plusieurs questions en physique des particules et cosmologie. Ce processus nucléaire hypothétique viole la conservation du nombre leptonique par deux unités et jusqu'à présent il est le seule moyen pratique pour dévoiler la nature du neutrino : sa détection implique forcement que neutrino et antineutrino sont la même particule. En outre, le taux de décroissance est sensible à la masse efficace de Majorana du neutrino, du coup à l'échelle absolue des valeurs propres de la masse et leur hiérarchie. La marque expé

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