Development of a single vacuum ultra-violet photon-sensing solution for nEXO
department or school: Science, Faculty of
department or school: Physics and Astronomy, Department of
data provider: DSpace
degree campus: UBCV
creator: Gallina, Giacomo
issued: 2021-01-01T08:00:00Z
issued: 2021
related degree: Doctor of Philosophy - PhD
degree grantor: University of British Columbia
description: Silicon PhotoMultiplier (SiPM) technology represents an unprecedented attempt to create an ideal solid-state photon detector, combining the low-light detection capabilities of the previous device generations with all the benefits of a solid-state sensor. For this reason, large-scale low-background cryogenic experiments, such as the next-generation Enriched Xenon Observatory experiment (nEXO), are migrating to a SiPM-based light detection system. nEXO aims to probe the boundaries of the standard model of particle physics by searching for neutrino-less double beta decay of ¹³⁶Xe. The nEXO experiment follows the same detection concept as the EXO-200 experiment, but uses 5 tonnes of liquid xenon inside a vacuum cryostat that is expected to be located at SNOLAB, the Canadian underground science laboratory. Decays in the xenon produce both light and ionization and it is important to measure both to achieve sufficient energy resolution and thus background rejection. In particular, electrons from the ionization drift in an applied electric field toward anode pads where they are measured. The light flash is simultaneously detected by an array of SiPMs. The technical goal of the proposed thesis is to study different SiPMs characteristics in order to choose the best SiPM technology for the nEXO experiment. This thesis will also introduce new mathematical models to better understand Geiger mode properties of SiPMs in order to optimize them for the next generations of double beta decay and dark matter experiments.
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/77762
note: Development of a single vacuum ultra-violetphoton-sensing solution for nEXObyGiacomo GallinaA THESIS SUBMITTED IN PARTIAL FULFILLMENTOF THE REQUIREMENTS FOR THE DEGREE OFDoctor of PhilosophyinTHE FACULTY OF GRADUATE AND POSTDOCTORALSTUDIES(Physics)The University of British Columbia(Vancouver)April 2021© Giacomo Gallina, 2021The following individuals certify that they have read, and recommend to the Fac-ulty of Graduate and Postdoctoral Studies for acceptance, the dissertation entitled:Development of a single vacuum ultra-violet photon-sensing solutionfor nEXOsubmitted by Giacomo Gallina in partial fulfillment of the requirements for thedegree of Doctor of Philosophy in Physics.Examining Committee:Prof. Reiner Kruecken, Department of Physics and Astronomy, University of BritishColumbia, Deputy Director, TRIUMFSupervisorProf. Fabrice Retiere, Department of Physics, Simon Fraser University, ScienceTechnology Department, TRIUMFCo-SupervisorProf. Vesna Sossi, Department of Physics and Astronomy, University of BritishColumbiaSupervisory Committee MemberProf. Janis McKenna, Department of Physics and Astronomy, University of BritishColumbiaSupervisory Committee MemberProf. Douglas Scott, Department of Physics and Astronomy, University of BritishColumbiaSupervisory Committee MemberProf. Scott Oser, Department of Physics and Astronomy, University of BritishColumbiaUniversity ExaminerProf. Russ Algar, Department of Chemistry, University of British ColumbiaUniversity ExaminerProf. Daniel McKinsey, Department of Physics, University of California, BerkeleyExternal ExamineriiAbstractSilicon PhotoMultiplier (SiPM) technology represents an unprecedented at-tempt to create an ideal solid-state photon detector, combining the low-light detec-tion capabilities of the previous device generations with all the benefits of a solid-state sensor. For this reason, large-scale low-background cryogenic experiments,such as the next-generation Enriched Xenon Observatory experiment (nEXO), aremigra…
has type: Thesis/Dissertation
date issued: 2021-05
is shown at: 10.14288/1.0396697
language: eng
degree discipline: Physics
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution-NonCommercial-NoDerivatives 4.0 International
rights URI: http://creativecommons.org/licenses/by-nc-nd/4.0/
scholar level: Graduate
type: Text
identifier URI: http://hdl.handle.net/2429/77762