Thesis
Simulating the contribution of the high voltage feedthrough to the background radioactivity for the nEXO neutrinoless double beta decay search
Bachelor of Science (B.S.), Drexel University
Jun 2021
DOI:
https://doi.org/10.17918/00001970
Abstract
Observation of neutrinoless double beta decay would confirm the Majorana nature of neutrinos, and could help explain the abundance of matter compared to anti-mater in our universe. nEXO is a next generation particle physics experiment in search of neutrino-less double beta decay. In this work we simulate the contribution of 208 Tl and 214 Bi present in the nEXO high voltage feedthrough to the background events picked up by our detector in our energy region of interest. We compare the events generated at varying distances from the detector, and calculate the hit efficiency, the probability that a single background event would be picked up by the detector, for each distance for both isotopes. These efficiencies are then fitted to an exponential to allow us to predict the background contributions of distances beyond what we have simulated.
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Details
- Title
- Simulating the contribution of the high voltage feedthrough to the background radioactivity for the nEXO neutrinoless double beta decay search
- Creators
- Xinyu Jiang - Drexel University, Drexel University (1970-)
- Contributors
- Michelle Dolinski (Advisor) - Drexel University, Drexel University (1970-)
- Awarding Institution
- Drexel University
- Degree Awarded
- Bachelor of Science (B.S.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Number of pages
- 27 pages
- Resource Type
- Thesis
- Language
- English
- Academic Unit
- College of Arts and Sciences; Physics; Drexel University
- Other Identifier
- 991021872800404721