Dawson, Lauren;
(2023)
Commissioning and Sensitivity Studies for the SuperNEMO Demonstrator Module.
Doctoral thesis (Ph.D), UCL (University College London).
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Abstract
The SuperNEMO experiment will search for neutrinoless double- beta decay. It is a tracker-calorimeter detector, designed to reach a 0νββ half life sensitivity of T1/2 > 1026 years, corresponding to an effective Majorana neutrino mass of 50 - 100 meV. Successful operation of the SuperNEMO tracker requires a pre- cise mixture of gases to be supplied continuously to the detector volume. The purpose of the gas system is to control the fractions of gases, at a given flow rate. Improvements have been made to meet the basic requirements of a safe, radio-pure, remotely moni- tored and controlled gas-delivery system. The SuperNEMO demonstrator module is the first phase of the experiment, with 7 kg of 82Se. Construction and commissioning of the module is well underway, with first data expected in 2022. In preparation for data taking, sensitivity studies have been per- formed on simulated data. Results of the sensitivity and relative errors of two key back- grounds, 208Tl and 214Bi, for the demonstrator module will be presented here. The enhancement of the gas system and integra- tion with slow control will also be presented.
| Type: | Thesis (Doctoral) |
|---|---|
| Qualification: | Ph.D |
| Title: | Commissioning and Sensitivity Studies for the SuperNEMO Demonstrator Module |
| Open access status: | An open access version is available from UCL Discovery |
| Language: | English |
| Additional information: | Copyright © The Author 2023. Original content in this thesis is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) Licence (https://creativecommons.org/licenses/by-nc/4.0/). Any third-party copyright material present remains the property of its respective owner(s) and is licensed under its existing terms. Access may initially be restricted at the author’s request. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10171141 |
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