Measurement of the distribution of Bi-207 depositions on calibration sources for SuperNEMO
- NázevTitle
- Measurement of the distribution of Bi-207 depositions on calibration sources for SuperNEMOMeasurement of the distribution of Bi-207 depositions on calibration sources for SuperNEMO
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- M. Macko, R. Hodák, F. Šimkovic, I. Štekl, J. Žemlička, Y. Mora
- Klíčová slovaKeywords
- Double-beta decay detectors, Detector alignment and calibration methods (lasers, sources, particle-beams)
- ExperimentCollaboration
- SuperNEMO
- DOIDOI
- 10.1088/1748-0221/16/07/T07012
- Časopis / citaceJournal / citation
- Journal of Instrumentation 16(07), T07012 (2021) · ISSN 1748-0221
- RokYear
- 2021
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Podzemní laboratoř LSM - účast České republikyLaboratoire Souterrain de Modane – participation of the Czech Republic
- CitovánoCited by
- 18 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- https://iopscience.iop.org/article/10.1088/1748-0221/16/07/T07012/pdf
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
The SuperNEMO experiment will search for neutrinoless double-beta decay (0νββ), and study the Standard-Model double-beta decay process (2νββ). The SuperNEMO technology can measure the energy of each of the electrons produced in a double-beta (ββ) decay, and can reconstruct the topology of their individual tracks. The study of the double-beta decay spectrum requires very accurate energy calibration to be carried out periodically. The SuperNEMO Demonstrator Module will be calibrated using 42 calibration sources, each consisting of a droplet of Bi-207 within a frame assembly. The quality of these sources, which depends upon the entire Bi-207 droplet being contained within the frame, is key for correctly calibrating SuperNEMO's energy response. In this paper, we present a novel method for precisely measuring the exact geometry of the deposition of Bi-207 droplets within the frames, using Timepix pixel detectors. We studied 49 different sources and selected 42 high-quality sources with the most central source positioning.
The SuperNEMO experiment will search for neutrinoless double-beta decay (0νββ), and study the Standard-Model double-beta decay process (2νββ). The SuperNEMO technology can measure the energy of each of the electrons produced in a double-beta (ββ) decay, and can reconstruct the topology of their individual tracks. The study of the double-beta decay spectrum requires very accurate energy calibration to be carried out periodically. The SuperNEMO Demonstrator Module will be calibrated using 42 calibration sources, each consisting of a droplet of Bi-207 within a frame assembly. The quality of these sources, which depends upon the entire Bi-207 droplet being contained within the frame, is key for correctly calibrating SuperNEMO's energy response. In this paper, we present a novel method for precisely measuring the exact geometry of the deposition of Bi-207 droplets within the frames, using Timepix pixel detectors. We studied 49 different sources and selected 42 high-quality sources with the most central source positioning.