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Spatially uniform calibration of a liquid xenon detector at low energies using Kr-83m
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SYSNO ASEP 0346937 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Spatially uniform calibration of a liquid xenon detector at low energies using Kr-83m Author(s) Manalaysay, A. (CH)
Undagoitia, T.M. (CH)
Askin, A. (CH)
Baudis, L. (CH)
Behrens, A. (CH)
Ferella, A.D. (CH)
Kish, A. (CH)
Lebeda, Ondřej (UJF-V) RID, ORCID, SAI
Santorelli, R. (CH)
Vénos, Drahoslav (UJF-V) RID, SAI, ORCID
Vollhardt, A. (CH)Source Title Review of Scientific Instruments. - : AIP Publishing - ISSN 0034-6748
Roč. 81, č. 7 (2010), 073303/1-073303/8Number of pages 8 s. Language eng - English Country US - United States Keywords DARK-MATTER DETECTOR ; NUCLEAR RECOIL ; ARGON Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders R&D Projects LA318 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LC07050 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10480505 - UJF-V (2005-2011) UT WOS 000281033400015 DOI 10.1063/1.3436636 Annotation A difficult task with many particle detectors focusing on interactions below similar to 100 keV is to perform a calibration in the appropriate energy range that adequately probes all regions of the detector. Because detector response can vary greatly in various locations within the device, a spatially uniform calibration is important. We present a new method for calibration of liquid xenon (LXe) detectors, using the short-lived Kr-83m. This source has transitions at 9.4 and 32.1 keV, and as a noble gas like Xe, it disperses uniformly in all regions of the detector. Even for low source activities, the existence of the two transitions provides a method of identifying the decays that is free of background. We find that at decreasing energies, the LXe light yield increases, while the amount of electric field quenching is diminished. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2011
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