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Ultra-stable implanted Rb-83/Kr-83m electron sources for the energy scale monitoring in the KATRIN experiment
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SYSNO ASEP 0392291 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Ultra-stable implanted Rb-83/Kr-83m electron sources for the energy scale monitoring in the KATRIN experiment Author(s) Zbořil, Miroslav (UJF-V) ORCID
Bauer, S. (DE)
Beck, M. (DE)
Bonn, J. (DE)
Dragoun, Otokar (UJF-V) RID, SAI
Jakoubek, J. (CZ)
Johnston, K. (CH)
Kovalík, Alojz (UJF-V) RID, ORCID, SAI
Otten, E. W. (DE)
Schlosser, K. (DE)
Slezák, Martin (UJF-V) RID, ORCID
Špalek, Antonín (UJF-V) RID
Thummler, T. (DE)
Vénos, Drahoslav (UJF-V) RID, SAI, ORCID
Žemlička, J. (CZ)
Weinheimer, C. (DE)Number of authors 16 Source Title Journal of Instrumentation. - : Institute of Physics Publishing - ISSN 1748-0221
Roč. 8, č. 3 (2013), P03009Number of pages 30 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords lasers ; sources ; particle-beams ; spectrometers Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders R&D Projects GAP203/12/1896 GA ČR - Czech Science Foundation (CSF) Institutional support UJF-V - RVO:61389005 UT WOS 000316990700034 DOI 10.1088/1748-0221/8/03/P03009 Annotation The KATRIN experiment aims at the direct model-independent determination of the average electron neutrino mass via the measurement of the endpoint region of the tritium beta decay spectrum. The electron spectrometer of the MAC-E filter type is used, requiring very high stability of the electric filtering potential. This work proves the feasibility of implanted Rb-83/Kr-83m calibration electron sources which will be utilised in the additional monitor spectrometer sharing the high voltage with the main spectrometer of KATRIN. The source employs conversion electrons of Kr-83m which is continuously generated by Rb-83. The K-32 conversion line (kinetic energy of 17.8 keV, natural line width of 2.7 eV) is shown to fulfill the KATRIN requirement of the relative energy stability of +/- 1.6 ppm/month. The sources will serve as a standard tool for continuous monitoring of KATRIN's energy scale stability with sub-ppm precision. They may also be used in other applications where the precise conversion lines can be separated from the low energy spectrum caused by the electron inelastic scattering in the substrate. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2014 Electronic address http://iopscience.iop.org/1748-0221/8/03/P03009/pdf/1748-0221_8_03_P03009.pdf
Number of the records: 1