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Publication  > Articles in Impacted Journals  > 'Ultra-stable implanted Rb-83/Kr-83m electron sources for the energy scale monitoring in the KATRIN experiment'
Ultra-stable implanted Rb-83/Kr-83m electron sources for the energy scale monitoring in the KATRIN experiment

Author
Zboril M. Univ Munster, Inst Kernphys, D-48149 Munster, Germany
Bauer S. Univ Munster, Inst Kernphys, D-48149 Munster, Germany
Beck M. Univ Munster, Inst Kernphys, D-48149 Munster, Germany
Bonn J. Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany
Dragoun O. NPI ASCR
Jakůbek Jan, Ing. Ph.D. IEAP
Johnston K. CERN, Dept Phys, CH-1211 Geneva 23, Switzerland
Kovalik A. Acad Sci Czech Republic, Inst Nucl Phys, CZ-25068 Rez, Czech Republic
Otten E. W. Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany
Schlosser K. Karlsruhe Inst Technol, Inst Kernphys, D-76131 Karlsruhe, Germany
Slezak M. Acad Sci Czech Republic, Inst Nucl Phys, CZ-25068 Rez, Czech Republic
Spalek A. Acad Sci Czech Republic, Inst Nucl Phys, CZ-25068 Rez, Czech Republic
Thummler T. Karlsruhe Inst Technol, Inst Kernphys, D-76131 Karlsruhe, Germany
Venos D. Acad Sci Czech Republic, Inst Nucl Phys, CZ-25068 Rez, Czech Republic
Žemlička Jan, Ing. IEAP
Weinheimer C. Univ Munster, Inst Kernphys, D-48149 Munster, Germany

Year
2013

Scientific journal
JINST, Volume: 8 Article Number: P03009 DOI: 10.1088/1748-0221/8/03/P03009

Web


Abstract
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.
Projects


Cite article as:
M. Zboril, S. Bauer, M. Beck, J. Bonn, O. Dragoun, J. Jakůbek, K. Johnston, A. Kovalik, E. Otten, K. Schlosser, M. Slezak, A. Spalek, T. Thummler, D. Venos, J. Žemlička, C. Weinheimer, "Ultra-stable implanted Rb-83/Kr-83m electron sources for the energy scale monitoring in the KATRIN experiment", JINST, Volume: 8 Article Number: P03009 DOI: 10.1088/1748-0221/8/03/P03009 (2013)

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