THE DEVELOPMENT OF A SUPER-STABLE DATUM POINT FOR MONITORING THE ENERGY SCALE OF ELECTRON SPECTROMETERS IN THE ENERGY RANGE UP TO 20 keV

0346439 - ÚJF 2011 RIV RU eng J - Journal Article
Vénos, Drahoslav - Zbořil, Miroslav - Kašpar, Jaromír - Dragoun, Otokar - Bonn, J. - Kovalík, Alojz - Lebeda, Ondřej - Lebedev, N. A. - Ryšavý, Miloš - Schlosser, K. - Špalek, Antonín - Weinheimer, C.
THE DEVELOPMENT OF A SUPER-STABLE DATUM POINT FOR MONITORING THE ENERGY SCALE OF ELECTRON SPECTROMETERS IN THE ENERGY RANGE UP TO 20 keV.
Measurement Techniques. Roč. 53, č. 3 (2010), s. 305-312. ISSN 0543-1972. E-ISSN 1573-8906
R&D Projects: GA ČR GA202/06/0002; GA MŠMT LA318; GA MŠMT LC07050; GA MŠMT LA08002
Institutional research plan: CEZ:AV0Z10480505
Keywords : nuclear transition energy * conversion electrons * electron spectrometer
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 0.154, year: 2010

The long-term energy stability of the 7.5 keV and 17.8 keV conversion electrons of the 9.4 keV and 32 keV neutral transitions respectively in Kr-83m, emitted by solid Rb-83/Kr-83m sources, prepared by evaporation in a vacuum, is investigated using two different spectrometers. The results obtained indicate the principal applicability of these Rb-83 sources for monitoring the stability of the energy scale of electron spectrometers in the 20 keV region at the level of +/-60 meV for at least two months, which corresponds to the requirement of the new KATRIN tritium neutrino project. Investigations are being continued using sources produced by implantation of Rb-83 ions into different substrates.
Permanent Link: http://hdl.handle.net/11104/0187469