Gaseous source of83mKr conversion electrons for the neutrino experiment KATRIN

This is the authors' abstract. We don't add key points for this paper.

The metastable 83m Kr with short half-life of 1.83 h is intended as a space distributed source of monoenergetic electrons for energy calibration and systematic studies in the Karlsruhe tritium neutrino experiment (KATRIN). The efficient production of the parent radionuclide 83 Rb at cyclotron U-120M was implemented. The release of the 83m Kr from zeolite (molecular sieve), in which the parent radionuclide 83 Rb (T 1/2 = 86.2 d) was trapped, was studied under various conditions using the gamma spectroscopy. Residual gas analysis of ultra high vacuum over the zeolite was performed as well.