Feasibility of photoelectron sources for testing the energy scale stablity of the KATRIN beta-ray spectrometer

Details Feasibility of photoelectron sources for testing the energy scale stablity of the KATRIN beta-ray spectrometer Feasibility of photoelectron sources for testing the energy scale stablity of the KATRIN beta-ray spectrometer

2010-03-19

arxiv.org/abs/1003.3758v1

Physics

Nuclear Physics

Nuclear Experiment

22 pages, 3 tables, 11 figures, 58 references

Scientific paper

Photoabsorption of nuclear gamma-rays in thin metallic convertors was examined with the aim to produce monoenergetic photoelectrons of kinetic energy around 18.6 keV and natural width of about 1 eV. Calculations were carried out for commercial photon sources of 241Am (1.1 GBq) and 119mSn (0.5 GBq) irradiating Co and Ti convertors. Photoelectrons ejected by 241Am gamma- and X-rays from Co convertors of various thickness were measured with two electrostatic spectrometers.

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