Feasibility of photoelectron sources with sharp lines of stable energy between 20 and 80 keV

作者：Dragoun O; Spalek A; Kaspar J; Bonn J; Kovalik A; Otten E W; Venos D^*; Weinheimer Ch

来源：Applied Radiation and Isotopes, 2011, 69(4): 672-677.

DOI：10.1016/j.apradiso.2010.12.015

• Photoelectron
• Neutrino mass
• Electron spectrometer
• Gamma-ray emitter
• Electron energy standard

Photo-absorption of gamma-rays in thin Al, Co, Ti, and Mo convertors was examined with the aim to produce quasi monoenergetic photoelectrons having an energy spread of 0.5-4.7 eV about mean kinetic energies at discrete values between 18632 and 80321 eV. The photoelectron rates were estimated for commercial photon sources of (241)Am, (119m)Sn, (125m)Te and (109)Cd with activities of 0.55-3.7 GBq. Photoelectrons ejected by (241)Am gamma- and X-rays from Co convertors were measured with two different electron spectrometers and obtained energy spectra were compared with Monte Carlo predictions.

• 出版日期2011-4