Počet záznamů: 1

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

  1. 1.
    0360630 - UJF-V 2012 RIV GB eng J - Článek v odborném periodiku
    Dragoun, Otokar - Špalek, Antonín - Kašpar, Jaromír - Bonn, J. - Kovalík, Alojz - Otten, E.W. - Vénos, Drahoslav - Weinheimer, Ch.
    Feasibility of photoelectron sources with sharp lines of stable energy between 20 and 80 keV.
    Applied Radiation and Isotopes. Roč. 69, č. 4 (2011), s. 672-677 ISSN 0969-8043
    Grant CEP: GA MŠk LC07050
    Výzkumný záměr: CEZ:AV0Z10480505
    Klíčová slova: Photoelectron * Neutrino mass * Electron spectrometer
    Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače
    Impakt faktor: 1.172, rok: 2011

    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 Am-241, Sn-119m, Te-125m and Cd-109 with activities of 0.55-3.7 GBq. Photoelectrons ejected by Am-241 gamma- and X-rays from Co convertors were measured with two different electron spectrometers and obtained energy spectra were compared with Monte Carlo predictions.
    Trvalý link: http://hdl.handle.net/11104/0006494