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

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    0360630 - ÚJF 2012 RIV GB eng J - Journal Article
    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
    R&D Projects: GA MŠMT LC07050
    Institutional research plan: CEZ:AV0Z10480505
    Keywords : Photoelectron * Neutrino mass * Electron spectrometer
    Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
    Impact factor: 1.172, year: 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.
    Permanent Link: http://hdl.handle.net/11104/0006494

     
     
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