Počet záznamů: 1

A new monitor set for the determination of neutron flux parameters in short-time k0-NAA

  1. 1.
    0366303 - UJF-V 2012 RIV NL eng J - Článek v odborném periodiku
    Kubešová, Marie - Kučera, Jan - Fikrle, Marek
    A new monitor set for the determination of neutron flux parameters in short-time k0-NAA.
    Nuclear Instruments & Methods in Physics Research Section A. Roč. 656, č. 1 (2011), s. 61-64 ISSN 0168-9002
    Grant CEP: GA ČR GA202/09/0363
    Výzkumný záměr: CEZ:AV0Z10480505
    Klíčová slova: Short-time activation analysis * ko standartizacion * neutron flux parameters
    Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače
    Impakt faktor: 1.207, rok: 2011

    Multipurpose research reactors such as LVR-15 in Řež require monitoring of the neutron flux parameters (f, α) in each batch of samples analyzed when k0 standardization in NAA is to be used. The above parameters may change quite unpredictably, because experiments in channels adjacent to those used for NAA require an adjustment of the reactor operation parameters and/or active core configuration. For frequent monitoring of the neutron flux parameters the bare multi-monitor method is very convenient. The well-known Au–Zr tri-isotopic monitor set that provides a good tool for determining f and α after long-time irradiation is not optimal in case of short-time irradiation because only a low activity of the 95Zr radionuclide is formed.
    Trvalý link: http://hdl.handle.net/11104/0201350