Počet záznamů: 1  

Position sensitive detection of neutrons in high radiation background field

  1. 1.
    0429337 - ÚTAM 2015 RIV US eng J - Článek v odborném periodiku
    Vavřík, Daniel - Jakůbek, Jan - Vacík, Jiří - Pospíšil, S.
    Position sensitive detection of neutrons in high radiation background field.
    Review of Scientific Instruments. Roč. 85, č. 1 (2014), s. 013304. ISSN 0034-6748. E-ISSN 1089-7623
    Grant CEP: GA MŠMT(CZ) ED1.1.00/02.0060; GA ČR(CZ) GBP108/12/G108; GA TA ČR(CZ) TA01010237
    Institucionální podpora: RVO:68378297 ; RVO:61389005
    Klíčová slova: neutrons * pattern recognition * position sensitive detectors * radiation detectors * silicon detectors
    Kód oboru RIV: JA - Elektronika a optoelektronika, elektrotechnika; BG - Jaderná, atomová a mol. fyzika, urychlovače (UJF-V)
    Impakt faktor: 1.614, rok: 2014
    http://scitation.aip.org/content/aip/journal/rsi/85/1/10.1063/1.4862478

    We present the development of a high-resolution position sensitive device for detection of slow neutrons in the environment of extremely high gamma and e(-) radiation background. We make use of a planar silicon pixelated (pixel size: 55 x 55 mu m(2)) spectroscopic Timepix detector adapted for neutron detection utilizing very thin B-10 converter placed onto detector surface. We demonstrate that electromagnetic radiation background can be discriminated from the neutron signal utilizing the fact that each particle type produces characteristic ionization tracks in the pixelated detector. Particular tracks can be distinguished by their 2D shape (in the detector plane) and spectroscopic response using single event analysis. A Cd sheet served as thermal neutron stopper as well as intensive source of gamma rays and energetic electrons. Highly efficient discrimination was successful even at very low neutron to electromagnetic background ratio about 10(-4).
    Trvalý link: http://hdl.handle.net/11104/0234476

     
     
Počet záznamů: 1  

  Tyto stránky využívají soubory cookies, které usnadňují jejich prohlížení. Další informace o tom jak používáme cookies.