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Statements

Subject Item
n2:RIV%2F68407700%3A21670%2F10%3A00225890%21RIV15-MSM-21670___
rdf:type
skos:Concept n19:Vysledek
rdfs:seeAlso
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5873779
dcterms:description
A number of radiation-related applications in space such as γ-ray detection demands a flexible and wide-range γ-ray source which can serve as calibrating and testing facility for γ-ray detectors and γ-ray sensitive devices. A dedicated wide energy range γ-ray facility with adjustable and modular segments designed for γ-ray detector calibration and testing was built. Gamma rays are obtained from thermal neutron capture, which is the most suitable and cost efficient way how to provide discrete γ rays with energy above 3 MeV and of reasonable intensity. With appropriate and interchangeable targets the facility can generate γ rays with energy up to 10 MeV. Target materials of elements with high thermal neutron capture cross-section such as chrome, iron, chlorine, nickel and titanium provide suitable spectra. As neutron source <sup>252</sup>Cf or <sup>241</sup>Am-Be radionuclide sources with emission rate around 10<sup>6</sup> neutrons/s are used. The emitted fast neutrons are moderated by a modular interchangeable system of elements containing light materials such as graphite, water, heavy water or paraffin. Different geometries and moderator-target combinations have been tested and optimized; the best of them are presented. The facility is optimized with respect to space applications and needs by the European Space Agency (ESA). Performance of the facility is demonstrated by calibration spectra measured by HPGe and scintillator detectors (LaBr<sub>3</sub>, NaI(Tl)). A number of radiation-related applications in space such as γ-ray detection demands a flexible and wide-range γ-ray source which can serve as calibrating and testing facility for γ-ray detectors and γ-ray sensitive devices. A dedicated wide energy range γ-ray facility with adjustable and modular segments designed for γ-ray detector calibration and testing was built. Gamma rays are obtained from thermal neutron capture, which is the most suitable and cost efficient way how to provide discrete γ rays with energy above 3 MeV and of reasonable intensity. With appropriate and interchangeable targets the facility can generate γ rays with energy up to 10 MeV. Target materials of elements with high thermal neutron capture cross-section such as chrome, iron, chlorine, nickel and titanium provide suitable spectra. As neutron source <sup>252</sup>Cf or <sup>241</sup>Am-Be radionuclide sources with emission rate around 10<sup>6</sup> neutrons/s are used. The emitted fast neutrons are moderated by a modular interchangeable system of elements containing light materials such as graphite, water, heavy water or paraffin. Different geometries and moderator-target combinations have been tested and optimized; the best of them are presented. The facility is optimized with respect to space applications and needs by the European Space Agency (ESA). Performance of the facility is demonstrated by calibration spectra measured by HPGe and scintillator detectors (LaBr<sub>3</sub>, NaI(Tl)).
dcterms:title
Wide energy range gamma-ray calibration facility Wide energy range gamma-ray calibration facility
skos:prefLabel
Wide energy range gamma-ray calibration facility Wide energy range gamma-ray calibration facility
skos:notation
RIV/68407700:21670/10:00225890!RIV15-MSM-21670___
n3:aktivita
n17:I
n3:aktivity
I
n3:dodaniDat
n14:2015
n3:domaciTvurceVysledku
n7:9985522 n7:1370391 n7:8703353 n7:5310962 n7:2321017
n3:druhVysledku
n12:D
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
298818
n3:idVysledku
RIV/68407700:21670/10:00225890
n3:jazykVysledku
n11:eng
n3:klicovaSlova
detector calibration; gamma spectroscopy; prompt gamma-rays; thermal neutron capture; European Space Agency (ESA); cosmic space applications
n3:klicoveSlovo
n5:thermal%20neutron%20capture n5:prompt%20gamma-rays n5:European%20Space%20Agency%20%28ESA%29 n5:gamma%20spectroscopy n5:cosmic%20space%20applications n5:detector%20calibration
n3:kontrolniKodProRIV
[877950F4EE3B]
n3:mistoKonaniAkce
Knoxville (Tennessee)
n3:mistoVydani
Piscataway (New Jersey)
n3:nazevZdroje
2010 IEEE Nuclear Science Symposium Conference Record (NSS/MIC)
n3:obor
n22:BG
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
8
n3:rokUplatneniVysledku
n14:2010
n3:tvurceVysledku
Owens, A. Kroupa, Martin Quarati, F. Šolc, Jaroslav Králík, M. Janout, Zdeněk Pospíšil, Stanislav Krejčí, František
n3:typAkce
n9:WRD
n3:wos
000306402900074
n3:zahajeniAkce
2010-10-30+02:00
s:issn
1095-7863
s:numberOfPages
5
n15:doi
10.1109/NSSMIC.2010.5873779
n4:hasPublisher
IEEE
n10:isbn
978-1-4244-9106-3
n20:organizacniJednotka
21670