Measurement of the neutron fluence on the spallation source at Dubna
Result description
A Th-232 activation sample was exposed directly to the spallation neutrons produced by 1 GeV proton colliding with a lead target and other samples of Au-197, Bi-209, Co-59, In-115 and Ta-181 were irradiated by moderated neutrons after passing through 6 cm of paraffin. Different (n, ?) and (n, xn) reaction products in Th-232, Au-197 and Bi-209 samples are analyzed by gamma-ray spectrometry to measure the neutron fluence at the positions of the samples. For this purpose a histogram of 'flat' spectrum averaged neutron cross-sections in over thirty given energy groups was determined from the PREPRO-2000 software. Results of measurements are compared with Monte-Carlo simulations by the Dubna CASCADE code. Experimental values for both spallation and moderated neutron fluences are in reasonable agreement with the CASCADE code.
Keywords
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Measurement of the neutron fluence on the spallation source at Dubna
Original language description
A Th-232 activation sample was exposed directly to the spallation neutrons produced by 1 GeV proton colliding with a lead target and other samples of Au-197, Bi-209, Co-59, In-115 and Ta-181 were irradiated by moderated neutrons after passing through 6 cm of paraffin. Different (n, ?) and (n, xn) reaction products in Th-232, Au-197 and Bi-209 samples are analyzed by gamma-ray spectrometry to measure the neutron fluence at the positions of the samples. For this purpose a histogram of 'flat' spectrum averaged neutron cross-sections in over thirty given energy groups was determined from the PREPRO-2000 software. Results of measurements are compared with Monte-Carlo simulations by the Dubna CASCADE code. Experimental values for both spallation and moderated neutron fluences are in reasonable agreement with the CASCADE code.
Czech name
Měření neutronového toku na spalačním zdroji v Dubně
Czech description
Masivní olověný terč jsme ozařovali protony s energií 1 GeV, ve kterém se produkovaly neutrony. Měřením výtěžků reakcí (n,gamma) a (n,xn) na 232Th, 209Bi a 197Au jsme stanovili tok neutronů dopadající na tyto terče.
Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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Result continuities
Project
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Kerntechnik
ISSN
0932-3902
e-ISSN
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Volume of the periodical
70
Issue of the periodical within the volume
3
Country of publishing house
DE - GERMANY
Number of pages
6
Pages from-to
127-132
UT code for WoS article
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EID of the result in the Scopus database
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Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
BG - Nuclear, atomic and molecular physics, accelerators
Year of implementation
2005