A study of reaction rates of (n, f), (n, gamma) and (n, 2n) reactions in U-nat and Th-232 by the neutron fluence produced in the graphite set-up (GAMMA-3) irradiated by 2.33 GeV deuteron beam

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F11%3A00376762" target="_blank" >RIV/61389005:_____/11:00376762 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1140/epja/i2011-11085-4" target="_blank" >http://dx.doi.org/10.1140/epja/i2011-11085-4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epja/i2011-11085-4" target="_blank" >10.1140/epja/i2011-11085-4</a>

Result language
angličtina
Original language name
A study of reaction rates of (n, f), (n, gamma) and (n, 2n) reactions in U-nat and Th-232 by the neutron fluence produced in the graphite set-up (GAMMA-3) irradiated by 2.33 GeV deuteron beam
Original language description
Spallation neutrons produced in the collision of a 2.33 GeV deuteron beam with a large lead target are moderated by a thick graphite block surrounding the target and used to activate the radioactive samples of U-nat and Th put at three different positions, identified as holes "a", "b" and "c" in the graphite block. Rates of the (n, f), (n, gamma) and (n, 2n) reactions in the two samples are determined using the gamma spectrometry. The ratios of the experimental reaction rates, R(n, 2n)/R(n, f), for 232Th and U-nat are estimated in order to understand the role of the (n, xn) kind of reactions in Accelerator-Driven Subcritical Systems. For the Th-sample, the ratio is similar to 54(10)% in the case of hole "a" and similar to 95(57)% in the case of hole "b" compared to 1.73(20)% for hole "a" and 0.710(9)% for hole "b" in the case of the U-nat sample.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Project
<a href="/en/project/LA08002" target="_blank" >LA08002: Cooperatin of Czech Republic with JINR Dubna in the theoretical and nuclear physics and application of nuclear methods in other fields</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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