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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F13%3A10190534%21RIV14-MSM-11320___
rdf:type
skos:Concept n16:Vysledek
rdfs:seeAlso
http://dx.doi.org/10.1140/epja/i2013-13156-x
dcterms:description
The neutron flux of the n_TOF facility at CERN was measured, after installation of the new spallation target, with four different systems based on three neutron-converting reactions, which represent accepted cross sections standards in different energy regions. A careful comparison and combination of the different measurements allowed us to reach an unprecedented accuracy on the energy dependence of the neutron flux in the very wide range (thermal to 1 GeV) that characterizes the n_TOF neutron beam. This is a pre-requisite for the high accuracy of cross section measurements at n_TOF. An unexpected anomaly in the neutron-induced fission cross section of U-235 is observed in the energy region between 10 and 30keV, hinting at a possible overestimation of this important cross section, well above currently assigned uncertainties. The neutron flux of the n_TOF facility at CERN was measured, after installation of the new spallation target, with four different systems based on three neutron-converting reactions, which represent accepted cross sections standards in different energy regions. A careful comparison and combination of the different measurements allowed us to reach an unprecedented accuracy on the energy dependence of the neutron flux in the very wide range (thermal to 1 GeV) that characterizes the n_TOF neutron beam. This is a pre-requisite for the high accuracy of cross section measurements at n_TOF. An unexpected anomaly in the neutron-induced fission cross section of U-235 is observed in the energy region between 10 and 30keV, hinting at a possible overestimation of this important cross section, well above currently assigned uncertainties.
dcterms:title
High-accuracy determination of the neutron flux at n_TOF High-accuracy determination of the neutron flux at n_TOF
skos:prefLabel
High-accuracy determination of the neutron flux at n_TOF High-accuracy determination of the neutron flux at n_TOF
skos:notation
RIV/00216208:11320/13:10190534!RIV14-MSM-11320___
n16:predkladatel
n19:orjk%3A11320
n3:aktivita
n5:P n5:Z n5:I
n3:aktivity
I, P(LG13031), Z(MSM0021620859)
n3:cisloPeriodika
12
n3:dodaniDat
n10:2014
n3:domaciTvurceVysledku
n8:1983601 n8:4987020 n8:7876009 n8:6949045
n3:druhVysledku
n21:J
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
77378
n3:idVysledku
RIV/00216208:11320/13:10190534
n3:jazykVysledku
n18:eng
n3:klicovaSlova
beam; science; standards; cern; facility
n3:klicoveSlovo
n9:cern n9:beam n9:facility n9:science n9:standards
n3:kodStatuVydavatele
DE - Spolková republika Německo
n3:kontrolniKodProRIV
[E821E8C6A86A]
n3:nazevZdroje
European Physical Journal A
n3:obor
n6:BG
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
112
n3:projekt
n22:LG13031
n3:rokUplatneniVysledku
n10:2013
n3:svazekPeriodika
49
n3:tvurceVysledku
Bečvář, František Tsinganis, A. Diakaki, M. Berthoumieux, E. Cortes, G. Guerrero, C. Kroll, Jiří Billowes, J. Carrapico, C. Valenta, Stanislav Bosnar, D. Calvino, F. Andrzejewski, J. Boccone, V. Cano-Ott, D. Chin, M. Colonna, N. Krtička, Milan Cerutti, F. Audouin, L. Barbagallo, M. Tarrio, D. Becares, V. Calviani, M. Belloni, F. Cortes-Giraldo, M. A. Dressler, R. Chiaveri, E. Andriamonje, S. Altstadt, S. Duran, I. Brugger, M. Domingo-Pardo, C.
n3:wos
000328351000001
n3:zamer
n20:MSM0021620859
s:issn
1434-6001
s:numberOfPages
11
n12:doi
10.1140/epja/i2013-13156-x
n14:organizacniJednotka
11320