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Statements

Subject Item
n2:RIV%2F61989100%3A27350%2F13%3A86084104%21RIV14-MSM-27350___
rdf:type
n7:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1016/j.nimb.2013.01.032
dcterms:description
Compact deuterium–tritium neutron generators emit fast neutrons (14.2 MeV) that have to be thermalized for neutron activation analysis experiments. To maximize thermal neutron flux and minimize epithermal and fast neutron fluxes across the output surface of the neutron generator facility, Monte Carlo calculations (MCNP5; Los Alamos National Laboratory) for different moderator types and widths and collimator and reflector designs have been performed. A thin lead layer close to the neutron generator as neutron multiplier followed by polyethylene moderator and surrounded by a massive lead and nickel collimator and reflector was obtained as the optimum setup. Compact deuterium–tritium neutron generators emit fast neutrons (14.2 MeV) that have to be thermalized for neutron activation analysis experiments. To maximize thermal neutron flux and minimize epithermal and fast neutron fluxes across the output surface of the neutron generator facility, Monte Carlo calculations (MCNP5; Los Alamos National Laboratory) for different moderator types and widths and collimator and reflector designs have been performed. A thin lead layer close to the neutron generator as neutron multiplier followed by polyethylene moderator and surrounded by a massive lead and nickel collimator and reflector was obtained as the optimum setup.
dcterms:title
A system of materials composition and geometry arrangement for fast neutron beam thermalization: An MCNP study A system of materials composition and geometry arrangement for fast neutron beam thermalization: An MCNP study
skos:prefLabel
A system of materials composition and geometry arrangement for fast neutron beam thermalization: An MCNP study A system of materials composition and geometry arrangement for fast neutron beam thermalization: An MCNP study
skos:notation
RIV/61989100:27350/13:86084104!RIV14-MSM-27350___
n7:predkladatel
n8:orjk%3A27350
n3:aktivita
n19:P
n3:aktivity
P(ED1.1.00/02.0070), P(ED2.1.00/03.0082)
n3:cisloPeriodika
březen
n3:dodaniDat
n5:2014
n3:domaciTvurceVysledku
n9:6134505 n9:7772645
n3:druhVysledku
n20:J
n3:duvernostUdaju
n21:S
n3:entitaPredkladatele
n12:predkladatel
n3:idSjednocenehoVysledku
59135
n3:idVysledku
RIV/61989100:27350/13:86084104
n3:jazykVysledku
n13:eng
n3:klicovaSlova
* Collimation; * Thermalization; * Fast neutrons; * MCNP
n3:klicoveSlovo
n4:%2A%20Collimation n4:%2A%20Fast%20neutrons n4:%2A%20MCNP n4:%2A%20Thermalization
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[9CCCBA3E106C]
n3:nazevZdroje
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
n3:obor
n15:BG
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:projekt
n6:ED1.1.00%2F02.0070 n6:ED2.1.00%2F03.0082
n3:rokUplatneniVysledku
n5:2013
n3:svazekPeriodika
298
n3:tvurceVysledku
Uhlář, Radim Pištora, Jaromír Alexa, Petr
n3:wos
000316043200013
s:issn
0168-583X
s:numberOfPages
5
n17:doi
10.1016/j.nimb.2013.01.032
n16:organizacniJednotka
27350