ESTIMATION OF THE ANISOTROPY EMISSION OF LPN/CIEMAT NEUTRON SOURCES: EFFECT OF HEAVY CAPSULE HOLDERS.
241Am-Be. 252Cf
Monte Carlo
anisotropy factor
neutron source
Journal
Radiation protection dosimetry
ISSN: 1742-3406
Titre abrégé: Radiat Prot Dosimetry
Pays: England
ID NLM: 8109958
Informations de publication
Date de publication:
31 Dec 2019
31 Dec 2019
Historique:
received:
13
11
2018
revised:
15
02
2019
accepted:
19
03
2019
pubmed:
23
7
2019
medline:
2
9
2020
entrez:
23
7
2019
Statut:
ppublish
Résumé
In order to estimate the anisotropy emission of 241Am-Be and 252Cf neutron sources from the Spanish Neutron Standards Laboratory (LPN/CIEMAT) detailed models of sources capsules and capsule holders were designed with the MCNPX code. Simulations of the sources inside the capsules without the capsule holders were done to validate the MC model by comparison with experimental results provided by other authors. After that, the capsule holders were incorporated to the simulation. In general, a good agreement has been found between measurements and our calculations. Results show the additional encapsulations have significant influence on anisotropy factors, energy spectra and dose rates.
Identifiants
pubmed: 31329988
pii: 5476796
doi: 10.1093/rpd/ncz050
doi:
Substances chimiques
Californium
975X05H15A
Americium-241
SK9YL6NK5M
Americium
VW92PHU2UY
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
452-461Informations de copyright
© The Author(s) 2019. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.