Neutron Production in Thick Targets Irradiated with High-Energy Ions

Autor:	M. Zamani-Valasiadou, M.I. Krivopustov, R. Brandt, Reinhard Odoj, Wolfgang Ensinger, W. Westmeier, S.R. Hashemi-Nezhad
Rok vydání:	2011
Předmět:	Nuclear physics Physics High energy business.industry General Physics and Astronomy Neutron Spallation Irradiation Atomic physics Radiation protection business Ion
Zdroj:	Physics Research International. 2011:1-12
ISSN:	2090-2239 2090-2220
Popis:	The neutron production in thick targets irradiated with 1 GeV protons was studied experimentally, and results are well understood with model calculations, including MCNPX 2.7a. However, one observes very large neutron production rates in the interaction of 44 GeV12C onto thick Cu-, Pb-, and U-targets beyond calculated rates. The experimental spallation product yield curve in a 20 cm thick Cu target irradiated with 72 GeV40Ar also cannot be reproduced by several model codes, including MCNPX 2.7a. This may be due to secondary fragments produced in high energy ( GeV) heavy-ion interactions which destroy target nuclei more effectively than primary ions. These observed experimental facts constitute “unresolved problems” from a fundamental point of view. It may have an impact on radiation protection issues for future heavy-ion accelerators.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8dbb01c0d2b3cbb38521693f73c5aadd https://doi.org/10.1155/2011/128429 Zobrazit plný text záznamu Plný text ve formátu PDF