High-flux white neutron source based on p(35)-Be reactions for activation experiments at NPI

High-flux white neutron source based on p(35)-Be reactions for activation experiments at NPI

WoS Article

The concept of International Fusion Material Irradiation Facility (IFMIF) is based on the d(40)-Li neutron source reaction which produces the white neutron spectrum with mean energy of 14 MeV, energy range with high intensity of neutron beam up to 35 MeV, and weak tail up to 55 MeV. At the Nuclear Physics Institute of the ASCR in Rez near Prague, the source reaction of p+Be was investigated for proton energy of 35 MeV and beam current intensity of 9.2 mu A. The produced white spectrum with neutron flux up to 10(11) cm(-2) s(-1) was determined by the dosimetry foils activation technique at two sample-to-target distances and validated against the Monte Carlo predictions. The neutron field of these high-flux p(35)-Be white neutron source represents the useful tool for experimental simulation of the spectrum of the IFMIF facility, validating the activation cross-section data in the energy range relevant to the IFMIF, studying the radiation hardness of electronics against the high-energy neutron fields, and various activation experiments.

The concept of International Fusion Material Irradiation Facility (IFMIF) is based on the d(40)-Li neutron source reaction which produces the white neutron spectrum with mean energy of 14 MeV, energy range with high intensity of neutron beam up to 35 MeV, and weak tail up to 55 MeV. At the Nuclear Physics Institute of the ASCR in Rez near Prague, the source reaction of p+Be was investigated for proton energy of 35 MeV and beam current intensity of 9.2 mu A. The produced white spectrum with neutron flux up to 10(11) cm(-2) s(-1) was determined by the dosimetry foils activation technique at two sample-to-target distances and validated against the Monte Carlo predictions. The neutron field of these high-flux p(35)-Be white neutron source represents the useful tool for experimental simulation of the spectrum of the IFMIF facility, validating the activation cross-section data in the energy range relevant to the IFMIF, studying the radiation hardness of electronics against the high-energy neutron fields, and various activation experiments.

Neutron generator; Accelerator; Dosimetry foils activation method; Neutron spectrometry; Gamma-spectrometry; Reaction rate

Neutron generator; Accelerator; Dosimetry foils activation method; Neutron spectrometry; Gamma-spectrometry; Reaction rate

ŠTEFÁNIK, M.; BÉM, P.; GOTZ, M.; KATOVSKÝ, K.; MAJERLE, M.; NOVÁK, J.; ŠIMEČKOVÁ, E.

2015

02.11.2014

PERGAMON-ELSEVIER SCIENCE LTD

THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND

0969-806X

RADIATION PHYSICS AND CHEMISTRY

104

11

United Kingdom of Great Britain and Northern Ireland

306

309

4