Impact of high-energy nuclear data on radioprotection in spallation sources.
The high-energy programme of the HINDAS European project has provided a large amount of experimental data and led to a better understanding of the spallation reaction mechanism and the development of more reliable spallation models. These data, or the new models, which have been implemented into high-energy transport codes, can be now used to predict with a larger confidence or, at least with a known uncertainty, some important quantities for the design of spallation sources. In this paper, examples concerning the residue production in a Pb-Bi target and the high-energy neutrons escaping the target are presented. In the first case, the activity and the amount of radioactive volatile elements that can be released, in case of a containment failure, are calculated and the level of confidence of the calculation is assessed. The second example shows that the models correctly predict the high-energy tail of the neutron spectrum, which is important for radioprotection in the facility.
Leray
S
S
CEA/Saclay, DAPNIA/SPhN, 91191 Gif-sur-Yvette, Cedex, France. sleray@cea.fr
Boudard
A
A
David
J C
JC
Donadille
L
L
Villagrasa
C
C
Volant
C
C
D000465:Algorithms; D004867:Equipment Design / Q000379:methods; D009502:Neutrons; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods*; D011835:Radiation Protection / Q000379:methods*; D011868:Radioisotopes / Q000032:analysis*; D018570:Risk Assessment / Q000379:methods; D012307:Risk Factors; D012984:Software
D011868:Radioisotopes