Experimental study of concrete activation compared to MCNP simulations for safety of neutron sources

被引：4
|
作者：
Hajdu, D. [1 ,2 ]
Dian, E. [1 ,3 ,4 ]
Gmeling, K. [1 ]
Klinkby, E. [3 ,5 ]
Cooper-Jensen, C. P. [3 ]
Osan, J. [1 ,6 ]
Zagyvai, P. [1 ,4 ]
机构：
[1] Hungarian Acad Sci, Ctr Energy Res, 29-33 Konkoly Thege M, H-1525 Budapest, Hungary
[2] Univ Pannonia, Inst Radiochem & Radioecol, 10 Egyet, H-8200 Veszprem, Hungary
[3] European Spallat Source ESS ERIC, POB 176, S-22100 Lund, Sweden
[4] Budapest Univ Technol & Econ, Inst Nucl Tech, 9 Muegyet Rakpart, H-1111 Budapest, Hungary
[5] Tech Univ Denmark, DTU Phys RisoCampus, 399 Frederiksborgvej, DK-4000 Roskilde, Denmark
[6] Int Atom Energy Agcy IAEA, IAEA Labs, Nucl Sci & Instrumentat Lab, A-2444 Seibersdorf, Austria
来源：
APPLIED RADIATION AND ISOTOPES | 2021年 / 171卷
基金：
欧盟地平线“2020”;
关键词：
ESS; Neutron activation; Concrete activation; MCNP; Neutron shielding; Cinder;
D O I：
10.1016/j.apradiso.2021.109644
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The neutron activation of shielding materials and the generated decay gamma radiation are well-known issues in terms of occupational exposure. Though the trace elements of shielding concretes can be dominant sources of the produced activity in such cases, their concentrations are often missing from the input data of shielding-related Monte Carlo simulations. For this reason, three concrete types were studied, that were considered in the European Spallation Source (ESS) ERIC. Their composition - including the trace elements - were determined via XRF, PGAA and NAA techniques. Realistic input data were developed for these materials, containing the parent elements of all the dominant radioisotopes, and were validated against measured data of neutron irradiation experiments.
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页数：10
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