Assessment of sky-shine in DEMO during breeding blanket maintenance

被引：6

作者：

Kotnik, Domen ^{[1
,2
]}

Kos, Bor ^{[1
]}

Lengar, Igor ^{[1
]}

Cufar, Aljaz ^{[1
]}

Bachmann, Christian ^{[3
]}

Snoj, Luka ^{[1
,2
]}

机构：

[1] Jozef Stefan Inst, Reactor Phys Dept, Jamova Cesta 39, SI-1000 Ljubljana, Slovenia

[2] Univ Ljubljana, Fac Math & Phys, Jadranska Ulica 19, SI-1000 Ljubljana, Slovenia

[3] Eurofus PMU, Boltzmannstr 2, D-85748 Garching, Germany

来源：

FUSION ENGINEERING AND DESIGN | 2021年 / 167卷

关键词：

Skyshine; DEMO; ADVANTG; MCNP; VALIDATION; CODE;

D O I：

10.1016/j.fusengdes.2021.112348

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

A two-step hybrid transport approach utilizing ADVANTG for variance reduction and MCNP for particle transport was used to assess sky-shine dose rates around the future DEMO reactor. Specifically, optimization of the required thickness of the reinforced concrete building around the tokamak to meet the dose limitation at the DEMO site boundary during the most interesting and potentially problematic scenario of breeding blanket maintenance. The results show that the currently assumed thickness of the maintenance hall domed roof, 1.5 m, is sufficient. Furthermore, based on the thickness variation analysis, the dome thickness could be reduced to 1 m and still suffice for the sky-shine radiation shielding criteria.

引用

页数：5

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