Neutronics design of the low aspect ratio tokamak reactor, VECTOR

被引：14
|
作者：
Nishitani, T [1 ]
Yamauchi, M
Nishio, S
Wada, A
机构：
[1] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan
[2] Startcom Co Ltd, Tokai, Ibaraki 3191105, Japan
来源：
FUSION ENGINEERING AND DESIGN | 2006年 / 81卷 / 8-14期
关键词：
neutronics; VECTOR; tritium breeding ratio; shield; lithium lead; VH2;
D O I：
10.1016/j.fusengdes.2005.09.059
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 neutronic study has been carried out for VECTOR, which is a low aspect ratio tokamak with the aspect ratio of 2.3, to achieve simultaneously sufficient shielding for super-conducting toroidal field coils (TFCs) and tritium breeding ratio (TBR) larger than unity, using the three-dimensional Monte Carlo neutron transport code MCNP-4C. The tritium production is mainly made by outboard blankets consisting of the self-cooled lithium lead (LiPb) as tritium breeding and neutron multiplying material, and the reduced activation ferritic steel F82H as structural material. The inboard blanket consisting of vanadium hydrate (VH2) and F82H as structural material plays the role of radiation shield for the TFCs. Adding Be layers to the LiPb layers effectively improves the TBR. By employing a 0.8 m thick inboard blanket with a 0.13 m thick LiPb layer, sufficient shielding for the inboard TFC and a total TBR of 1.08 are achieved. (c) 2005 Published by Elsevier B.V.
引用
收藏
页码：1245 / 1249
页数：5
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