Feasibility of uranium spallation target in accelerator-driven system

被引：11

作者：

Ismailov, Kairat ^{[1
]}

Saito, Masaki ^{[1
]}

Sagara, Hiroshi ^{[1
]}

Nishihara, Kenji ^{[2
]}

机构：

[1] Tokyo Inst Technol, Meguro Ku, Tokyo 1528550, Japan

[2] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan

来源：

PROGRESS IN NUCLEAR ENERGY | 2011年 / 53卷 / 07期

关键词：

Spallation target; Neutron; Uranium; PbBi; Accelerator-driven system; TRANSMUTATION; PRODUCTS;

D O I：

10.1016/j.pnucene.2011.05.019

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 feasibility study on natural uranium spallation target in accelerator-driven system (ADS) for minor actinide (MA) transmutation was performed. As a result of comparative study of uranium and lead-bismuth (PbBi) targets in the bare case without blanket surrounding, it was found that uranium target had better neutron generation performance, but limited by the geometrical size due to high neutron absorption in (238)U. In ADS for MA transmutation, uranium used as target instead of PbBi also absorbs neutrons passing the target area. More realistic concept of pin type uranium spallation target cooled by liquid PbBi was considered aiming at enhancing spallation target performance in terms of neutron generation efficiency and operation temperature. The uranium pin target design had nothing better effects on neutron balance of such system than a conventional PbBi target in ADS and it was concluded that uranium target was not suitable for the full-scale ADS. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：925 / 929

页数：5

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