Core concept of simultaneous transmutation of six LLFP nuclides using a fast reactor

被引：14

作者：

Wakabayashid, Toshio ^{[1
]}

Takahashi, Makoto ^{[2
]}

Chiba, Satoshi ^{[3
]}

Takaki, Naoyuki ^{[4
]}

Tachi, Yoshiaki ^{[5
]}

Tahara, Yoshihisa ^{[4
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Aoba Ku, 6-6-11 Aoba, Sendai, Miyagi 9808579, Japan

[2] Tohoku Univ, Grad Sch Engn, Sendai, Miyagi, Japan

[3] Tokyo Inst Technol, Lab Adv Nucl Energy, Tokyo, Japan

[4] Tokyo City Univ, Dept Nucl Safety Engn, Tokyo, Japan

[5] Japan Atom Energy Agcy, Oarai Res & Dev Ctr, Tokai, Ibaraki, Japan

来源：

NUCLEAR ENGINEERING AND DESIGN | 2019年 / 352卷

关键词：

Fast reactor; Six LLFP nuclides; Simultaneous transmutation; YD2; moderator; Support ratio; MA;

D O I：

10.1016/j.nucengdes.2019.110208

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：

The core concept of simultaneous transmutation of six long-lived fission products (LLFP: Se-79, Zr-93, Tc-99, Pd-107, I-129, and Cs-135) was investigated using MONJU fast reactor by maintaining all 6 LLFP nuclides support ratios at 1 or greater. By loading the six LLFP nuclides with the partial use of moderator into the blanket, the shield, the axial blanket, a part of gas plenum region and the axial shield, the effective half-lives of the LLFP nuclides were greatly reduced while maintaining the support ratios at 1 or greater. A new transmutation system for the six LLFPs based on a fast reactor core was constructed. It was also found that the basic core characteristics of the LLFP loaded core: the sodium void coefficient, Doppler coefficient and power distribution, did not differ greatly from those of normal conventional fast reactors.

引用

页数：6

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