Activation of water in the cooling system at the pulsed spallation neutron source, KENS

被引：1

作者：

Itoh, S ^{[1
]}

Miura, T

Furusaka, M

Yasui, S

Ogawa, Y

Kiyanagi, Y

Sasaki, S

Iijima, K

机构：

[1] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

[2] Hokkaido Univ, Grad Sch Engn, Sapporo, Hokkaido 0608628, Japan

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1999年 / 60卷 / 8-9期

关键词：

D O I：

10.1016/S0022-3697(99)00172-9

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We measured the radioactivity of Be-7 and H-3 in the ambient-temperature water moderator cooling system at the pulsed spallation neutron source, KENS, The detected activity of H-3 in cooling water was in agreement with the production estimated from the neutron flux obtained from a neutronic calculation, however, the results of 7Be was only about 0.1% of the estimation. We tried to investigate the distribution of Be-7 trapped in the cooling system. We also measured the time constants of the trapping process, and the result suggests that a large amount of the produced 7Be is trapped in parts of the cooling system with a very short time constant. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1557 / 1559

页数：3

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