Investigation of interaction between MeV-ions and first wall from neutron and gamma-ray measurements in JT-60U

被引：9

作者：

Kondoh, T

Kusama, Y

Kimura, H

Saigusa, M

Fujii, T

Moriyama, S

Nemoto, M

Tobita, K

Morioka, A

Nagashima, K

Nishitani, T

机构：

来源：

JOURNAL OF NUCLEAR MATERIALS | 1997年 / 241卷

关键词：

JT-60U; tokamak; fast particle losses; RF heating;

D O I：

10.1016/S0022-3115(97)80100-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Loss of MeV-energy protons to the first wall during H-minority second harmonic ion cyclotron range of frequency (ICRF) heating has been measured for the first time by neutron signals emitted by B-11(p,n)C-11 reaction in B4C coated divertor tiles and boronized tiles in the JT-60U tokamak. Since the reaction has a threshold energy of 3.0 MeV, the neutron signal indicates loss of fast protons whose energy is more than 3 MeV. Measurements of gamma-ray lines emitted from reaction between the fast protons and plasma impurities are also used for measurements of confined protons accelerated up to 5 MeV.

引用

页码：564 / 568

页数：5

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