Similarities in divertor erosion/redeposition and deuterium retention patterns between the tokamaks ASDEX Upgrade, DIII-D and JET

被引：42

作者：

Whyte, DG ^{[1
]}

Coad, JP

Franzen, P

Maier, H

机构：

[1] Univ Calif San Diego, La Jolla, CA 92093 USA

[2] JET Joint Undertaking, Abingdon, Oxon, England

[3] EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany

来源：

NUCLEAR FUSION | 1999年 / 39卷 / 08期

关键词：

D O I：

10.1088/0029-5515/39/8/306

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The similar poloidal patterns of divertor erosion and redeposition of the ASDEX Upgrade, DIII-D and JET tokamaks are examined by comparing hydrogen isotope retention at the surfaces of divertor tiles. The outer divertor strike point undergoes net erosion. The inner divertor is a region of net redeposition, with deuterium co-deposition rates similar to 20 mu g m(2) s(-1) for all three devices; despite their differences in geometry, size and plasma facing materials. This extrapolates to an unacceptably high tritium retention rate in a DT burning steady state tokamak.

引用

页码：1025 / 1029

页数：5

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