IMPURITY COVERAGE AND DEUTERIUM INVENTORY OF BERYLLIUM AND CARBON 1ST WALL COMPONENTS AFTER BERYLLIUM OPERATION IN JET

被引：23

作者：

PEACOCK, AT

COAD, JP

LAMA, F

BEHRISCH, R

MARTINELLI, AP

MILLS, BE

PICK, M

PARTRIDGE, J

SIMPSON, JCB

ZHU, YK

机构：

[1] SANDIA NATL LABS,LIVERMORE,CA 94551

[2] MAX PLANCK INST PLASMA PHYS,W-8046 GARCHING,GERMANY

[3] CULHAM LAB,ABINGDON OX14 3DB,OXON,ENGLAND

来源：

JOURNAL OF NUCLEAR MATERIALS | 1990年 / 176卷

关键词：

D O I：

10.1016/0022-3115(90)90067-W

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

During 1989, following a brief all carbon phase, JET was operated with an evaporated beryllium film on all the plasma facing surfaces and then, in a third phase, with bulk beryllium used for the belt limiters and one set of antenna protection tiles. Subsequent analysis of wall components and long term samples (LTS) using Beta Backscatter and Ion Beam Analysis has been conducted to determine the condition of the First Wall and its deuterium inventory after beryllium operation. Ex-situ analysis of components where deposition occurs during operation shows mixed carbon and beryllium layers with an approximate ratio 1:1 and some localised higher Z components. The deuterium inventory situation is littled changed by the introduction of beryllium. Similar surface levels of deuterium, approximately 1 x 10(22) atoms m-2, have been seen for both carbon and beryllium belt limiter tiles.

引用

页码：326 / 331

页数：6

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