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复旦大学,上海,200433
Published:01 June 1992
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[1]孙传琛,贺勉宏.α-tross He~-离子源的一项新改进[J].核技术,1992(06):371-373.
Sun Chuanchen He MianhongFudan University. Shanghai 200433. A new improvement on the a-tross He- ion source[J]. Nuclear techniques, 1992, (6): 371-373.
本文叙述对NEC生产的α-tross He
-
源的一个重要零件——“Insert”的形状尺寸作出改进
使该源经常出现的一类故障发生的几率大为减少
从而使该源的寿命大大提高。目前经350 h的运行
情况仍然良好(原来寿命平均仅数十h)。
An improvement both on shape and on size of the insert
a part of the alpha-tross He
ion source made by NEC in USA
reduces greatly the possibility of a kind of trouble
which took place very often in this source
that is the migration of Rb toward canal and BN insulator. As a result
the lifetime becomes much longer than before. Recently it has been running for 350h without any problems.
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