A simplified GaAs polarized electron source

被引：11

作者：

Al-Khateeb, HM ^{[1
]}

Birdsey, BG ^{[1
]}

Bowen, TC ^{[1
]}

Green, AS ^{[1
]}

Johnston, ME ^{[1
]}

Gay, TJ ^{[1
]}

机构：

[1] Univ Nebraska, Behlen Lab Phys, Lincoln, NE 68588 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1999年 / 70卷 / 10期

关键词：

D O I：

10.1063/1.1150006

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We report operational and construction details of a simplified GaAs polarized electron source. It is contained in a modified 4.63 in. Conflat four-way cross, and uses a single 56 l/s turbomolecular pump. The design incorporates multiple cesiators to extend source lifetime, a new spring-clamp GaAs crystal mounting design to provide uniform crystal heating, and a very simple tubular 90 degrees electrostatic deflector. We also discuss matters related to preparing, heat cleaning, and activating the GaAs crystal. (C) 1999 American Institute of Physics. [S0034- 6748(99)04010-1].

引用

页码：3882 / 3885

页数：4

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