High-voltage testing of a 500-kV dc photocathode electron gun

被引：22

作者：

Nagai, Ryoji ^{[1
]}

Hajima, Ryoichi ^{[1
]}

Nishimori, Nobuyuki ^{[1
]}

Muto, Toshiya ^{[2
]}

Yamamoto, Masahiro ^{[2
]}

Honda, Yosuke ^{[2
]}

Miyajima, Tsukasa ^{[2
]}

Iijima, Hokuto ^{[3
]}

Kuriki, Masao ^{[3
]}

Kuwahara, Makoto ^{[4
]}

Okumi, Shoji ^{[4
]}

Nakanishi, Tsutomu ^{[4
]}

机构：

[1] JAEA, Tokai, Ibaraki 3191195, Japan

[2] High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

[3] Hiroshima Univ, Hiroshima 7398530, Japan

[4] Nagoya Univ, Aichi 4648601, Japan

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2010年 / 81卷 / 03期

关键词：

ceramic insulators; electron guns; photocathodes; ENERGY RECOVERY LINACS; FIELD-EMISSION; ERL; PERSPECTIVES; INSULATION;

D O I：

10.1063/1.3354980

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A high-voltage dc photocathode electron gun was successfully conditioned up to a voltage of 550 kV and a long-time holding test for 8 h was demonstrated at an acceleration voltage of 500 kV. The dc photocathode electron gun is designed for future light sources based on energy-recovery linac and consists of a Cockcroft-Walton generator, a segmented cylindrical ceramic insulator, guard-ring electrodes, a support-rod electrode, a vacuum chamber, and a pressurized insulating gas tank. The segmented cylindrical ceramic insulator and the guard-ring electrodes were utilized to prevent any damage to the insulator from electrons emitted by the support-rod electrode.

引用

页数：5

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