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

Ryoji Nagai; Ryoichi Hajima; Nobuyuki Nishimori; Toshiya Muto; Masahiro Yamamoto; Yosuke Honda; Tsukasa Miyajima; Hokuto Iijima; Masao Kuriki; Makoto Kuwahara; Shoji Okumi; Tsutomu Nakanishi

doi:10.1063/1.3354980

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

Ryoji Nagai, Ryoichi Hajima, Nobuyuki Nishimori, Toshiya Muto, Masahiro Yamamoto, Yosuke Honda, Tsukasa Miyajima, Hokuto Iijima, Masao Kuriki, Makoto Kuwahara, Shoji Okumi, Tsutomu Nakanishi

Research Center for Electron Photon Science (ELPH)

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

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.

Original language	English
Article number	033304
Journal	Review of Scientific Instruments
Volume	81
Issue number	3
DOIs	https://doi.org/10.1063/1.3354980
Publication status	Published - 2010

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10.1063/1.3354980

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title = "High-voltage testing of a 500-kV dc photocathode electron gun",

abstract = "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.",

author = "Ryoji Nagai and Ryoichi Hajima and Nobuyuki Nishimori and Toshiya Muto and Masahiro Yamamoto and Yosuke Honda and Tsukasa Miyajima and Hokuto Iijima and Masao Kuriki and Makoto Kuwahara and Shoji Okumi and Tsutomu Nakanishi",

note = "Funding Information: This work was partially supported by the MEXT Quantum Beam Technology Program, the KEK Promotion of collaborative research programs in universities, and the JSPS Grants-in-Aid for Scientific Research in Japan (20360424).",

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doi = "10.1063/1.3354980",

language = "English",

volume = "81",

journal = "Review of Scientific Instruments",

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AU - Nagai, Ryoji

AU - Hajima, Ryoichi

AU - Nishimori, Nobuyuki

AU - Muto, Toshiya

AU - Yamamoto, Masahiro

AU - Honda, Yosuke

AU - Miyajima, Tsukasa

AU - Iijima, Hokuto

AU - Kuriki, Masao

AU - Kuwahara, Makoto

AU - Okumi, Shoji

AU - Nakanishi, Tsutomu

N1 - Funding Information: This work was partially supported by the MEXT Quantum Beam Technology Program, the KEK Promotion of collaborative research programs in universities, and the JSPS Grants-in-Aid for Scientific Research in Japan (20360424).

PY - 2010

Y1 - 2010

N2 - 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.

AB - 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.

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

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