Development of a 500-kv photo-cathode dc gun for erl light sources

N. Nishimori; R. Nagai; R. Hajima; M. Yamamoto; Y. Honda; T. Miyajima; T. Muto; H. Iijima; M. Kuriki; M. Kuwahara; S. Okumi; T. Nakanishi

Development of a 500-kv photo-cathode dc gun for erl light sources

N. Nishimori, R. Nagai, R. Hajima, M. Yamamoto, Y. Honda, T. Miyajima, T. Muto, H. Iijima, M. Kuriki, M. Kuwahara, S. Okumi, T. Nakanishi

Research Center for Electron Photon Science (ELPH)

Research output: Contribution to conference › Paper › peer-review

1 Citation (Scopus)

Abstract

Energy recovery linac (ERL) based next generation light sources require high brightness electron gun. We have developed a 500-kV, 10-mA photocathode DC gun. A segmented ceramic insulator with guard rings is employed to improve robustness at high voltage operation by keeping field emission electrons away from the ceramic surface. We have recently succeeded in applying 500 kV on the ceramics for eight hours without any discharge. This high voltage testing was performed with a simple configuration without NEG pumps, cathode and anode electrodes to mainly study the field emission from a tube supporting the cathode electrode. The same high voltage testing with a full configuration necessary for beam generation was carried out up to 380 kV. Up-to-date status of our gun development will be presented in detail.

Original language	English
Pages	995-997
Number of pages	3
Publication status	Published - 2011
Event	25th International Linear Accelerator Conference, LINAC 2010 - Tsukuba, Ibaraki, Japan Duration: 2010 Sept 12 → 2010 Sept 17

Conference

Conference	25th International Linear Accelerator Conference, LINAC 2010
Country/Territory	Japan
City	Tsukuba, Ibaraki
Period	10/9/12 → 10/9/17

Cite this

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title = "Development of a 500-kv photo-cathode dc gun for erl light sources",

abstract = "Energy recovery linac (ERL) based next generation light sources require high brightness electron gun. We have developed a 500-kV, 10-mA photocathode DC gun. A segmented ceramic insulator with guard rings is employed to improve robustness at high voltage operation by keeping field emission electrons away from the ceramic surface. We have recently succeeded in applying 500 kV on the ceramics for eight hours without any discharge. This high voltage testing was performed with a simple configuration without NEG pumps, cathode and anode electrodes to mainly study the field emission from a tube supporting the cathode electrode. The same high voltage testing with a full configuration necessary for beam generation was carried out up to 380 kV. Up-to-date status of our gun development will be presented in detail.",

author = "N. Nishimori and R. Nagai and R. Hajima and M. Yamamoto and Y. Honda and T. Miyajima and T. Muto and H. Iijima and M. Kuriki and M. Kuwahara and S. Okumi and T. Nakanishi",

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pages = "995--997",

note = "25th International Linear Accelerator Conference, LINAC 2010 ; Conference date: 12-09-2010 Through 17-09-2010",

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TY - CONF

T1 - Development of a 500-kv photo-cathode dc gun for erl light sources

AU - Nishimori, N.

AU - Nagai, R.

AU - Hajima, R.

AU - Yamamoto, M.

AU - Honda, Y.

AU - Miyajima, T.

AU - Muto, T.

AU - Iijima, H.

AU - Kuriki, M.

AU - Kuwahara, M.

AU - Okumi, S.

AU - Nakanishi, T.

PY - 2011

Y1 - 2011

N2 - Energy recovery linac (ERL) based next generation light sources require high brightness electron gun. We have developed a 500-kV, 10-mA photocathode DC gun. A segmented ceramic insulator with guard rings is employed to improve robustness at high voltage operation by keeping field emission electrons away from the ceramic surface. We have recently succeeded in applying 500 kV on the ceramics for eight hours without any discharge. This high voltage testing was performed with a simple configuration without NEG pumps, cathode and anode electrodes to mainly study the field emission from a tube supporting the cathode electrode. The same high voltage testing with a full configuration necessary for beam generation was carried out up to 380 kV. Up-to-date status of our gun development will be presented in detail.

AB - Energy recovery linac (ERL) based next generation light sources require high brightness electron gun. We have developed a 500-kV, 10-mA photocathode DC gun. A segmented ceramic insulator with guard rings is employed to improve robustness at high voltage operation by keeping field emission electrons away from the ceramic surface. We have recently succeeded in applying 500 kV on the ceramics for eight hours without any discharge. This high voltage testing was performed with a simple configuration without NEG pumps, cathode and anode electrodes to mainly study the field emission from a tube supporting the cathode electrode. The same high voltage testing with a full configuration necessary for beam generation was carried out up to 380 kV. Up-to-date status of our gun development will be presented in detail.

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M3 - Paper

AN - SCOPUS:84888345225

SP - 995

EP - 997

T2 - 25th International Linear Accelerator Conference, LINAC 2010

Y2 - 12 September 2010 through 17 September 2010

ER -

Development of a 500-kv photo-cathode dc gun for erl light sources

Abstract

Conference

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