DC photoemission gun upgrade at the compact ERL

N. Nishimori; R. Hajima; R. Nagai; M. Mori; M. Yamamoto; Y. Honda; T. Miyajima; T. Uchiyama

DC photoemission gun upgrade at the compact ERL

N. Nishimori, R. Hajima, R. Nagai, M. Mori, M. Yamamoto, Y. Honda, T. Miyajima, T. Uchiyama

Center for Advanced Microscopy and Spectroscopy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

We have developed a DC photoemission gun at the compact ERL (cERL) at KEK for future energy recovery linac light sources and high repetition rate X-ray FELs. The cERL gun has stably provided beam for ERL commissioning and laser Compton scattering experiments since April 2013. The operational voltage has however been limited to 390 kV due to failures of two segments out of the full ten segmented ceramics. In order to recover 500 kV operation, we installed an additional two segmented ceramics on the existing ceramics during summer shutdown in 2015. We performed high voltage conditioning up to 548 kV and holding test at 500 kV for more than four hours. With the upgraded gun we demonstrated high current operation up to 1 mA at 390 kV as well as high voltage operation at 450 kV at the cERL.

Original language	English
Title of host publication	IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference
Publisher	Joint Accelerator Conferences Website (JACoW)
Pages	3944-3946
Number of pages	3
ISBN (Electronic)	9783954501472
Publication status	Published - 2016 Jan 1
Event	7th International Particle Accelerator Conference, IPAC 2016 - Busan, Korea, Republic of Duration: 2016 May 8 → 2016 May 13

Publication series

Name	IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference

Other

Other	7th International Particle Accelerator Conference, IPAC 2016
Country	Korea, Republic of
City	Busan
Period	16/5/8 → 16/5/13

ASJC Scopus subject areas

Nuclear and High Energy Physics
Atomic and Molecular Physics, and Optics

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Cite this

Nishimori, N., Hajima, R., Nagai, R., Mori, M., Yamamoto, M., Honda, Y., Miyajima, T., & Uchiyama, T. (2016). DC photoemission gun upgrade at the compact ERL. In IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference (pp. 3944-3946). (IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference). Joint Accelerator Conferences Website (JACoW).

DC photoemission gun upgrade at the compact ERL. / Nishimori, N.; Hajima, R.; Nagai, R.; Mori, M.; Yamamoto, M.; Honda, Y.; Miyajima, T.; Uchiyama, T.

IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference. Joint Accelerator Conferences Website (JACoW), 2016. p. 3944-3946 (IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nishimori, N, Hajima, R, Nagai, R, Mori, M, Yamamoto, M, Honda, Y, Miyajima, T & Uchiyama, T 2016, DC photoemission gun upgrade at the compact ERL. in IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference. IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference, Joint Accelerator Conferences Website (JACoW), pp. 3944-3946, 7th International Particle Accelerator Conference, IPAC 2016, Busan, Korea, Republic of, 16/5/8.

Nishimori, N. ; Hajima, R. ; Nagai, R. ; Mori, M. ; Yamamoto, M. ; Honda, Y. ; Miyajima, T. ; Uchiyama, T. / DC photoemission gun upgrade at the compact ERL. IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference. Joint Accelerator Conferences Website (JACoW), 2016. pp. 3944-3946 (IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference).

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abstract = "We have developed a DC photoemission gun at the compact ERL (cERL) at KEK for future energy recovery linac light sources and high repetition rate X-ray FELs. The cERL gun has stably provided beam for ERL commissioning and laser Compton scattering experiments since April 2013. The operational voltage has however been limited to 390 kV due to failures of two segments out of the full ten segmented ceramics. In order to recover 500 kV operation, we installed an additional two segmented ceramics on the existing ceramics during summer shutdown in 2015. We performed high voltage conditioning up to 548 kV and holding test at 500 kV for more than four hours. With the upgraded gun we demonstrated high current operation up to 1 mA at 390 kV as well as high voltage operation at 450 kV at the cERL.",

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AU - Honda, Y.

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AB - We have developed a DC photoemission gun at the compact ERL (cERL) at KEK for future energy recovery linac light sources and high repetition rate X-ray FELs. The cERL gun has stably provided beam for ERL commissioning and laser Compton scattering experiments since April 2013. The operational voltage has however been limited to 390 kV due to failures of two segments out of the full ten segmented ceramics. In order to recover 500 kV operation, we installed an additional two segmented ceramics on the existing ceramics during summer shutdown in 2015. We performed high voltage conditioning up to 548 kV and holding test at 500 kV for more than four hours. With the upgraded gun we demonstrated high current operation up to 1 mA at 390 kV as well as high voltage operation at 450 kV at the cERL.

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