1ms pulse beam generation and acceleration by photocathode radio frequency gun and superconducting accelerator

Masao Kuriki, Hokuto Iijima, Seiichi Hosoda, Ken Watanabe, Hitoshi Hayano, Junji Urakawa, Goro Isoyama, Ryukou Kato, Keigo Kawase, Ayaka Kuramoto, Shigeru Kashiwagi, Kazuyuki Sakaue

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5 Citations (Scopus)

Abstract

We report the successful generation and acceleration of a 1-ms-long pulse and multibunch electron beam by a normal conducting photocathode RF gun and a super conducting accelerator at the KEK Superconducting Test Facility (STF). A 1.3 GHz normal conducting RF gun generates a 1ms and 10mA macropulse that fully satisfies the designed parameters. This is the longest macropulse generated by a normal conducting RF gun with a frequency of more than 1 GHz. A beam acceleration of up to 40MeV was demonstrated with more than 60% of the designed average current. The accelerated beam properties were evaluated: the intensity and energy fluctuations were 3.8% and less than 0.08%, respectively. These beam properties are sufficient for the requirement of the STF operation including that in the quantum beam project, which is highbrightness- X-ray generation by inverse laser Compton scattering. The intensity fluctuation should be improved toward the International Linear Collider (ILC) for uniform acceleration.

Original languageEnglish
Article number056401
JournalJapanese journal of applied physics
Volume52
Issue number5 PART 1
DOIs
Publication statusPublished - 2013 May 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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    Kuriki, M., Iijima, H., Hosoda, S., Watanabe, K., Hayano, H., Urakawa, J., Isoyama, G., Kato, R., Kawase, K., Kuramoto, A., Kashiwagi, S., & Sakaue, K. (2013). 1ms pulse beam generation and acceleration by photocathode radio frequency gun and superconducting accelerator. Japanese journal of applied physics, 52(5 PART 1), [056401]. https://doi.org/10.7567/JJAP.52.056401