Study on energy compensation by rf amplitude modulation for high intense electron beam generated by a photocathode rf-gun

Y. Yokoyama, T. Aoki, K. Sakaue, T. Suzuki, T. Yamamoto, M. Washio, J. Urakawa, N. Terunuma, H. Hayano, S. Kashiwagi, R. Kuroda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

At Waseda University, we have been studying a high quality electron beam generation and its application experiments with a Cs-Te photocathode RF-Gun. To generate more intense and stable electron beam, we have been developing the cathode irradiating UV laser which consists of optical fiber amplifier and LD pumped amplifier. As the result, more than 100 multi-bunch electron beam with 1nC each bunch charge was obtained. However, it has to be considered that the accelerating voltage will decrease because of the beam loading effect. So we have studied the RF amplitude modulation technique to compensate the beam energy difference. The energy difference will caused by transient accelerating voltage in RF-Gun cavity and beam loading effect. As the result of this compensation method, the energy difference has been compensated to 1%p-p, while 5%p-p without compensation.

Original languageEnglish
Title of host publicationIPAC 2011 - 2nd International Particle Accelerator Conference
Pages1132-1134
Number of pages3
Publication statusPublished - 2011 Dec 1
Event2nd International Particle Accelerator Conference, IPAC 2011 - Kursaal, San Sebastian, Spain
Duration: 2011 Sep 42011 Sep 9

Publication series

NameIPAC 2011 - 2nd International Particle Accelerator Conference

Conference

Conference2nd International Particle Accelerator Conference, IPAC 2011
CountrySpain
CityKursaal, San Sebastian
Period11/9/411/9/9

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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  • Cite this

    Yokoyama, Y., Aoki, T., Sakaue, K., Suzuki, T., Yamamoto, T., Washio, M., Urakawa, J., Terunuma, N., Hayano, H., Kashiwagi, S., & Kuroda, R. (2011). Study on energy compensation by rf amplitude modulation for high intense electron beam generated by a photocathode rf-gun. In IPAC 2011 - 2nd International Particle Accelerator Conference (pp. 1132-1134). (IPAC 2011 - 2nd International Particle Accelerator Conference).