Beam-loading compensation of a multi-bunch electron beam by using RF amplitude modulation in laser undulator compact X-ray source(LUCX)*

M. Fukuda, S. Araki, Y. Honda, N. Terunuma, J. Urakawa, K. Sakaue, M. Washio

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

Abstract

We have been developing a compact X-ray source via laser Compton scattering(LCS) at Laser Undulator Compact X-ray source(LUCX) accelerator in KEK. In here, a multi-bunch electron beam is generated by a 3.6cell photo-cathode RF-gun and accelerated to 18-24MeV by a 12cell accelerating tube. And then 6-10 keV X-rays are generated by LCS between the beam and a laser pulse stored in a 4-mirror planar optical cavity. Presently, we have achieved the generation of 24MeV beam with total charge of 600nC in 1000bunches. The energy difference is within 1.3% peak to peak. The beam-loading is compensated by T method and amplitude modulation of the RF pulse. However, there is the energy difference at the RF-gun. It is assumed that this causes the reduction of the X-ray flux due to change of the focused beam size. To reduce the energy difference, RF amplitude modulation is also applied to the RF pulse for the gun. The results of this beam-loading compensation will be reported.

Original languageEnglish
Title of host publicationProceedings of the 28th Linear Accelerator Conference, LINAC 2016
PublisherJACoW Publishing
Pages867-869
Number of pages3
ISBN (Electronic)9783954501694
Publication statusPublished - 2016
Event28th International Linear Accelerator Conference, LINAC 2016 - East Lansing, United States
Duration: 2016 Sep 252016 Sep 30

Publication series

NameProceedings of the 28th Linear Accelerator Conference, LINAC 2016

Conference

Conference28th International Linear Accelerator Conference, LINAC 2016
CountryUnited States
CityEast Lansing
Period16/9/2516/9/30

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Fukuda, M., Araki, S., Honda, Y., Terunuma, N., Urakawa, J., Sakaue, K., & Washio, M. (2016). Beam-loading compensation of a multi-bunch electron beam by using RF amplitude modulation in laser undulator compact X-ray source(LUCX)*. In Proceedings of the 28th Linear Accelerator Conference, LINAC 2016 (pp. 867-869). (Proceedings of the 28th Linear Accelerator Conference, LINAC 2016). JACoW Publishing.