TY - GEN
T1 - Beam-loading compensation of a multi-bunch electron beam by using RF amplitude modulation in laser undulator compact X-ray source(LUCX)*
AU - Fukuda, M.
AU - Araki, S.
AU - Honda, Y.
AU - Terunuma, N.
AU - Urakawa, J.
AU - Sakaue, K.
AU - Washio, M.
N1 - Funding Information:
This work was supported by Photon and Quantum Basic Research Coordinated Development Program from the Ministry of Education, Culture, Sports, Science and Technology, Japan.
Publisher Copyright:
Copyright © 2017 CC-BY-3.0 and by the respective authors.
PY - 2016
Y1 - 2016
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85086300860&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85086300860&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85086300860
T3 - Proceedings of the 28th Linear Accelerator Conference, LINAC 2016
SP - 867
EP - 869
BT - Proceedings of the 28th Linear Accelerator Conference, LINAC 2016
PB - JACoW Publishing
T2 - 28th International Linear Accelerator Conference, LINAC 2016
Y2 - 25 September 2016 through 30 September 2016
ER -