TY - GEN
T1 - Study on energy compensation by rf amplitude modulation for high intense electron beam generated by a photocathode rf-gun
AU - Yokoyama, Y.
AU - Aoki, T.
AU - Sakaue, K.
AU - Suzuki, T.
AU - Yamamoto, T.
AU - Washio, M.
AU - Urakawa, J.
AU - Terunuma, N.
AU - Hayano, H.
AU - Kashiwagi, S.
AU - Kuroda, R.
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:84885769021
SN - 9789290833666
T3 - IPAC 2011 - 2nd International Particle Accelerator Conference
SP - 1132
EP - 1134
BT - IPAC 2011 - 2nd International Particle Accelerator Conference
T2 - 2nd International Particle Accelerator Conference, IPAC 2011
Y2 - 4 September 2011 through 9 September 2011
ER -