TY - JOUR
T1 - Development of longitudinal feedback system for a storage ring free electron laser
AU - Koda, S.
AU - Hosaka, M.
AU - Yamazaki, J.
AU - Katoh, M.
AU - Hama, H.
N1 - Funding Information:
Authors are grateful to staff of the UVSOR facility for their technical help. This work is supported by a Grant-in-Aid for Scientific Research from Ministry of Education, Science and Culture of Japan Contract No. 10450039.
PY - 2001/11/21
Y1 - 2001/11/21
N2 - A longitudinal feedback system for a storage ring free electron laser (SRFEL) has been developed at the UVSOR. Instantaneous temporal deviation of the FEL optical pulse with respect to the electron bunch is measured in the frequency domain by detecting a phase between higher harmonic components of respective revolution frequencies. The phase deviation is fed back to control the storage ring RF frequency so as to readjust the effective length of the optical cavity. Compensating for the temporal drift with the feedback system, synchronism between the FEL micropulse and the electron bunches was successfully maintained for a reasonably long time.
AB - A longitudinal feedback system for a storage ring free electron laser (SRFEL) has been developed at the UVSOR. Instantaneous temporal deviation of the FEL optical pulse with respect to the electron bunch is measured in the frequency domain by detecting a phase between higher harmonic components of respective revolution frequencies. The phase deviation is fed back to control the storage ring RF frequency so as to readjust the effective length of the optical cavity. Compensating for the temporal drift with the feedback system, synchronism between the FEL micropulse and the electron bunches was successfully maintained for a reasonably long time.
KW - Longitudinal feedback
KW - Phase detection
KW - Storage ring free electron laser
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U2 - 10.1016/S0168-9002(01)01574-1
DO - 10.1016/S0168-9002(01)01574-1
M3 - Conference article
AN - SCOPUS:0035930297
SN - 0168-9002
VL - 475
SP - 211
EP - 216
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 1-3
T2 - 22nd International Free Electron Laser Conference (FEL 2000)
Y2 - 13 August 2000 through 18 August 2000
ER -