Title :
Measurement of bunch time-structure in KEK PF
Author :
Tobiyama, M. ; Kasuga, T. ; Takeo, T. ; Obina, T. ; Tamura, K. ; Katsura, T.
Author_Institution :
Fac. of Sci., Hiroshima Univ., Japan
Abstract :
The time-structure of the bunches in the KEK-PF storage ring under the single bunch condition was measured by means of a photon counting system installed in beamline 21. When the jitter in the electronic system is negligible, the response of the whole system is finally determined by a transit time spread (TTS) of a photomultiplier (PMT). The TTS of the PMT was measured with a picosecond pulse laser system, pulse width of which was about 7 ps in FWHM. A current dependence of the longitudinal bunch shape was observed with the improved system and was found the increase of the asymmetry with the increase of the current
Keywords :
electron accelerators; particle beam diagnostics; photon counting; storage rings; KEK-PF storage ring; bunch time-structure measurement; longitudinal bunch shape; photon counting system; picosecond pulse laser system; transit time spread; Energy measurement; Laboratories; Mirrors; Optical pulses; Photomultipliers; Photonics; Pulse amplifiers; Pulse measurements; Shape measurement; Storage rings;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.309338
