GENERATION OF HIGH-CURRENT (1KA) SUBPICOSECOND ELECTRON SINGLE-PULSE

An achromatic pulse compressor and a grid pulser system were designed for generation of a high-current single pulse in a subpicosecond time domain and were installed to the S-band (2856 MHz) linear accelerator of the University of Tokyo. 35 MeV electron pulses with the pulse widt h of 10 ps have been compressed by the achromatic magnetic pulse compr ession system. Generation of subpicosecond single-electron pulse with the charge of 1 nC has been succeeded. The shortest and average pulse widths in FWHM are 670 and 890 fs, respectively. The length of the pul se has been measured by a femtosecond streak camera with a time resolu tion of 200 fs. No satellite of the main pulse could be observed.