Femtosecond, High-Brightness Electron Beam Generation and Advanced Diagnosis

Anderson, S G ; Brown, W J ; Tremaine, A M ; Kuba, J ; Hartemann, F V ; Fittinghoff, D N

Lawrence Livermore National Laboratory

关键词: Acceleration;    73 Nuclear Physics And Radiation Physics;    X-Ray Sources;    Brightness;    43 Particle Accelerators;   

DOI  :  10.2172/15014623
RP-ID  :  UCRL-TR-209420
RP-ID  :  W-7405-ENG-48
RP-ID  :  15014623

美国|英语

来源: UNT Digital Library

【 摘 要 】

This document serves as the final report for LDRD project number 04-LW-031, in which we created subpicosecond length, kilo-amp peak current electron beams with the 100 MeV electron/positron linac, using a novel technique designed to produce ultra-short bunch lengths while maintaining the high brightness produced by the S-band photoinjector. In addition, a diagnostic to measure the temporal distribution of the beam was investigated, as conventional pulse length measurement techniques do not apply to extremely short pulses. The creation and diagnosis of beams with both femtosecond length and high transverse brightness is of major concern to next generation acceleration and radiation production experiments. This work leveraged the previous investment in the PLEIADES facility and it's ability to produce high brightness electron beams. In addition, the ultra-short electron pulses generated by this work have been used in conjunction with the PLEIADES X-ray source to produce sub-picosecond, high-brightness X-ray pulses.