Design and initial operation of ETA-II induction accelerator: Beam Research Program
ETA-II is a high current, high-repetition-rate induction linac designed for use in free-electron laser (FEL) research. ETA-II design is to produce 7.5-MeV, 2-kA, 70-ns pulses at a brightness of 2 /times/ 10/sup 9/A/(m-rad)/sup 2/ with a repetition rate of up to 100 Hz continuous or 5 kHz in burst mode. The pulse power is generated by pulse compression using magnetic switching. The accelerator consists of a 1.5-MeV injector using an M-type dispenser cathode followed by 60 induction cells. Each cell adds 100 keV to the beam ETA-II will be used for brightness transport studies needed for the design of higher energy accelerators for visible-light FELs. ETA-II will also drive a microwave FEL at 140 GHz and 250 GHz for plasma heating experiments in a tokamak. This report will describe the design parameters and initial operation of ETA-II. 1 ref., 9 figs., 2 tabs.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6658996
- Report Number(s):
- UCRL-99201; CONF-881049-39; ON: DE89003172
- Country of Publication:
- United States
- Language:
- English
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Status of the ETA-II (Experimental Test Accelerator II) linear induction accelerator: High brightness results
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