Recirculating electron beam linac
One method to achieve a high gradient, linear induction accelerator is to recirculate the electron beam in phase with a repeating accelerating voltage. A two-cavity recirculating accelerator has been designed and operated in a single-pass mode. The prototype accelerator uses a 2.0-MV, 10-kA, 25-ns duration injector and an accelerating cavity that will produce a total accelerating voltage of 5.3 MV for four passes. The design of this machine involved key areas of development in pulsed power, specifically, low-jitter spark gaps and vacuum-liquid interfaces for bipolar electric fields. The recirculation technique under investigation employs an ion focus regime (IFR) electrostatic channel created by a magnetically guided, 300-V, 800-mA electron beam in low pressure (0.10 mTorr) Argon gas. This paper will discuss the recirculation concept, machine design parameters and scaling relationships, and summarize the pulsed power issues.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6661992
- Report Number(s):
- SAND-86-2148C; CONF-870302-9; ON: DE87006699
- Country of Publication:
- United States
- Language:
- English
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LINEAR ACCELERATORS
MARX GENERATORS
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RACETRACK MICROTRONS