Pulsed power requirements for the Sandia recirculating electron beam linac
Compact, high gradient, linear induction accelerators may be achieved by recirculating 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 2.5-MV, 20-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 extension of this technology to multiple-pulse machines will require advances in liquid dielectric breakdown strength and switch surface flashover, as well as additional improvements in lower inductance switching and vacuum-liquid interface flashover. This paper will discuss the recirculation concept, pulsed-power design parameters, machine scaling relationships that are valid for state-of-the-art and near-term pulsed-power parameters, and summarize the pulsed-power and beam transport experiments.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6421346
- Report Number(s):
- SAND-87-0110C; CONF-870656-10; ON: DE87011314
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
430300 -- Particle Accelerators-- Auxiliaries & Components
ACCELERATORS
BEAM TRANSPORT
CURRENTS
DESIGN
DIELECTRIC PROPERTIES
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATORS
ELECTRICAL PROPERTIES
ELECTRONIC EQUIPMENT
EQUIPMENT
FLASHOVER
FUNCTION GENERATORS
HIGH-VOLTAGE PULSE GENERATORS
LINEAR ACCELERATORS
PHYSICAL PROPERTIES
PULSE GENERATORS
SWITCHES
VACUUM SYSTEMS