Accession Number:

ADA634695

Title:

A Simple Self-Breaking 2 MV Gas Switch

Descriptive Note:

Conference paper

Corporate Author:

LAWRENCE LIVERMORE NATIONAL LAB CA

Report Date:

1987-06-01

Pagination or Media Count:

5.0

Abstract:

We describe a simple self-breaking 2 MV gas master switch for the LLNL 2 MV general purpose relativistic electron beam REB accelerator. The switch cavity has been hollowed out in a 17.8 em-thick acrylic slab. The switch gap is 3.55 cm. At 2 MV the maximum field at the cathode is 740 kV cm-1 and the maximum envelope field is 172 kV cm-1, The maximum measured switching voltage is 1.90 -0.1 MV 10 bar abs. The minimum switching voltage is 1.1 MV 4.3 bar abs. The operating characteristics break away from the 89 kVcm atm DC breakdown strength of SF6 at 5.5 bar abs. Careful electrical and mechanical design as well as strict quality control during assembly and operation have resulted in reliable and reproducible operation.

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE