6 MV Vacuum Voltmeter Development
Abstract
A standard voltmeter designed for measuring up to 2 MV in vacuum was modified to operate at -4 to -6 MV, appropriate levels for measuring the convolute voltage during z-pinch experiments on Z. Field shaping structures are used to eliminate electron emission from the voltmeter grading rings. The voltmeter operated as expected during tests at -4 MV on the Mercury generator, indicating this voltmeter could work for the lower voltage range expected on Z. At -6 MV on Mercury, the voltmeter did not operate correctly, probably because of electron emission. Particle-in-cell modeling is consistent with the observed voltmeter response. An improved field shaper could extend the voltmeter operation to -6 MV.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2009
- Accession Number
- ADA630218
Entities
People
- Bruce V. Weber
- D. G. Phipps
- David D. Hinshelwood
- Raymond J. Allen
- Robert J. Commisso
- Stephen B. Swanekamp
Organizations
- United States Naval Research Laboratory