Electron-Beam Transport Studies for Radiographic Applications
Abstract
We have measured electron-beam-produced gas ionization in a paraxial-diode gas cell, using three different interferometric arrangements. We have also measured the beam net current at the channel wall. In the range of tens of kA/cm2 and 0.3-5 Torr, the electron density is in the 1017 cm-3 range, scaling strongly with beam current density and sub-linearly with pressure. The fractional net current ranges from 20-40%. We are developing a rate-equation ionization model whose results are consistent with these measurements.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2003
- Accession Number
- ADA636704
Entities
People
- Bruce V. Weber
- D. M. Ponce
- David D. Hinshelwood
- Deane F. Mosher
- Donald P. Murphy
- Joseph W. Schumer
- S. D. Strasburg
Organizations
- United States Naval Research Laboratory