Beam-target interaction experiments for bremsstrahlung converter applications

Author

Sampayan, S. ; Buckles, R. ; Caporaso, G. ; Chen, Y.J. ; Crist, C. ; Falabella, S. ; Houck, T. ; Krogh, M. ; McCarrick, J. ; Richardson, R. ; Sanders, D. ; Weir, J. ; Westenskow, G.

Author_Institution

Lawrence Livermore Nat. Lab., CA, USA

Volume

2

fYear

1999

fDate

1999

Firstpage

1303

Abstract

For multi-pulse radiography facilities, we are investigating the possible adverse effects of (1) backstreaming ion emission from the bremsstrahlung converter target and (2) the interaction of the resultant plasma with the electron beam during subsequent pulses. These effects would primarily manifest themselves in a static focusing system as a rapidly varying X-ray spot. To study these effects, we are conducting beam-target interaction experiments on the ETA-II accelerator (a 6.0 MeV, 2.5 kA, 70 ns FWHM pulsed, electron accelerator) by measuring spot dynamics and characterizing the resultant plasma for various configurations

Keywords

X-ray production; bremsstrahlung; collective accelerators; electron accelerators; electron beam focusing; electron beams; linear accelerators; nuclear bombardment targets; particle beam diagnostics; particle beam dynamics; radiography; 2.5 kA; 6 MeV; ETA-II accelerator; backstreaming ion emission; beam-target interaction experiments; bremsstrahlung converter applications; electron accelerator; electron beam; linear induction accelerator; multipulse radiography; rapidly varying X-ray spot; spot dynamics measurement; static focusing system; Electron accelerators; Electron beams; Laboratories; Particle beams; Plasma accelerators; Plasma measurements; Plasma x-ray sources; Pulse measurements; Radiography; X-ray imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1999. Proceedings of the 1999

Conference_Location

New York, NY

Print_ISBN

0-7803-5573-3

Type

conf

DOI

10.1109/PAC.1999.795529

Filename

795529