Energy-resolved imaging of the PBFA-II ion beam

Author

Stygar, William A. ; Mix, L.P. ; Leeper, R.J. ; Mehlhorn, Thomas A. ; Maenchen ; Brock ; Hebron, D.E. ; Johnson, D.J. ; Lockner, T.R. ; Nelson ; Reyes, P.

Author_Institution

Sandia Nat. Lab., Albuquerque, NM, USA

fYear

1989

fDate

0-0 1989

Firstpage

109

Abstract

Summary Form only given, as follows. A multiframe ion pinhole camera has been developed to record energy-density profiles of the PBFA-II (Particle Beam Fusion Accelerator II) ion beam as a function of ion energy. Because the average energy of the beam ions is typically a monotically decreasing function of time, the energy-resolved images are snapshots of the beam at different times during the PBFA-II power pulse. Beam ions that scatter from a thin gold foil are imaged onto six separate areas of a sheet of CR-39. Each of the areas is covered by a range filter and records an image with a different lower bound on the ion energy. Subtracting images with adjacent cutoff energies results in images with upper and lower bounds on the ion energy. For proton beams, energy resolution is also obtained with track diameter measurements, Monte Carlo simulations have been performed to characterize the sensitivity and geometric distortion of the camera.<>

Keywords

Monte Carlo methods; cameras; ion accelerators; ion beams; particle beam diagnostics; photographic applications; Au foil; CR-39; Monte Carlo simulations; PBFA-II; energy resolution; energy resolved imaging; geometric distortion; ion beam; ion energy; multiframe ion pinhole camera; proton beams; sensitivity; track diameter measurements; Cameras; Ion accelerators; Ion beams; Monte Carlo methods; Particle beam measurements; Photography;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 1989. IEEE Conference Record - Abstracts., 1989 IEEE International Conference on

Conference_Location

Buffalo, NY, USA

Type

conf

DOI

10.1109/PLASMA.1989.166152

Filename

166152