Characterization of fragmented heavy-ion beams using a three-stage telescope detector: measurements of 670-MeV/amu 20Ne beams.

Abstract:

:Measurements of a 670-MeV/amu 20Ne beam at the Lawrence Berkeley Laboratory Bevalac heavy-ion accelerator with various thicknesses of water absorber were obtained with the BERKLET. The BERKLET, a simple three-stage solid-state telescope detector, has been described previously. This instrument measures the linear energy transfer (LET) and residual energy of particles, allows the identification of the particle's charge, and provides a means of obtaining LET and energy statistics for the beam, separated by particle charge. The track and dose averaged LET dependence on the amount of water absorber was determined for each species of fragment in the beam. Large numbers of low-LET particles in the fragmented beam were detected. The results of the analysis are presented followed by a discussion of the effects of multiple scattering and secondary fragmentation on the measurements. A brief discussion of the implications of the BERKLET measurements for radiobiology is also presented.

journal_name

Med Phys

journal_title

Medical physics

authors

Llacer J,Schmidt JB,Tobias CA

doi

10.1118/1.596536

subject

Has Abstract

pub_date

1990-03-01 00:00:00

pages

151-7

issue

2

eissn

0094-2405

issn

2473-4209

journal_volume

17

pub_type

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