A simple apparatus for quick qualitative analysis of CR39 nuclear track detectors

Quantifying the ion pits in Columbia Resin 39 (CR39) nuclear track detector from Thomson parabolas is a time consuming and tedious process using conventional microscope based techniques. A simple inventive apparatus for fast screening and qualitative analysis of CR39 detectors has been developed, en...

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Bibliographic Details
Published in:Review of scientific instruments 2008-10, Vol.79 (10), p.10E536-10E536
Main Authors: Gautier, D C, Kline, J L, Flippo, K A, Gaillard, S A, Letzring, S A, Hegelich, B M
Format: Article
Language:English
Subjects:
Argon - chemistry
CAMERAS
Carbon - chemistry
CHARGE STATES
Equipment Design
HELIUM-NEON LASERS
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
IONS
Lasers
Light
Nitrogen - chemistry
OPTICAL MICROSCOPY
Oxygen - chemistry
PARABOLAS
PARTICLE TRACKS
PLASTICS
Protons
RESOLUTION
Scattering, Radiation
SPECTROSCOPY
Temperature
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Summary:Quantifying the ion pits in Columbia Resin 39 (CR39) nuclear track detector from Thomson parabolas is a time consuming and tedious process using conventional microscope based techniques. A simple inventive apparatus for fast screening and qualitative analysis of CR39 detectors has been developed, enabling efficient selection of data for a more detailed analysis. The system consists simply of a green He-Ne laser and a high-resolution digital single-lens reflex camera. The laser illuminates the edge of the CR39 at grazing incidence and couples into the plastic, acting as a light pipe. Subsequently, the laser illuminates all ion tracks on the surface. A high-resolution digital camera is used to photograph the scattered light from the ion tracks, enabling one to quickly determine charge states and energies measured by the Thomson parabola.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.2965000