Design and characterization of a directly polarized radioluminescent light source

The properties of several directly polarized radioluminescent light (RL) sources are described. The RL sources are composed of a [small beta]-particle-emitting (90)Sr radioisotope coupled to polarization-oriented light-emitting plastic scintillators. The polarization of the scintillator molecules wa...

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Bibliographic Details
Published in:Analyst (London) 2004-01, Vol.129 (8), p.779-782
Main Authors: BARNES, James H, HIEFTJE, Gary M
Format: Article
Language:English
Subjects:
Analytical chemistry
Beta Particles
Chemistry
Equipment Design
Exact sciences and technology
Light
Scintillation Counting
Strontium Radioisotopes
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Summary:The properties of several directly polarized radioluminescent light (RL) sources are described. The RL sources are composed of a [small beta]-particle-emitting (90)Sr radioisotope coupled to polarization-oriented light-emitting plastic scintillators. The polarization of the scintillator molecules was achieved through a mechanical stress applied to the polymer matrix. The emission stability of the RL sources is described. It was found that the degree of polarization of light emitted by the sources varied from zero to 26%, depending on the matrix and scintillating material. The RL source with the highest degree of polarization was constructed from polystyrene and anthracene.
ISSN:0003-2654
1364-5528
DOI:10.1039/b314563h