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An optical fibre rereadable radiation dosimeter for use at high doses and at elevated temperature

Ellis, A.D., Moskowitz, P.D., Townsend, J.E. and Townsend, P.D. (1989) An optical fibre rereadable radiation dosimeter for use at high doses and at elevated temperature Journal of Physics D: Applied Physics, 22, pp. 1758-1762. (doi:10.1088/0022-3727/22/11/030).

Record type: Article

Abstract

A new type of radiation dosimeter for large radiation doses is described, which is based on silica fibre material. Conventional radioluminescence or thermoluminescence of silica produces emission in the blue region of the spectrum. However, in this new material irradiation, in conjunction with a heat treatment, generates a green emission band. The intensity of the green band can be monitored by either radioluminescence or thermoluminescence using a test dose. The signals are directly related to the total irradiation history of the material. The dosimeter is therefore rereadable. The production mechanism of the green emission centre requires a thermal processing stage, with an activation energy of 0.52 eV. Further, the dosimeter is effective at recording radiation during high-temperature exposure, to at least 400°C, with the subsequent dosimetry being performed below 200°C.

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Published date: 1989

Identifiers

Local EPrints ID: 78436
URI: http://eprints.soton.ac.uk/id/eprint/78436
ISSN: 0022-3727
PURE UUID: 3555ae8a-45b2-4774-83b2-c0f7cf165702

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:24

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Contributors

Author: A.D. Ellis
Author: P.D. Moskowitz
Author: J.E. Townsend
Author: P.D. Townsend

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