Conception of an ionising radiation detection scheme based on controlled light induced annealing of silica fibres

Author

Vassilopoulos, C. ; Kourtis, A. ; Mantakas, C.

Author_Institution

Inst. of Inf. & Telecommun., Nat. Centre for Sci. Res. ´´DEMOKRITOS´´, Athens, Greece

Volume

140

Issue

4

fYear

1993

fDate

8/1/1993 12:00:00 AM

Firstpage

267

Lastpage

272

Abstract

The current work proposes the use of optical fibres as sensing elements for dose rate measurement of ionising radiation based on controlled light induced annealing or photobleaching. It shows that, under steady-state irradiation, the propagation characteristics of the fibre can be modulated by variations in the intensity of the photobleaching signal. Since the effected modulation was found to depend both on the intensity of the incident radiation and on the optical power density variation of the annealing signal, a suitable scheme can be devised to measure the dose rate of the incident radiation in an all-fibre ionising radiation detector

Keywords

fibre optic sensors; optical saturable absorption; particle detectors; radiation detection and measurement; all-fibre ionising radiation detector; controlled light induced annealing; dose rate measurement; fibre optic sensors; incident radiation; ionising radiation detection scheme; optical fibres; optical power density variation; photobleaching; propagation characteristics; radiation intensity; sensing elements; silica fibres; steady-state irradiation;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings J

Publisher

iet

ISSN

0267-3932

Type

jour

Filename

236307