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Comparison of Gamma-Radiation Induced Attenuation in Al-Doped, P-Doped and Ge-Doped Fibres for Dosimetry.
- Source :
- IEEE Transactions on Nuclear Science; Jul2013 Part 1, Vol. 60 Issue 4, p2511-2517, 7p
- Publication Year :
- 2013
-
Abstract
- We have investigated radiation induced absorption in Al-doped, P-doped and Ge-doped optical fibres under ^60Co source gamma-radiation up to a total dose of 71 kGy at two temperatures 30 and 80^\circC. The Al-doped and P-doped fibres demonstrated high radiation sensitivity required for the optical fibre dosimetry. The RIA response to temperature increase from 30 to 80^\circC depended on the dopant. In Al-doped fibres the absorption level decreased by 25% whereas in P-doped fibres it increased by at least 10%. For comparison we also tested standard telecom-grade Ge-doped fibres. Such fibres demonstrated a monotonous rise of the RIA during the whole irradiation with a small decrease of sensitivity at the higher temperature. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189499
- Volume :
- 60
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Nuclear Science
- Publication Type :
- Academic Journal
- Accession number :
- 89803236
- Full Text :
- https://doi.org/10.1109/TNS.2013.2273273