A study of the effect of a 500 kGy(Si) radiation dose on the bandwidth of a radiation hard multi-mode fibre

The fibres used for the readout of the upgraded LHC detectors for the High Luminosity Large Hadron Collider (HL-LHC) will be exposed to very high radiation doses of up to similar to 500 kGy(Si). From DC measurements of the radiation induced absorption, several singlemode (SM) and multimode (MM) fibr...

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Bibliographic Details
Published in:Journal of instrumentation 2012-10, Vol.7 (10), p.1-11, Article P10021
Main Authors: Achten, F J, Kuyt, G, Huffman, B T, Issever, C, Melin, G, Molin, D, Teng, P K, Weidberg, A R
Format: Article
Language:English
Subjects:
Bandwidth
Direct current
Fibers
Fibre
Fibres
Instrumentation
Large Hadron Collider
Luminosity
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Summary:The fibres used for the readout of the upgraded LHC detectors for the High Luminosity Large Hadron Collider (HL-LHC) will be exposed to very high radiation doses of up to similar to 500 kGy(Si). From DC measurements of the radiation induced absorption, several singlemode (SM) and multimode (MM) fibres have been qualified. The effect of radiation damage on fibres is also expected to have an adverse impact on the fibre bandwidth. This paper explains the theoretical reasons for this and presents results of extensive tests to determine the significance of this effect for one of the previously qualified radiation-hard multi-mode fibres.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/7/10/P10021