期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 83, 期 10, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4733544
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Image fiber bundles are employed in fusion experiments and other high radiation environments where they are used to transmit an image from an unprotected objective lens to a radiation shielded camera. Due to their exposure to neutron and gamma radiation the transmission of these expensive image fiber bundles can rapidly degrade, especially at the shorter visible wavelengths, and require costly replacement. A cost-effective, non-destructive heat treatment process in which entire fiber bundles are heated gradually in air to 150 degrees-200 degrees C and held for tens of hours has been shown to recover much of the transmission lost due to the radiation induced absorption. The restoration process can be repeated multiple times without a loss in effectiveness, although some physical degradation of inter-fiber alignment has been observed. The results and the apparatus used for the successful restoration of the transmission of multiple image fiber bundles across their entire wavelength band will be presented. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4733544]
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