Characterization of scintillators for lost alpha diagnostics on burning plasma experiments
- National Institute for Fusion Science, Toki, Gifu 509-5292 (Japan)
The characteristics of light output by ion beam irradiations under high ion fluxes have been measured for three kinds of scintillators: ZnS:Ag deposited on the glass plate, Y{sub 3}Al{sub 5}O{sub 12}:Ce powder stiffened with a binder, and Y{sub 3}Al{sub 5}O{sub 12}:Ce ceramics sintered at high temperature. The ion beam flux in the range from 10{sup 12} to 10{sup 13} ions/(cm{sup 2} s) is irradiated to simulate the burning plasma experiments. The decrease of light output has been observed by long time ion irradiation. The deterioration of ZnS:Ag deposited scintillator is most serious. The deterioration has been improved for the scintillators of Y{sub 3}Al{sub 5}O{sub 12}:Ce with a binder and that sintered. Their applications to ITER lost alpha diagnostics are discussed.
- OSTI ID:
- 20861256
- Journal Information:
- Review of Scientific Instruments, Vol. 77, Issue 10; Other Information: DOI: 10.1063/1.2228743; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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