Photodegradation mechanisms of tetraphenyl butadiene coatings for liquid argon detectors
نویسندگان
چکیده
منابع مشابه
Tetraphenyl Butadiene Emanation and Bulk Fluorescence from Wavelength Shifting Coatings in Liquid Argon
We study the stability of three types of popularly employed TPB coatings under immersion in liquid argon. TPB emanation from each coating is quantified by fluorescence assay of molecular seive filter material after a prolonged soak time. Two of the coatings are shown to emanate a detectable concentration of TPB into argon over a 24 hour period, which corresponds to tens of parts per billion in ...
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Tetraphenyl-butadiene is a useful alternative to sodium salicylate as a fluorescent wavelength converter for detectors in the vacuum uv. Measurements of the fluorescence efficiency of TPB relative to sodium salicylate over the wavelength range 735-3160 A are presented, and the application of TPB coatings to image tube detectors is discussed. Over the entire wavelength range studied TPB had a hi...
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ژورنال
عنوان ژورنال: Journal of Instrumentation
سال: 2013
ISSN: 1748-0221
DOI: 10.1088/1748-0221/8/01/p01013