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Scintillation of thin tetraphenyl butadiene films under alpha particle excitation
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Scintillation of thin tetraphenyl butadiene films under alpha particle excitation
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The alpha induced scintillation of the wavelength shifter 1,1,4,4-tetraphenyl-1,3-butadiene (TPB) was studied to improve the understanding of possible surface alpha backgrounds in the DEAP dark matter search experiment. We found that vacuum deposited thin TPB films emit 882 +/-210 photons per MeV under alpha particle excitation. The scintillation pulse shape consists of a double exponential decay with lifetimes of 11 +/-5 ns and 275 +/-10ns.
Forward citations
Cited by 1 Pith paper
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Production and installation of wavelength-shifting reflective light enhancers for the Short-Baseline Near Detector
Production and in-situ installation of the largest TPB wavelength-shifting reflective system deployed in any neutrino detector for the SBND experiment.
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