Evidence of delayed light emission of tetraphenyl-butadiene excited by liquid-argon scintillation light
Evidence of delayed light emission of tetraphenyl-butadiene excited by liquid-argon scintillation light
Tetraphenyl-butadiene is the wavelength shifter most widely used in combination with liquid argon. The latter emits scintillation photons with a wavelength of 127 nm that need to be downshifted to be detected by photomultipliers with glass or quartz windows. Tetraphenyl-butadiene has been demonstrated to have an extremely high conversion efficiency, …