@article {piton1990an,
	title = {An "On"-Gated Photomultiplier Circuit for the Determination of Phosphorescence Lifetimes},
	journal = {Rev. Sci. Instr.},
	volume = {61},
	year = {1990},
	pages = {3726{\textendash}3728},
	author = {M. C. Piton and W. Panning and M. A. Winnik*}
}
