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TECHNICAL NOTE
Author(s) -
Boens Noël,
Tamai Naoto,
Yamazaki Iwao,
Yamazaki Tomoko
Publication year - 1990
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1990.tb08702.x
Subject(s) - picosecond , microchannel plate detector , analytical chemistry (journal) , convolution (computer science) , wavelength , photomultiplier , chemistry , exponential decay , excitation , optics , materials science , physics , chromatography , laser , nuclear physics , quantum mechanics , machine learning , detector , artificial neural network , computer science
— –The use of a proximity type 12 µm microchannel plate photomultiplier (Hamamatsu R1564U) is demonstrated for the accurate determination of picosecond lifetimes of xanthione, stiff stilbene, cryptocyanine, pinacyanol chloride, erythrosin and l, l′‐diethyl‐2,2′‐dicarbocyanine iodide in solution at room temperature. Single curve and global analyses with reference convolution give statistically acceptable mono‐exponential fits to all obtained decays. The count rate and wavelength dependence of the measured excitation pulse profile are discussed. Matching the count rates of sample and reference is recommended for reliable picosecond lifetime determinations.