Pulsed-source time-resolved phosphorimetry: comparison of a commercial gated photomultiplier with a specially wired ungated photomultiplier
Abstract
A common problem encountered in recording delayed light emission is that the signal of interest is preceded by a much more intense signal arising from prompt fluorescence. When a photomultiplier tube (PMT) is used as the photosensor in a pulsed-source phosphorimeter, two options are open to an experimenter who finds mechanical shutters inconvenient or impracticable and