A 10 ns multichannel photon counter
- 1 August 1976
- journal article
- Published by IOP Publishing in Journal of Physics E: Scientific Instruments
- Vol. 9 (8) , 686-690
- https://doi.org/10.1088/0022-3735/9/8/024
Abstract
A 512 channel photon counter with a resolution time of 10 ns per channel is described. The input of photon count data to the instrument is made via a derandomizer and shift register which are implemented in ECL circuitry. A 512 bit TTL buffer memory stores one cycle of data within the instrument and this information is read out to a small on-line computer at the end of each cycle. The computer, a PDP-12, accumulates and displays the data in a double precision word in memory giving a capacity of 16.8*106 counts per channel. Use of the instrument for the measurement of weak fluorescence with high time resolution is described.Keywords
This publication has 8 references indexed in Scilit:
- On the dual character of the fluorescence spectrum and lifetimes of acridine IIChemical Physics Letters, 1976
- Structural imperfections and singlet exciton traps in crystalline anthraceneChemical Physics Letters, 1976
- Study of Excitation Transfer in a Flowing Helium Afterglow Pumped with a Tuneable Dye Laser. I. Measurement of the Rate Coefficient for Selected Quenching Reactions Involving He (53P)The Journal of Chemical Physics, 1972
- Correction methods for photon pile-up in lifetime determination by single-photon countingJournal of Physics A: General Physics, 1970
- The Use of Photomultiplier Tubes for Photon CountingApplied Optics, 1969
- The correction for photon `pile-up' in the measurement of radiative lifetimesJournal of Physics E: Scientific Instruments, 1968
- A 1 ns risetime amplifier with direct couplingNuclear Instruments and Methods, 1965
- Measurement of Excited State Relaxation RatesApplied Optics, 1965