He+ afterpulses in photomultipliers: Their effect on atomic and molecular lifetime determinations
- 1 August 1974
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 45 (8), 1001-1003
- https://doi.org/10.1063/1.1686788
Abstract
Determination of atomic and molecular lifetimes by delayed coincidence photon counting with photomultipliers two or more years old may lead to erroneous results caused by afterpulses and even direct photodecay in perfused helium. Spurious lifetimes as low as 15 nsec for the B 2 Σ u + (v′=0) state of N 2 + and the C3Πg(v′ = 0) state of N2 have been observed.Keywords
This publication has 8 references indexed in Scilit:
- The origins of afterpulses in photomultipliersJournal of Physics D: Applied Physics, 1973
- Photomultiplier noise statisticsJournal of Physics D: Applied Physics, 1972
- Noise sources in the C31000D photomultiplierJournal of Physics E: Scientific Instruments, 1971
- A Cold Cathode InvertronReview of Scientific Instruments, 1970
- Extraneous Light Emission from PhotomultipliersIEEE Transactions on Nuclear Science, 1967
- Afterpulses in PhotomultipliersIEEE Transactions on Nuclear Science, 1967
- Permeation of Gases through SolidsJournal of Applied Physics, 1957
- The Duration of Radiation Excited in Hydrogen by 10.2 Volt Electron ImpactsPhysical Review B, 1926