Photopeak Efficiency of a Well-Type Scintillation Detector
- 1 April 1968
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 39 (4) , 529-531
- https://doi.org/10.1063/1.1683424
Abstract
The detection and photopeak efficiences of a NaI cylindrical crystal, 7.62 cm diam and 7.62 cm high, containing a 0.63 cm diam well, 4.13 cm deep, were experimentally determined for 0.51 MeV gamma radiation from 11C positron annihilation. The pulse-height distribution measured with the source on top of the crystal was used with probability theory to obtain an approximate synthetic summed spectrum for the source in the well. This in turn was used to analyze the observed pulse-height distribution for the source in the well. The detection and photopeak efficiencies are 0.70±0.02 and 0.49±0.01, respectively, from which the photofraction is 0.70±0.03. Agreement with calculated values is good.Keywords
This publication has 7 references indexed in Scilit:
- Method for Determining the Photopeak Efficiency of Scintillation CountersReview of Scientific Instruments, 1961
- Absorption of Gamma Radiation in NaI Well CrystalsReview of Scientific Instruments, 1960
- The level scheme of 134Ba some features of the NaI summing spectrometerNuclear Physics, 1959
- Eine einfache Methode zur Bestimmung der Ansprechwahrscheinlichkeit eines NaJ-LochkristallsThe European Physical Journal A, 1959
- NaI Summing SpectrometerReview of Scientific Instruments, 1957
- Studies with the scintillation spectrometerNuclear Physics, 1956
- Studies with the scintillation spectrometerNuclear Physics, 1956