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Title: GAMMA-RAY RESOLUTION OF LARGER NaI(Tl) SCINTILLATORS

Abstract

The various factors affecting the gamma-ray energy resolution of NaI(Tl) scintillation spectrometers have been investigated experimentally with commercially packaged 2.5- and 5-in. diam scintillators and routinely available 3- and 5-in. photomultipliers. The resolution contains contributions from the scintillator light yield, photocathode efficiency, intrinsic resolution due to the material NaI(Tl) and two terms involving the effects of various spatial inhomogeneities in the packaged scintillator and photomultiplier. Insofar as possible these contributions are experimentally separated. The poorer resolution of the 5-in. systems is in about equal measure caused by their smaller light yield, their larger spatial inhomogeneities and the lower efficiency of the 5-in. photomultipliers in producing and collecting cathode electrons. (auth)

Authors:
;
Publication Date:
Research Org.:
Yale Univ., New Haven
Sponsoring Org.:
USDOE
OSTI Identifier:
4280160
NSA Number:
NSA-13-002159
Resource Type:
Journal Article
Journal Name:
Rev. Sci. Instr.
Additional Journal Information:
Journal Volume: Vol: 29; Other Information: Orig. Receipt Date: 31-DEC-59
Country of Publication:
Country unknown/Code not available
Language:
English
Subject:
INSTRUMENTS; CATHODES; CRYSTALS; DEFECTS; DISTRIBUTION; EFFICIENCY; ELECTRONS; GAMMA DETECTION; GAMMA SPECTROMETERS; LIGHT; MEASURED VALUES; OPERATION; PHOSPHORS; PHOTOELECTRIC EFFECT; PHOTOMULTIPLIERS; RESOLUTION; SCINTILLATION COUNTERS; SCINTILLATIONS; SODIUM IODIDES; THALLIUM; TRACE AMOUNTS; VOLUME

Citation Formats

Hickok, R L, and Draper, J E. GAMMA-RAY RESOLUTION OF LARGER NaI(Tl) SCINTILLATORS. Country unknown/Code not available: N. p., 1958. Web. doi:10.1063/1.1716078.
Hickok, R L, & Draper, J E. GAMMA-RAY RESOLUTION OF LARGER NaI(Tl) SCINTILLATORS. Country unknown/Code not available. https://doi.org/10.1063/1.1716078
Hickok, R L, and Draper, J E. Sat . "GAMMA-RAY RESOLUTION OF LARGER NaI(Tl) SCINTILLATORS". Country unknown/Code not available. https://doi.org/10.1063/1.1716078.
@article{osti_4280160,
title = {GAMMA-RAY RESOLUTION OF LARGER NaI(Tl) SCINTILLATORS},
author = {Hickok, R L and Draper, J E},
abstractNote = {The various factors affecting the gamma-ray energy resolution of NaI(Tl) scintillation spectrometers have been investigated experimentally with commercially packaged 2.5- and 5-in. diam scintillators and routinely available 3- and 5-in. photomultipliers. The resolution contains contributions from the scintillator light yield, photocathode efficiency, intrinsic resolution due to the material NaI(Tl) and two terms involving the effects of various spatial inhomogeneities in the packaged scintillator and photomultiplier. Insofar as possible these contributions are experimentally separated. The poorer resolution of the 5-in. systems is in about equal measure caused by their smaller light yield, their larger spatial inhomogeneities and the lower efficiency of the 5-in. photomultipliers in producing and collecting cathode electrons. (auth)},
doi = {10.1063/1.1716078},
url = {https://www.osti.gov/biblio/4280160}, journal = {Rev. Sci. Instr.},
number = ,
volume = Vol: 29,
place = {Country unknown/Code not available},
year = {1958},
month = {11}
}