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Scintillation properties of lead sulfate [electronic resource].

Published
Washington, D.C. : United States. Dept. of Health and Human Services, 1991.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
6 pages : digital, PDF file
Additional Creators
Lawrence Berkeley National Laboratory, United States. Department of Health and Human Services, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
We report on the scintillation properties of lead sulfate (PbSO₄), a scintillator that show promise as a high energy photon detector. It physical properties are well suited for gamma detection, as its has a density of 6.4 gm/cm³, a 1/e attenuation length for 511 keV photons of 1.2 cm, is not affected by air or moisture, and is cut and polished easily. In 99.998% pure PbSO₄ crystals at room temperature excited by 511 keV annihilation photons, the fluorescence decay lifetime contains significant fast components having 1.8 ns (5%) and 19 ns (36%) decay times, but with longer components having 95 ns (36%) and 425 ns (23%) decays times. The peak emission wavelength is 335 nm, which is transmitted by borosilicate glass windowed photomultiplier tubes. The total scintillation light output increases with decreasing temperature fro 3,200 photons/MeV at +45°C to 4, 900 photons/MeV at room temperature (+25°C) and 68,500 photons/MeV at −145°C. In an imperfect, 3 mm cube of a naturally occurring mineral form of PbSO₄ (anglesite) at room temperature, a 511 keV photopeak is seen with a total light output of 60% that BGO. There are significant sample to sample variations of the light output among anglesite samples, so the light output of lead sulfate may improve when large synthetic crystals become available. 10 refs.
Report Numbers
E 1.99:lbl--31456
E 1.99: conf-911106--89
conf-911106--89
lbl--31456
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
11/01/1991.
"lbl--31456"
" conf-911106--89"
"DE92010301"
": Grant P01-HL25840"
"Grant R01-CA48002"
1991 Institute of Electrical and Electronic Engineers (IEEE) nuclear science symposium and medical imaging conference,Santa Fe, NM (United States),2-9 Nov 1991.
Moses, W.W.; Derenzo, S.E.; Shlichta, P.J.
Funding Information
AC03-76SF00098
View MARC record | catkey: 14400610