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Author Chetham-Strode, A. ♦ Tarrant, J. R. ♦ Silva, R. J.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1955
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Modern physics ♦ Technology ♦ Medicine & health ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Silicon ♦ Detectors ♦ Alpha particles ♦ Spectroscopy ♦ Particle scattering ♦ Tail ♦ Pulse amplifiers ♦ Probability distribution ♦ Magnetosphere ♦ Epoxy resins
Abstract The sensitivity for detection of low abundance groups in an alpha spectrum was found to be limited primarily by a low energy tail in the pulse height distribution. The effects of scattering and source preparation on the magnitude of this tail were experimentally investigated. A theoretical lower limit of sensitivity for low abundance groups was calculated from consideration of scattering processes in the crystal. Background contamination in new detectors and the increase in background due to the collection of recoil nuclei was studied. Methods for minimizing the increase in background are suggested. A chamber, designed from a consideration of the above results, was constructed and used for the detection and measurement of low abundance groups in the alpha spectra of U234 and the actinium decay series.
Description Author affiliation :: Oak Ridge National Laboratory, Oak Ridge, Tennessee
ISSN 00962015
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1961-01-01
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 8
Issue Number 1
Size (in Bytes) 671.10 kB
Page Count 5
Starting Page 59
Ending Page 63


Source: IEEE Xplore Digital Library