Two-channel gamma counting of Cr51 and I131
Document Type
Article
Publication Date
1-1-1958
Publication Title
The International Journal Of Applied Radiation And Isotopes
ISSN
0020708X
Abstract
Red blood cells are easily labelled with Cr51 and blood plasma is readily tagged with I131. However, the proximity of the principal gamma energies of these two isotopes complicates the use of differential pulse height analysis techniques for the measurement of doubly labelled blood. Instrumentation for accomplishing this procedure includes a 3 in. well-type scintillation counter operated with two single-channel differential pulse height analyzers. A method is presented for setting up two channels with the analyzers to obtain adequate separation of Cr51 and I131. A simple correction for the cross-channel activities is shown. The accuracy of the method is evaluated by the assay of mixed Cr51 + I131 sources prepared gravimetrically. © 1957.
Volume
3
Issue
2
First Page
156
Last Page
160
DOI
10.1016/0020-708X(58)90010-3
PubMed ID
13524984
Recommended Citation
Adams, R.; Woodward, I. C.; Crane, M. G.; and Holloway, J. E., "Two-channel gamma counting of Cr51 and I131" (1958). Loma Linda University Faculty Publications. 104.
https://scholarsrepository.llu.edu/fac_pubs/104