SELF-ABSORPTION IN SOURCES PREPARED FOR 4π BETA COUNTING

Using the 4πβ-γ coincidence method the self-absorption of 4πβ counting sources prepared by a number of source preparation techniques has been measured for the negatron emitters Cs 134 (86-kev branch only), Nb 95 , Hg 203 , Co 60 , Sc 46 , Rb 86 , Au 198 , Na 24 , and the positron branch of Cu 64 . T...

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Bibliographic Details
Published in:Canadian journal of chemistry 1959-06, Vol.37 (6), p.1109-1114
Main Authors: Merritt, Janet S, Taylor, J. G. V, Campion, P. J
Format: Article
Language:English
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Summary:Using the 4πβ-γ coincidence method the self-absorption of 4πβ counting sources prepared by a number of source preparation techniques has been measured for the negatron emitters Cs 134 (86-kev branch only), Nb 95 , Hg 203 , Co 60 , Sc 46 , Rb 86 , Au 198 , Na 24 , and the positron branch of Cu 64 . The self-absorption varied from a few tenths of one per cent to about ten per cent for sources with a mean superficial density of 2  μg/cm 2 for most of the nuclides studied. Subsidiary experiments were carried out to indicate the variation of self-absorption with source superficial density.
ISSN:0008-4042
1480-3291
DOI:10.1139/v59-160