Gamma Ray Constant for F-18

[Chris Alston <alstonc@odrge.odr.georgetown.edu>]

>I am looking for the true Gamma Ray Constant for F-18 in the nostalgic
units of R/hr-cm^2/mCi.  There have been values reported in the range of
5.7 - 8.  Can anyone pin it down for me?
>
Scott Dube
sdube@queens.org
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