RE: Gamma Ray Constant for F-18

["Heinmiller, Bruce" <heinmillerb@aecl.ca>]

I question if the upper range is for the same quantity (exposure rate
constant (defined, loosely speaking, in this case by your units)).  Using
2.96E-3 or 2.97E-3 m^2/kg for muen/rho for air, and using 8.76 mGy/R (from a
W-bar value of 33.97 eV/i.p. for air), I calculate 5.87 R/h at 1 cm from a
mCi.

Bruce Heinmiller CHP
heinmillerb@aecl.ca

> ----------
> From: 	Chris Alston[SMTP:alstonc@odrge.odr.georgetown.edu]
> Reply To: 	radsafe@romulus.ehs.uiuc.edu
> Sent: 	Monday, January 31, 2000 1:11 PM
> To: 	Multiple recipients of list
> Subject: 	Gamma Ray Constant for F-18
> 
> >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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