Re: Mass Attenuation Coef.

["Scott D. Kniffin" <Scott.D.Kniffin.1@gsfc.nasa.gov>]

This is the one I have in my web bookmarks.  I hope it's what you want.

http://www.physics.nist.gov/PhysRefData/XrayMassCoef/cover.html

Tables of X-Ray Mass Attenuation Coefficients
and Mass Energy-Absorption Coefficients 
1 keV to 20 MeV for Elements Z = 1 to 92 
and 48 Additional Substances of Dosimetric Interest*

At 09:22 12/09/97 -0600, you wrote:
>Does anyone know of a site for "Photon Mass Attenuation and 
>Energy-absorbtion Coefficients from 1keV to 20 MeV".  These are 
>referenced to "Int. J.Appl. Radiat. Isot" (1982),  which I could not 
>find either.  I am especially interested in Si, SiO2, and C 
>(diamond).
>
>Thanks,
>
>--------------------
>
>Michael Krzesniak
>Crane Division, NSWC
>Code 6051, B-3059
>300 Highway 361
>Crane IN 47522-5001
>
>Phone: 812-854-6086
>Fax:   812-854-3008
>email: krzesniak@atd.crane.navy.mil
>
>