[ RadSafe ] Linear attenuation coefficient for biological ashes

[blreider at aol.com]

Lidia - you also need the density of the elements plus the X-ray energies.   

There is software on the market that helps with these calculations.  Microshield is one that can be used if the source is composed of radionuclides rather than generating devices or if theX-ray energies are known. 

Barbara Reider, CHP




-----Original Message-----
From: Dixon, John E. (CDC/ONDIEH/NCEH) (CDC/ONDIEH/NCEH) <gyf7 at cdc.gov>
To: radsafe <radsafe at health.phys.iit.edu>
Sent: Thu, Aug 26, 2010 8:33 am
Subject: Re: [ RadSafe ] Linear attenuation coefficient for biological ashes


Lidia,
If you can determine the elemental composition using X-ray spectroscopy, you 
ould calculate the coefficient for each sample. X-ray spec could give you what 
s in the sample, but not what the sample "looks like" inside.
Regards,
ohn Dixon
----- Original Message -----
rom: radsafe-bounces at health.phys.iit.edu <radsafe-bounces at health.phys.iit.edu>
o: 'radsafe at health.phys.iit.edu' <radsafe at health.phys.iit.edu>
ent: Thu Aug 26 06:59:38 2010
ubject: [ RadSafe ] Linear attenuation coefficient for biological ashes
Dear all,
I am looking for the linear attenuation coefficient of X-rays in ashes. I 
hecked the NIST database http://physics.nist.gov/PhysRefData/XrayMassCoef/tab4.html 
 but there is no such material included.
Does anyone have a suggestion of where to find data for biological ashes?
Rgds
Lidia Silva
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