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RE: Mass Attenuation Coefficient
Claude,
Try the Federal Guidance Report No.12, External Exposures to Radionuclides
in Air; Water; and Soil at http://homer.hsr.ornl.gov/VLAB/FedGR12.html The
report itself gives values for air and soil composition. The dose
coefficients can be accessed from the Web site.
Soil composition is listed as follows, with water being 30% and air 20% by
volume, and the density is 1.6 X 10^3 kg/m^3
Element Mass Fraction
H 0.021
C 0.016
O 0.577
Al 0.050
Si 0.271
K 0.013
Ca 0.041
Fe 0.011
-- John
John Jacobus, MS
Certified Health Physicist
3050 Traymore Lane
Bowie, MD 20715-2024
E-mail: jenday1@email.msn.com (H)
-----Original Message-----
From: Claude Laney [mailto:cflaney@BELLSOUTH.NET]
Sent: Tuesday, July 02, 2002 7:35 AM
To: radsafe@list.vanderbilt.edu
Subject: Mass Attenuation Coefficient
I am looking for a value and reference for a Co-60 photon mass attenuation
coefficient for soil. Does anyone know of or have a reference that provides
this information?
Thanks in advance for your help.
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