Re: Build -up and photon interaction data

[photcoef <photcoef@tiac.net>]

Graphs and tables of all photon interaction coefficients for all elements
are posted on the Web at

http://www.photcoef.com/2121.html

The posted coefficients are mass-coefficients. Linear coefficients and cross
sections for elements, chemical compounds and mixtures, can be calculated by
PHOTCOEF (for DOS) or PHOTKOEF (for WINDOWS). See

http://www.photcoef.com

PHOTCOEF also claculates shielding (with or without consideration of the
buildup factor) and dose deposition. Consideration of the buildup factor in
dose deposition calculations is being incorporated into PHOTCOEF and will be
available after 1 December 1996. 

Paul Kehler.

 

At 10:10 AM 10/10/96 -0500, you wrote:
>At 08:37 PM 10/9/96 -0500, you wrote:
>>We are looking for  WWW sites that have the
>>most up to date build-up factors and 
>>photon interaction (photoelectric, Compton and
>>Pair production) in different absorber materials.
>>
>One source of photon interaction cross sections is mucal (mu, as in
>absorption coefficient) on the web.  You give it element and photon energy,
>it gives you the various interaction coefficients.  URL is
>http://www.csrri.iit.edu/mucal.html
>
>The ANS home page has information about ordering ANS-6.4.3-1991, Gamma-Ray
>Attenuation Coefficients and Buildup Factors for Engineering Materials.  URL is
>http://www.ans.org/pubs/standards/
>
>There are numerous sources for codes you can acquire that will provide
>and/or use this information for shielding calculations.  The cheapest source
>is probably RSICC, formerlly RSIC.  You can perform a search of their
>software library.  URL is
>http://epicws.epm.ornl.gov/rsic.html
>
>Good luck.
>Dave Scherer
>scherer@uiuc.edu
>
>