Computer Simulation of Different Geometries and Spectra

[Les Slaback <lester.slaback@nist.gov>]

A slight commercial plug.....
Canberra has a routine to compute detector efficiencies for virtually any
geometry.  Contact Frazier Bronson.
If you have a need that requires good documentation for a significant
volume of similar samples this is probably the best approach. (note the
qualifications.).
Disclaimer:  the above are the personal musings of the author, and do not
represent any past, present, or future position of NIST, the U.S. government,
or anyone else who might think that they are in a position of authority. 
Lester Slaback, Jr.  [Lester.Slaback@NIST.GOV] 
NBSR Health Physics 
Center for Neutron Research 
NIST
100 Bureau Dr.  STOP 3543 
Gaithersburg, MD  20899-3543 
301 975-5810 
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