Re: Self-Absorption Effects on Air Filters -Reply

[Fritz Seiler <faseiler@nmia.com>]

Hi All,

For those filters that have deposits on their surface, the
self-absorption in the deposit becomes important.  We
looked at that about twelve years ago with salt-loading
of filters in the WIPP.  By calculation of the spectra,
we found serious spectral degradation  for Pu and
for Radon daughters.  Later we published the results
in
Seiler F. A., G. J. Newton, and R. A. Guilmette,
"Continuous Monitoring for Airborne Alpha-Emitters
in a Dusty Environment," Health Phys., 54, 503-515,
1988.

I hope that this helps in some cases.

Fritz

*************************

Fritz A. Seiler, Ph.D.
Principal
Sigma Five Associates
P.O. Box 14006
Albuquerque, NM 87191-4006
Tel.    505-323-7848
Fax.    505-293-3911
e-mail: faseiler@nmia.com

**************************


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