Re: Self-Absorption Effects on Air Filters

["Gerald Falo"<gerald_falo_at_chppm7__apgea@chppm-ccmail.apgea.army.mil>]

     Ms. Algutifan,
     
     I believe that Skrable, Chabot, and French published a note in thr 
     Health Physics Journal in about 1973 concerning the average depth of 
     burial of alpha emitters in filter media.  I don't have the specific 
     reference, but I recall that it involved measuring alpha to beta 
     emission ratios and using the ratios to estimate the average depth of 
     burial.
     
     Jerry Falo
     jer3ry@aol.com


______________________________ Reply Separator _________________________________
Subject: Self-Absorption Effects on Air Filters 
Author:  <radsafe@romulus.ehs.uiuc.edu > at internet-mail
Date:    10/6/98 8:45 AM


     To refine my request:
     
     Is there a specific procedure, series of equations, or methodology (a 
     cookbook recipe would be nice) that defines how to evaluate alpha 
     self-absorption effects on air filters? The filters I'm interested in 
     are mixed esters of cellulose and the pumps they are attached to pull 
     40 liters per minute.
     
     Thanks,
     Elizabeth Algutifan, MS
     Elizabeth_Algutifan@wssrap-host.wssrap.com 
     Weldon Spring Site Remedial Action Project 
     St. Charles, Missouri
     
     


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