Re: Adsorption of Xe-133 on activated charcoal

["William A. Fendt" <35346@strauss.udel.edu>]

Somewhere I remember reading that good radioiodine efficiency can be 
expected in an activated charcoal filter if the air residency time in the 
filter was ~0.125 seconds.  Not sure this answers the question but may be 
of some use.  Bill Fendt
Also NUREG-1440 may be of some use in sampling efficiency determinations.

On Wed, 8 Feb 1995, Amir Huda wrote:

> Dear radsafers:
> 
> Does anybody know the relationship between adsorption efficiency of
> activated charcoal for Xe-133 or Iodine and air flow rate?  Is there
> any way of calculating the efficiency without actually doing a
> release measurement all the time?
>