Re: Self-Absorption Effects on Air Filters -Reply

[Jeff Whicker <jjwhicker@lanl.gov>]

Michael,

You are correct that correction factor of 2 in Simons (1956) was for
cellulose filters.  Perhaps the references mentioned by Joe Alvarez could
be helpful for other filter types.  However, Moore et al in HPJ 65:1, 69-81
is a good study on the effects of a number of variables on the detection of
alpha particles.  The variables studied included filter burial, mass
loading, particle size, source-detector gap size, and the size of detector
relative to the collection area of the filter.

Best regards,


At 06:28 PM 10/6/98 -0500, you wrote:
>Jeff,
>
>Please correct me if wrong, but the self-absorption number
>correction factor (2) quoted in Andy, John and Mary's paper (HPJ
>65:1, 69-81) from Simons (1956) are also for cellulose fiber filters, not
>cast membrane MCE's (e.g. Corning's Membra-Fil or Millipore's
>Fluoropore).
>
>Otherwise, the paper IS an excellent resource.
>
>v/r
>Michael
>mford@pantex.com
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Jeff Whicker

Los Alamos National Laboratory
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