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Re: Wound dosimetry question
Dr. Patricia Durbin gave a Professional Education
Presentation a Health Physics Meeting in San Diego in
2003 on "The Experimental Basis for a Biokinetic Model
of Radionuclide-Contaminated Wounds." I could not
find an e-mail address, but her phone is listed as
(510) 486-6055. The present VARSKIN program I believe
is limited to beta emitters.
--- Kari_Toews@cameco.com wrote:
> I have a question for the group regarding how to
> perform dosimetry
> calculations for a wound (likely a cut) contaminated
> with natural uranium
> ore. There is significant literature on how to deal
> with the uptake
> (internal) dose, but very little that I have found
> on how to calculate the
> dose to the tissue surrounding the wound itself.
>
> We received a question from a member of our
> workforce who got some slightly
> contaminated grease in a cut and was concerned about
> some skin irritation
> afterwards. There was obviously negligible chance
> of a deterministic
> effect in this case, and the worker was reassured
> qualitatively that the
> irritation was more likely from the grease than the
> radiation. But, it got
> me interested in having a simple dosimetry model for
> estimating tissue dose
> in this type of scenario. Unfortunately, I am having
> trouble dealing with
> the dose from alpha radiation. In a cut, the
> protective layer of skin is
> removed, and the alphas have direct access to the
> tissue, but the mass of
> tissue that is exposed to the alpha particles is
> extremely small (hence
> extremely high dose). Is there a way to perform
> wound dosimetry for a case
> like this that gives a meaningful answer? Does
> anyone else deal with this
> kind of issue/how is it handled?
>
> Thanks in advance for you assistance,
>
> Kari
>
>
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John Jacobus, MS
Certified Health Physicist
e-mail: crispy_bird@yahoo.com
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