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Re: 30 mCi of I-131
Mike
I suggest that you take a look at NCRP 37 - Precautions in the Management
of Patients Who Have Received Therapeutic Amounts of Radionuclides, which
was issued 1 October 1970. Chapter 2, on the Release from Hospital of
Patients Containing RAM, specifies, e.g, that patients *shall* not be
released if the maximum integrated exposure, at one (1) meter, assuming
continuous exposure, would exceed 5R. It gives examples and
recommendations, of body burdens, associated exposure rates, and integrated
exposures, for a number of scenarios and nuclides.
Regards
cja
alstonc@odrge.odr.georgetown.edu
P.S. I hope that's not Terry Gilliam's "Brazil".
At 02:51 PM 6/10/00 -0500, you wrote:
>
>Does anyone have a **documented** reference on which the release criterion
>of 30 mCi for I-131 therapy patients, employed for so many years, was based?
>We are trying to cite this in a paper, and need an objective reference if
>possible. I remember hearing once that it was based on some real
>calculations, regarding contact of the radioactive patient with the public
>and family members, occupancy factors, etc., but I can't find the specifics
>of this calculation, if it exists, or the source. (I am aware of the newer
>Nureg and RegGuide on this subject, but we want to reference this earlier
>standard in our discussion.) Thanks in advance for any help.
>
>
>
>Michael Stabin, PhD, CHP
>Departamento de Energia Nuclear/UFPE
>Av. Prof. Luiz Freire, 1000 - Cidade Universitaria
>CEP 50740 - 540
>Recife - PE
>Brazil
>Phone 55-81-271-8251 or 8252 or 8253
>Fax 55-81-271-8250
>E-mail stabin@npd.ufpe.br
>
>"Quantum Mechanics: The dreams stuff is made of"
>- Steven Wright
>
>
>
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