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Re: ANNUAL DOSE, DOSERATE and the MAXIMUM INDIVIDUAL
Jose,
Thank you for your comment.
I have to clarify that my country didn't adopt 0,114 microSv/h as a "derived
limit" so that compliance with it could ensure compliance with the REAL
REGULATORY LIMIT of 1 mSv/h (Effective Dose).
My post meant to know if it is reasonable for a hp or an inspector to claim
that "SINCE the annual regulatory limit is 1 mSv/y THEN the limit in an hour
in a location MUST BE 0,114 microSv/h IN EVERY CIRCUMSTANCE, even if NOBODY
stays in that location or if somebody stays 1 or so hours per year".
So an instrument MUST read ALWAYS LESS than 0,114 microSv/h.
In other words, they assume a MODEL in wich a member of the public stays in
that location 8760 hours/y, without regard to the real situation, and
claiming that that is what the regulation IMPLIES (hypothesis of the Maximum
individual); that's to say, they INVENT the derived limit of 0,114 microSv/h
and claim that it is a regulatory limit.
I think that this model is unreasonable.
As to your resume of the ICRP 60, I would greatly appreciate it. Thanks in
advance.
Quintino De Notariis
Il giorno 11-09-2002 18:04, J. J. Rozental, jrozental@hotmail.com ha
scritto:
>
> The term limit should only be used for a criterion that must not be
> exceeded.
> Many countries adopt the derived limit: A limit on a measurable quantity
> set, on the basis of a model, such that compliance with the derived limit
> may be assumed to ensure compliance with a primary limit.
>
> The ICRP limit of 1mSv is the total dose which should arise from all
> man-made sources of radiation exposure (excluding medical procedures).
> Dose limits for skin and lens of the eye are 50 mSv and 15 mSv per year,
> respectively.
>
> If you are interested I can send by e-mail a resume in power point of the
> ICRP 60, interesting to explain the System.
>
> Jose Julio Rozental
> jrozental@hotmail.com
> Madrid, until 2-10-2002
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