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Abnormal Event ALARA Optimization





Does anyone have any references/opinions as to ALARA optimization for abnormal

events?



In general, optimization says that an the cost of an ALARA activity/dose

saving component is justified if that cost is less than the dose averted times

a $/person-rem value.



Is not the dose averted a function of the probability of the occurrence of the

problem that causes the dose?  If a particular abnormal event has a dose

consequence of 10 rem but the probability of occurrence is only 1/20 years,

what value do you use for the dose averted calculation?  10 rem or 10 rem /20

years or 0.5 rem?



Any thoughts/references???



Tom Goff

WIPP ALARA Coordinator

WIPP Radiological Engineering

(505) 234-8861

(fax)  234-6027

e-mail  GoffT@WIPP.Carlsbad.NM.US

page (505) 234-8850  (pager 479)

P.O. Box 2078

Carlsbad, NM 88221

Radiological Engineering:  Anticipating Radiological Problems

             Developing Techniques to Deal with Them





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