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Re: LLD Need Help!



If you are trying to determine whether a sample is above background, the
more appropriate term would be the decision level

where :

(Embedded image moved to file: pic18515.pcx)
DL in cps(or cpm)
1.645 value corresponds to a 5% false alarm rate.

Other Equations are available in NUREG-1400



Jack Priest
Health Physicist
Davis Besse NPS
jmpriest@firstenergycorp.com
419-321-7809

pic18515.pcx