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Re: Dose Rates from Patients -Reply



In a message dated 96-07-09 19:58:32 EDT, Connie Katarkus wrote:

<< occupational dose-monitoring is required for those workers who are "likely
to
 receive" 10% of the MPD
 (maximum permissible dose).  Since the whole-body occupational MPD is
 5000mRem/year,  the staff would have to argue that they are 'likely' to
receive
 500mRem from these patient(s) to insist upon dosimetry >>

Just had to throw a regulatory rachet in the works - 10 CFR 20.1502(a)(3)
also requires that individuals entering a "high radiation area" be monitored.
 And, 10 CFR 20.1003 defines a "high radiation area" as "an area, accessible
to individuals, in which radiation levels COULD result in an individual
receiving a dose equivalent in excess of 0.1 rem in 1 hour at 30 cm (12
in)..."  In other words, whoever the patient is accessible to must be
monitored...as long as they're reading in excess of 100 mr/hr at a foot (11
mr/hr at a meter?...it's late).

Barbara L. Hamrick
Los Angeles County Radiation Management
BLHamrick@aol.com