RE: EPDs for personnel monitoring and surveys

["Williamson, Matthew" <Matthew.Williamson@nypa.gov>]

Radiography is the one regulation that is quite specific on
dosimetry..."each individual wears, on the trunk of the body, a
combination of direct reading dosimeter, an operating alarm ratemeter,
and either a film badge or a TLD"...10CFR.34.47.  The alarming rate
meter must have special functions for changing the alarm setpoint.

The radiation survey instruments are also quite specific as far as
calibration.

It's probably not a great idea to be sticking your chest out checking
for potential high dose rates.

With the rash of events lately, I don't know how they could begin to
back off on requirements.

The alarming rate meters should eliminate accidental exposures, as Mike
said, provided they are worn; and the dose received can be quantified
with the TLD or Film also provided they are worn; and the surveys will
verify the source is retracted provided there are batteries in the
survey meter.

Matt Williamson
Indian Point Unit 3
Williamson.m@nypa.gov <mailto:Williamson.m@nypa.gov> 
914-736-8416

Not reviewed by anyone
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