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RE: resuspension factors
A terrific reference on the subject of resuspension factors was just
published by the U.S. Nuclear Regulatory Commission: NUREG-1720
"Re-evaluation of the Indoor Resuspension Factor for the Screening Analysis
of the Building Occupancy Scenario for NRC's License Termination Rule",
NUREG-1720; June 2002.
This NUREG provides an excellent review of past literature concerning
resuspension studies and culminates with a recommendation to use 1E-6 m-1.
You can find it electronically on the following web page:
http://www.orau.gov/ddsc/dose/guidance.htm
Regards
Eric
-----Original Message-----
From: John M Priest Jr [mailto:priestj@DTEENERGY.COM]
Sent: Tuesday, November 26, 2002 3:45 PM
To: radsafe@list.vanderbilt.edu
Subject: resuspension factors
Im looking for some input.
From: brzibung@firstenergycorp.com
To: John M Priest Jr <priestj@dteenergy.com>
Jack:
Would you have knowledge of or know of an electronic reference that
could
provide me with resuspension factors for machining on a lathe - perhaps
surface grinding??
I am working on a lesson plan that will help the techs estimate the
amount
of radioactivity that could be available to become airborne if, for
example, fixed radioactivity was propelled into the air from a machining
operation. I am using values of E-5 per meter to E-7 per meter.
There is an OE that discusses the machining of a valve stem that has a
stellite seat with fixed and loose contamination of 7.8E8 dpm/100 sq.cm.
Consider the airborne activity if you use a resuspension factor of E-5
per
meter.
brz
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