Response for Robinson
_____________________________________________
From: [email protected] [mailto:[email protected]] On Behalf Of
[email protected]
Sent: Wednesday, January 04, 2012 10:44 AM
To: [email protected]
Subject: Powernet: Beta Correction Factor for Handheld Ion Chamber Instruments
Palo Verde requests the following information:
What beta source is used to establish beta correction factors for handheld ion
chambers (RO-20, RO-2/2A, RSO-50E) at your facility? Depleted Uranium
Is a generic beta correction factor is assigned (such as 4 or 5) or is the
specific value established during calibration assigned (such as 3.8)? 4 is
used for an unbagged instrument. If the beta dose rate must be measured with a
bagged instrument, a value of 8 is used to compensate for the plastic bag
attenuation. These values are verified to be conservative based on depleted
uranium measurements performed during instrument calibration.
Thanks
Gordon Nelson
Radiological Engineering
Palo Verde Nuclear Generating Station
Phone (623) 393-5200
Cell (623) 238-0542
Pager (877) 466-7534
[email protected]
