[ RadSafe ] FW: Remball calibration

[Eaton, Eric]

Radsafers:  I am forwarding this for my boss.  Please send any responses
to me (Eric.Eaton at constellation.com).  Thanks in advance for your
help...

> ______________________________________________ 
> From: 	Kenyon, Robert B  
> Sent:	Monday, March 06, 2006 3:11 PM
> To:	Eaton, Eric
> Subject:	Remball calibration
> 
> March 6, 2006
> 
> 			Neutron Survey Meter Calibration Benchmark
> 
> 	This request is being solicited so we may gain a better
> understanding of Neutron Survey Meter calibration throughout the
> nuclear industry. If you would, please answer the following questions
> concerning Neutron Survey meter calibration at your facility. Any
> additional information would be appreciated.
> 
> 1) Does your site currently complete neutron survey meter calibrations
> on-site or use a qualified vendor?   If your site uses a vendor, which
> one? 
> 
> 
> 
> 
> 2) What type of Neutron Source is used for the calibration
> (Pu8Be,AmBe,etc) and what is Curie content?  
> 	What is the neutron energy of the source?
> 
> 	Is it a well or open air source or some other type?
> 
> 
> 
> 3) What dose rates do you calibrate at?
> 
> 
> 
> 
> 4) Do you use any type of neutron shielding during the calibration to
> reduce personnel dose?
> 	(We are considering Borated Poly Sheeting on a moveable frame in
> an attempt to reduce Technician dose during the cal.)
> 
> 
> 
> 
> 5) How exactly do you estimate the personnel dose for the calibration?
> 
> 
> 
> 6) What are the typical historical neutron and gamma exposures
> (estimated and official) recorded for this job?
> 
> 
> 
> 7) What type of neutron survey meter is used at your facility?
> 
> 
> 
> 8) How many units are calibrated and how long does it typically take.
> 
> 
> 
> 9) What is your calibration frequency?
> 
> 
> 
> 10) How many data points are measured ?
> 
> 
> 
> 11) Do you measure the "integrated dose" function?
> 
> 
> 
> 12) What type (how extensive) of RP Job coverage is provided during
> the calibration? Can the Instrument Techs provide their own job
> coverage?
> 
> 
> 
> 13) How is the dose tracked? (Timekeeping, meter integration, etc)
> 
> 
> 
> 14) Do you use a neutron source emission rate correction factor to
> "normalize " the source emissions to the power plant spectrum?
> 		If so, what is your CF?
> 		If not, why not?
> 
> 
> 
> 15) How many technicians to complete this job?  How many technicians
> in your calibration facility?
> 
> 
> 
> 16) What is the size of the area used for neutron calibrations?
> 
> 
> Thank you for your time and effort answering these questions.   
> 
> Bob Kenyon , 
> RAD Support Supervisor, R.E. Nuclear Ginna Station   
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