[Powernet] Failed Fuel Action Plans

[Robinson, Brent via Powernet]

At Entergy, we are in the process of updating our RP failed fuel procedure and 
action plan process.  We are envisioning specific BWR and PWR action plans, 
using a graded approach and action/owner/due dates format for the important 
actions.   We would appreciate copies of your relevant procedures and/or action 
plans.

Feel free to contact me directly using my email address brob...@entergy.com

Thanks in advance!

Brent Robinson
Radiation Protection
Arkansas Nuclear One
brob...@entergy.com
Office:  (479) 858-4771
Cell:  (772) 708-9241
[cid:image002.jpg@01D1A6AD.C46E48D0]


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Re: [Powernet] DLR vs SRD Comparison

[Robinson, Brent via Powernet]

At Entergy, we use the following criteria for SRD – DRD discrepancy 
investigations (see red below for 100 mrem and below):



EVALUATE AND DOCUMENT DLR/SRD discrepancies for the following conditions: [INPO 
05-008, Rev. 2]



· Either the DLR DDE OR the SRD dose is greater than or equal to 50 
mrem but less than or equal to 100 mrem AND the discrepancy is greater than 25 
mrem

· Either the DLR DDE OR the SRD dose is greater than 100 mrem AND the 
difference between the two is greater than:

o   25 percent for photon radiation

o   50 percent for neutron radiation


% Diff. =[(𝑆𝑅𝐷 −𝐷𝐿𝑅 𝐷𝐷𝐸)/𝐷𝐿𝑅 𝐷𝐷𝐸] 𝑋 100

Thanks!

Brent Robinson
Radiation Protection
Arkansas Nuclear One
brob...@entergy.com
Office:  (479) 858-4771
Cell:  (772) 708-9241
[cid:image002.jpg@01D1A6AD.C46E48D0]


From: Powernet  On Behalf Of James P Stewart 
via Powernet
Sent: Tuesday, September 24, 2019 7:47 AM
To: powernet@hpspowernet.org
Cc: James P Stewart 
Subject: [Powernet] DLR vs SRD Comparison


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What criteria, if any, do you use for SRD vs DLR comparison below 100 mrem?


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Re: [Powernet] Quick Initial DLR Issue & DLR Exchange survey

[Robinson, Brent via Powernet]

Hey Dave! ... see ANO's answers below:

Thanks!

Brent Robinson
Radiation Protection
Arkansas Nuclear One
brob...@entergy.com
(479) 858-4771
[cid:image002.jpg@01D1A6AD.C46E48D0]


From: Powernet [mailto:powernet-boun...@hpspowernet.org] On Behalf Of Dave Raye 
via Powernet
Sent: Wednesday, June 26, 2019 11:41 AM
To: 'powernet@hpspowernet.org'
Cc: Dave Raye
Subject: [Powernet] Quick Initial DLR Issue & DLR Exchange survey


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Hello all,
I have seen in a recent, related inquiry that a number of sites have an 
"Clerk/Admin" as their Dosimetry Resource, as does DC Cook.  Acknowledging that 
"Issuing DLRs to workers" or "Performing Routine DLR Exchanges" are not tasks 
contained in ACAD 93-008, I'd appreciate your response to this quick survey:

Do you have an Admin resource and/or RP/HP Tech in Dosimetry?   RP Techs ONLY


Do you have a qualification similar to, "Perform initial issue of DLRs to 
workers" (this does not include special/extremity dosimeters)?   Yes


Do you have a qualification similar to, "Prepare for/perform routine DLR 
Exchange"?   Yes


If you have a specific qualification to perform such tasks, are they obtained 
via OJT/TPE, Lab Eval, Simple Task (no formal qual required)?   OJT/TPE


Cook "has always" performed OJT/TPE for these two tasks, but we are considering 
making them a Lab Eval or even just a simple task, acknowledging that we have a 
pretty detailed procedure for both activities.

I appreciate your replies,

[cid:image003.png@01D52C1D.04C264A0]

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[Powernet] RP Position Requirements

[Robinson, Brent via Powernet]

I've been asked to put an personnel assessment tool and position needs document 
for RP personnel.  This document will be used to define key job 
responsibilities, knowledge and training requirements, education, etc. for the 
various positions within RP.   Does anyone have any document I can R&D (ripoff 
and duplicate)?

Thanks!

Brent Robinson
Radiation Protection
Arkansas Nuclear One
brob...@entergy.com
(479) 858-4771
[cid:image002.jpg@01D1A6AD.C46E48D0]


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Re: [Powernet] EG&G Ortec DSPEC for HPGes

[Robinson, Brent via Powernet]

When I was at St. Lucie, we used DSPECs on our HPGe detectors.

Call or email me.

Thanks!

Brent Robinson
Radiation Protection
Arkansas Nuclear One
brob...@entergy.com
(479) 858-4771
[cid:image002.jpg@01D1A6AD.C46E48D0]


From: Powernet [mailto:powernet-boun...@hpspowernet.org] On Behalf Of BJ 
Thompson via Powernet
Sent: Monday, March 25, 2019 7:57 AM
To: powernet@hpspowernet.org
Cc: BJ Thompson
Subject: [Powernet] EG&G Ortec DSPEC for HPGes


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Quick question - does anyone still use a DSPEC made by EG&G Ortec for their 
HPGes?

Barbara J. Thompson
North Anna Power Station
1022 Haley Drive
Mineral, Va 23117
Superintendent Health Physics Technical Services
bj.thomp...@dominionenergy.com
Phone:  540-894-2638

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[Powernet] Process and Area Radiation Monitors

[Robinson, Brent via Powernet]

I'd appreciate information on the following:


1.   Who calibrates and repairs the installed plant process montors (e.g.,  
air and liquid monitors)?



2.   Who calibrates and repairs the installed plant area radiation monitors?



3.   Who is the designated owner of these monitors (e.g., I&C, RP, 
Engineering, Chemistry supervision, other, etc.)?



4.   If you believe you have a good program, could you please provide a 
contact name and phone/email?

Thanks!

Brent Robinson
Radiation Protection
Arkansas Nuclear One
brob...@entergy.com
(479) 858-4771
[cid:image002.jpg@01D1A6AD.C46E48D0]


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[Powernet] What neutron survey meters are you using?

[Robinson, Brent via Powernet]

We are looking at replacing our neutron survey meters.   I'm familiar with the 
REM-500 and the Ludlum 12-4 (9" moderator) meters.


* What meter are you using?



* Who calibrates it?



* What is your (and technicians) overall impression of this meter?

Thanks!

Brent Robinson
Radiation Protection
Arkansas Nuclear One
brob...@entergy.com
(479) 858-4771
[cid:image002.jpg@01D1A6AD.C46E48D0]


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[Powernet] PWR Containment Dose Rates at Different Power Levels

[Robinson, Brent via Powernet]

Does any PWR site have data or document(s) that you use to reliably estimate 
neutron and gamma dose rates at various reactor power levels (inside your 
biowall), i.e., tables, graphs, or factors that you used to establish neutron 
and gamma dose rates vs. reactor power?

Please feel free to respond to me directly if desired.

Any help would be greatly appreciated!

Thanks!

Brent Robinson
Radiation Protection
Arkansas Nuclear One
brob...@entergy.com
(429) 858-4771
[cid:image002.jpg@01D1A6AD.C46E48D0]


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Re: [Powernet] Quick Benchmarking on ED's

[Robinson, Brent via Powernet]

DMC-3000s since 2014

 [cid:image001.png@01CBE7DD.5772A170]
Brent L. Robinson
TECHNICAL RP SUPERINTENDENT
 Florida Power & Light
 St. Lucie Plant
 6501 S. Ocean Drive
 Jensen Beach, Florida 34957

 (772) 467-7308
 brent.robin...@fpl.com



From: Powernet [mailto:powernet-boun...@hpspowernet.org] On Behalf Of Kinmark, 
Michael L. via Powernet
Sent: Wednesday, October 31, 2018 2:20 PM
To: powernet@hpspowernet.org
Cc: Kinmark, Michael L.
Subject: [Powernet] Quick Benchmarking on ED's

CAUTION - EXTERNAL EMAIL


Question from Columbia on Electronic Dosimeter make/model

Which ED model are you currently using?

DMC-3000?, DMC-2000S?, Or other?

Plans to change in the future?

Columbia:  Currently using DMC-2000S.  Tentative plans to change over to 3000 
in 2 years.

Sincerely,

Michael Kinmark
HP Staff Advisor III
Radiological Support
Columbia Generating Station
509-377-2091
mlkinm...@energy-northwest.com


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Re: [Powernet] Storage of DLR's

[Robinson, Brent via Powernet]

St. Lucie stores DLRs on site

 [cid:image001.png@01CBE7DD.5772A170]
Brent L. Robinson
TECHNICAL RP SUPERINTENDENT
 Florida Power & Light
 St. Lucie Plant
 6501 S. Ocean Drive
 Jensen Beach, Florida 34957

 (772) 467-7308
 brent.robin...@fpl.com



From: Powernet [mailto:powernet-boun...@hpspowernet.org] On Behalf Of Stoffel, 
Scott via Powernet
Sent: Thursday, October 25, 2018 11:14 AM
To: powernet@HPSpowernet.org
Cc: Stoffel, Scott
Subject: [Powernet] Storage of DLR's

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I would like to know how many plants store their DLRs onsite and how many allow 
them to be taken offsite. If the DLR's are taken offsite what type of 
background issues are you having.

thanks

Scott Stoffel

Senior Health Physicist
119/1/123
(805) 545-4422

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[Powernet] 20.1905 Exemption to Labeling Requirements (for containers)

[Robinson, Brent via Powernet]

Are you taking advantage of the labeling exemption in 20.1905(g)?

If YES, how is this performed?

(g) Containers holding licensed material (other than sealed sources that are 
either specifically or generally licensed) at a facility licensed under Parts 
50 or 52 of this chapter, not including non-power reactors, that are within an 
area posted under the requirements in § 20.1902 if the containers are:

(1) Conspicuously marked (such as by providing a system of color coding of 
containers) commensurate with the radiological hazard;

(2) Accessible only to individuals who have sufficient instruction to minimize 
radiation exposure while handling or working in the vicinity of the containers; 
and

(3) Subject to plant procedures to ensure they are appropriately labeled, as 
specified at § 20.1904 before being removed from the posted area.

Thanks!

 [cid:image001.png@01CBE7DD.5772A170]
Brent L. Robinson
TECHNICAL RP SUPERINTENDENT
 Florida Power & Light
 St. Lucie Plant
 6501 S. Ocean Drive
 Jensen Beach, Florida 34957

 (772) 467-7308
 brent.robin...@fpl.com



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Re: [Powernet] Susquehanna NPP benchmark question - extremity dose tracking

[Robinson, Brent via Powernet]

See St. Lucie's response in RED below ...

From: Powernet [mailto:powernet-boun...@hpspowernet.org] On Behalf Of Barnhart, 
Jarrad T via Powernet
Sent: Monday, April 23, 2018 10:43 AM
To: 'powernet@HPSpowernet.org'
Cc: Barnhart, Jarrad T
Subject: [Powernet] Suquehanna NPP benchmark question - extremity dose tracking

CAUTION - EXTERNAL EMAIL


Our current station procedures direct tracking of extremity dose to be 
performed using PICs in conjunction with each extremity DLR.

* Is your facility tracking extremity dose using PICs, or do you use 
electronic dosimeters?  Electronic dosimeters

* Do you have any internal OE or technical basis for using one over the 
other?  By process, we place the ED on the wrist/ankle, and multiply the 
reading by 2 to estimate the SDE-ME value.  This has proven to be 
conservatively high but in the ball park of the actual extremity DLR results.

Thank you,

JARRAD T. BARNHART
Radiological Operations Supervisor - Programs | Susquehanna
jarrad.barnh...@talenenergy.com
Office: 570.542.6529 | NUCSB2
www.TalenEnergy.com | 769 Salem Blvd., Berwick, PA 
18603




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Re: [Powernet] Neutron dose tracking

[Robinson, Brent via Powernet]

See the St. Lucie response below ...


1.   A flow chart is used to drive the method to perform neutron monitoring 
of personnel.   The process evaluates whether the work involves containment 
entry, ISFSI, a neutron source, or in areas outside the containment (such as by 
the escape hatch), etc..   For the most part, neutron to gamma ratios (vs. 
gamma to neutron) are used, that are based on historical surveys by location, 
component ID, standardized survey points, and evaluation of historical 
estimated to DLR dose.   Once determined, a neutron correction factor (NCF) is 
entered into Sentinel (the RP computer system software), which automatically 
calculates the estimated neutron by multiplying the NCF by the SRD gamma value. 
 We have found this to be very accurate at determining neutron dose.   However, 
it does get a little tricky when going to multiple areas of containment (due to 
the varying neutron to gamma ratios), but we have NCFs to apply in those 
situations also.If the survey during the work activity indicates a neutron 
to gamma ratio different than the NCF in Sentinel, we have supervision evaluate 
whether to use the Sentinel NCF or manually override the NCF using the survey 
ratio.

2.   The criteria above is specific for the work performed and area to be 
entered.

3.   No

4.   Yes ... guidance for moderated and unmoderated sources

5.   Monthly in accessible areas outside of containment (including the 
ISFSI pad), and upon entry (or use) in containment or with source use.

Good luck!

 [cid:image001.png@01CBE7DD.5772A170]
Brent L. Robinson
TECHNICAL RP SUPERINTENDENT
 Florida Power & Light
 St. Lucie Plant
 6501 S. Ocean Drive
 Jensen Beach, Florida 34957

 (772) 467-7308
 brent.robin...@fpl.com



From: Powernet [mailto:powernet-boun...@hpspowernet.org] On Behalf Of Beth 
Heyeck via Powernet
Sent: Monday, April 16, 2018 3:33 PM
To: powernet@HPSpowernet.org
Cc: Beth Heyeck
Subject: [Powernet] Neutron dose tracking

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We are looking at streamlining our neutron dose tracking and are wondering how 
other plants are performing it.


1.   Which do you use for determining neutron dose for workers in Neutron 
Exposure Areas:

a.   Stay time tracking

b.  Gamma to neutron ratios

c.   Neutron sensitive SRDs

d.  Other

2.   Do you have specific criteria for using any of the above?

3.   Are there any exemptions to tracking neutron doses in Neutron Exposure 
Areas, and how are those documented?

4.   Do you track neutron dose outside of Neutron Exposure Areas/when 
handling neutron sources?

5.   How often do you perform neutron surveys of Neutron Exposure Areas?

Elizabeth Heyeck, CHP
Senior Health Physicist
D.C. Cook Nuclear Plant
269-466-2545
eahey...@aep.com


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Re: [Powernet] [EXTERNAL] Re: SRD settings question

[Robinson, Brent via Powernet]

No clock use at St. Lucie.

 [cid:image001.png@01CBE7DD.5772A170]
Brent L. Robinson
TECHNICAL RP SUPERINTENDENT
 Florida Power & Light
 St. Lucie Plant
 6501 S. Ocean Drive
 Jensen Beach, Florida 34957

 (772) 467-7308
 brent.robin...@fpl.com



From: Powernet [mailto:powernet-boun...@hpspowernet.org] On Behalf Of Derek 
Hultquist via Powernet
Sent: Tuesday, April 17, 2018 7:17 AM
To: powernet@hpspowernet.org
Cc: Derek Hultquist
Subject: Re: [Powernet] [EXTERNAL] Re: SRD settings question

CAUTION - EXTERNAL EMAIL


Dang, I may not have been specific enough. I meant the function that has the 
current time as a display option which you can toggle from the dose display. 
I.e to use the dosimeter as a clock/watch.

Sorry for any confusion!

Derek
Sent from my iPhone

On Apr 17, 2018, at 6:26 AM, ROSSER, FREDERICK W via Powernet 
mailto:powernet@hpspowernet.org>> wrote:
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Hi Derek,

I am the Dosimetry/Instrument Specialist at Grand Gulf Nuclear Station (and in 
spite of it, an alumni of D. C. Cook)  We use the clock function for our 
electronic dosimeters.  We set it for 14 hours.  It is only annoying if you 
take it home or try to keep one for yourself.  We have found it useful for the 
most part.

Fred Rosser
HP Specialist
Grand Gulf Nuclear Station
601 437-6571

From: Powernet [mailto:powernet-boun...@hpspowernet.org] On Behalf Of Derek 
Hultquist via Powernet
Sent: Tuesday, April 17, 2018 3:27 AM
To: 'powernet@hpspowernet.org'
Cc: Derek Hultquist
Subject: [Powernet] SRD settings question


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D. C. Cook is wondering whether sites have self-reading dosimeters that have a 
"clock" function on the dosimeter.

If the dosimeter does have a clock function, do you use it?

For the plants that do use it, have you noted any positives or negatives with 
its use?

I would think it would be more of a distraction than a help but looking for 
feedback if you have used it.

Thanks,

Derek Hultquist
RP Supervisor - ALARA and Instrumentation
D. C. Cook
(269) 465-5901 x2088

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