We source check daily all detectors at Sequoyah.
Jim Rolph
RP Technical Support Superintendent
Tennessee Valley Authority
Sequoyah Nuclear Power Plant
SB2A
PO Box 2000
Soddy Daisy, TN 37384-2000
(423) 843-8115 - Work
(423) 593-0247 - Cell
From: owner-power...@hps1.org
Sequoyah would like to conduct a quick pulse of what other sites are
setting the low background rate (beta) at on the ARGOS-5AB monitors
(sites that are using this monitor). We use 90 CPM for this setting.
Thank you,
Jim Rolph
RP Technical Support Superintendent
Tennessee Valley Authority
TVA's Sequoyah site used the Ludlum Model 12-4 neutron survey meter.
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf
Of MCCALL, CHARLES
Sent: Tuesday, August 14, 2012 3:15 PM
To: powernet@hps1.org
Subject: Powernet: neutron meter
What are you using for a neutron
At TVA SQN we presently use either Ludlum 2200 with an alpha probe or an
Eberline SAC-4 for counting smears. We plan to move to the Ludlum 3030P
soon.
Our limit is 50K dpm (beta/gamma) without supervisor approval. Usually
we go ahead and count the smear on one of the above mentioned
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf
Of roger.schanzenb...@sce.com
Sent: Friday, August 31, 2012 1:20 PM
To: powernet@hps1.org
Subject: Powernet: Quick Survey on Beta Booths
1. What make/model of RCA personnel beta exit monitor do you use?
Canberra
SQN'S response
1) How does your site establish dose goals:
Each job, each day? Online, each job is required to have an estimate on
a daily basis. This is tracked and deltas greater than 5 mrem are
discussed in daily Plan of Day meetings.
Outage, every millirem goes through Site ALARA
We have encountered an unusual situation for us here at Sequoyah. We are
having some ice condenser issues inside containment requiring frequent
containment entries where we typically entered containment once or twice
a month while online. We are experiencing increased temperatures and
humidity
TVA Sequoyah's response
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf
Of Byrum, William F
Sent: Monday, July 01, 2013 1:31 PM
To: powernet@hps1.org
Subject: Powernet: Calibration and Source Check sources
Duke Energy would like to know the following:
Source
Eric,
TVA Sequoyah does the following:
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf
Of Eaton, Eric
Sent: Tuesday, July 02, 2013 2:27 PM
To: 'powernet@hps1.org'
Subject: Powernet: Portal monitor
Greetings all...
After attending the Canberra User's Group
Here at Sequoyah we use HIS-20 to manage our RP instrument inventory.
The RPTs check instruments out and back in using HIS-20 as a regular
part of doing business. During outages when we supplement our RP
workforce we encounter issues with this process. So we want to take a
moment and perform a
TVA has closed our external dosimetry processing laboratory. This
equipment is listed on GovDeals if interested.
http://www.govdeals.com/
Search: TVA
Jim Rolph, CHP
RP Technical Support Superintendent
SB2A
(423) 843-8115 - Office
(423) 593-0247 - Cell
TVA has closed our external dosimetry processing laboratory. We have a
JL Shepherd Model 142 panoramic calibrator containing a ~ 0.6 Curie
Cs-137 source available if someone who has a license and is interested.
The irradiator is about 30 years old and was completely functional when
we close our
TVA-Sequoyah
1. Yes
2. No
3. No cover is used
4. For a few specific jobs where no head hazards exist and the area is an
FME area.
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf Of
Lorenz, Steven M:(GenCo-Nuc)
Sent: Thursday, December 12, 2013 4:26
TVA Sequoyah
1) OSL remains on lanyard with badge (usually within 4-6 inches of
pocket), ED goes into PC pocket
2) N/A
3) We have not seen significant discrepancies due to this placement. We
usually see less than ~15 to 25 out of ~1600 OSL/ED discrepancies per
monitoring
Sequoyah is a 4 Loop Westinghouse plant and our Co-58 RCS activity during a
refueling cycle ranges from a low of 5E-5 to a high of 6E-3 uCi/mL with an
average of 1E-3 uCi/mL like Callaway and Salem.
Jim Rolph, CHP
RP Technical Support Superintendent
SB2A
(423) 843-8115 - Office
(423) 593-0247 -
Hi Eric,
At TVA we document an annual review with a standalone report. This driven by
our Corporate procedure.
Jim
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf Of
emgoldin
Sent: Friday, February 07, 2014 1:40 PM
To: powernet@hps1.org
Subject: Powernet: Annual RP
At Sequoyah we use 2 and 3.
Jim Rolph, CHP
RP Technical Support Superintendent
SB2A
(423) 843-8115 - Office
(423) 593-0247 - Cell
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf Of
Miller, Wade
Sent: Wednesday, March 05, 2014 6:05 AM
To: powernet@hps1.org
Subject:
TVA Sequoyah's configuration uses #1
Jim Rolph, CHP
RP Technical Support Superintendent
SB2A
(423) 843-8115 - Office
(423) 593-0247 - Cell
1
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf Of
sg...@firstenergycorp.com
Sent: Thursday, March 06, 2014 12:36 PM
To:
Steve,
At TVA Sequoyah
1. Yes, we have included Am-241 in our library
2. Canberra performs our calibration with the lowest gamma line being at 88 keV
3. We use the Canberra FastScan
Best regards,
Jim
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf Of
Holmes, Stephen
TVA- Sequoyah uses B
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf Of
sg...@firstenergycorp.com
Sent: Monday, April 07, 2014 11:39 AM
To: powernet@hps1.org
Subject: Powernet: Benchmarking on instrument calibration due dates
Presently Perry RP uses a cal due date for
I just notice an error in my response,
No, we do not include Am-141 in our library.
From: Rolph, James Thomas Jr
Sent: Wednesday, March 19, 2014 6:47 AM
To: powernet@hps1.org
Subject: RE: Quick Whole Body Counter Benchmark
Steve,
At TVA Sequoyah
1. Yes, we have included Am-241 in our library
2
Most of not all of us are all familiar with this requirement.
10 CFR 20.1501(c) The licensee shall ensure that instruments and equipment used
for quantitative radiation measurements (e.g., dose rate and effluent
monitoring) are calibrated periodically for the radiation measured.
Generally
TVA uses the Ludlum Model 12-4 meters. We plan to use the REM-500's for the ANI
Neutron Characterization Studies we are performing soon.
I would like to try out the Thermo RadEye version doing our studies to see if
it would be a viable alternative, however we haven't planned for that so far.
At TVA we used OSL
We use semi-annually, as we just felt that going to 12 months was too long of
period to go without reading. We were processing quarterly before changing to
OSL. We have discussed going to annual wear periods, but are not comfortable
with doing so yet.
Jim Rolph, CHP
RP
I'm looking for calibration, operation, and daily QC or daily response check
procedures for these instruments, if anyone is willing to share what they have.
Thank you,
Jim Rolph, CHP
RP Technical Support Superintendent
(423) 843-8115 - Work
(423) 593-0247 - Cell
I have heard of facility that punches a hole in the BF3 tubes in a sink or
bucket of water and processing the water through their waste water system.
Again before doing this you would want to discuss this with your effluent,
chemistry, and/or license organizations who may have to discuss with
TVA Sequoyah Plant response
Jim Rolph, CHP
RP Technical Support Superintendent
(423) 843-8115- Office
(423) 593-0247- Cell
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf Of
Thompson, Dewey L
Sent: Thursday, November 06, 2014 9:24 AM
To: powernet@hps1.org
Subject:
TVA-Sequoyah is using the Radon Rejection feature.
Jim Rolph, CHP
RP Technical Support Superintendent
(423) 843-8115- Office
(423) 593-0247- Cell
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf Of
Benfield, Eddie
Sent: Monday, December 15, 2014 2:52 PM
To:
We would appreciate any feedback we may get on this subject.
1. How does your site handle the repair and calibration of your portable and
non-portable RP equipment?
a. Performed by your site,
b. by a fleet calibration facility, or
c. sent offsite to a calibration service provider.
2. Has your
Our RPM reports to our Site Plant Manager.
Jim Rolph, CHP
RP Technical Support Superintendent
(423) 843-8115- Office
(423) 593-0247- Cell
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf Of
Sewell, Linda
Sent: Wednesday, January 21, 2015 11:27 AM
To: powernet@hps1.org
1. Exempt
2. 2-assigned to RadWaste and Shipping, 1-assigned to ALARA.
3. Yes
4. CHP or Masters, or experience
Jim Rolph, CHP
RP Technical Support Superintendent
(423) 843-8115- Office
(423) 593-0247- Cell
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf Of
Bebb, Jeremy
Ludlum Model 12 with Model 43-92 alpha detector
Jim Rolph, CHP
RP Technical Support Superintendent
(423) 843-8115- Office
(423) 593-0247- Cell
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf Of
Benjy P Bertossi
Sent: Thursday, January 22, 2015 11:10 AM
To:
TVA-Sequoyah's response below.
Jim Rolph, CHP
RP Technical Support Superintendent
(423) 843-8115- Office
(423) 593-0247- Cell
From: owner-power...@hps1.org [mailto:owner-power...@hps1.org] On Behalf Of
Nadeau, Marc
Sent: Thursday, January 29, 2015 12:27 PM
To: 'powernet@hps1.org'
Cc: Perkins,
At TVA- Sequoyah
1 – Only RP qualified senior technicians
A- Basis- this is how we have setup our respirator program- this qualification
is not available for junior technicians.
B- We do not permit Jr RP technicians issue respirators, it doesn’t matter to
us if an individual is a house or
We would appreciate any feedback we may get on this subject.
What detector is used at your site? (Ludlum 44-9, window area of 15.51 cm2,
open area 12.26 cm2)
What is the type of screen is used on the detectors (Etched screen, Thickness
0.010 Open area 12.26 cm2)
What is the isotope used to
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