1. Does your plant use all seven compartments per Regulatory Guide
8.40, Table 1 when using EDEX (i.e. every multipack has seven dosimeters)?
Not every multipack has to have seven dosimeters, our procedures allow us
to group the compartments as we see fit. We do use all seven dosimeters
for diving.
2. If “No” to #1 and your site combines compartments, what
locations do you group together? The most common grouping is
everything below the head as one compartment and the head/neck as a
separate compartment. Sometimes this is also in conjunction with EDs
on the upper arms. So far the EDs have been used only to determine
the highest dose to the body, not to perform the EDEX calculations.
3. Has your site performed any calculations to determine the
delta in total EDEX dose using all seven dosimeters versus the
overall dose using combined compartments? No.
Elizabeth Emily
Health Physicist
Cook Nuclear Plant
work: 269-465-5901 ext 2545
[email protected]
"Chlebowy, Corrin
N"
<Corrin.Chlebowy@ To
cengllc.com> "[email protected]"
Sent by: <[email protected]>
owner-powernet@hp cc
s1.org
Subject
Powernet: EDEX Compartment Usage
09/18/2013 04:11 Inquiry
PM
Please respond to
[email protected]
This is an EXTERNAL email. STOP. THINK before you CLICK links or OPEN
attachments.
Nine Mile Point is conducting a dosimetry focus self assessment. Any and
all information you can provide on the following effective dose equivalent
external questions would be greatly appreciated.
1. Does your plant use all seven compartments per Regulatory
Guide 8.40, Table 1 when using EDEX (i.e. every multipack has seven
dosimeters)?
2. If “No” to #1 and your site combines compartments, what
locations do you group together?
3. Has your site performed any calculations to determine the
delta in total EDEX dose using all seven dosimeters versus the
overall dose using combined compartments? If “Yes”, would you be
willing to share your results with me at [email protected]?
Thank y’all for your time. Have a wonderful day.
Corrin Chlebowy
[email protected]
Associate Plant Health Physicist
Nine Mile Point Nuclear Station
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