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<p class="MsoNormal"><b>From:</b> Global <global-bounces@list.rpalara.org> <b>On Behalf Of
</b>Douthwaite, Andrew W via Global<br>
<b>Sent:</b> Monday, August 15, 2022 7:14 AM<br>
<b>To:</b> global@list.rpalara.org<br>
<b>Subject:</b> [Global] Emergent Dose Banks During Outages<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" align="center" style="text-align:center;background:yellow"><strong><span style="font-family:"Calibri",sans-serif;color:black">This is an
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<p class="MsoNormal">Peers<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Salem is looking to benchmark industry best practices for establishing emergent dose banks during refuel outages. My questions are:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo2">Do you allocate a bank of estimated dose to account for emergent dose during refuel outages?
<span style="color:red">Yes, see below.</span><o:p></o:p></li></ol>
<ol style="margin-top:0in" start="1" type="1">
<ol style="margin-top:0in" start="1" type="a">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level2 lfo2">If so, how much is it, in Person-Rem?<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level2 lfo2">What percentage of the overall estimate is your bank?
<span style="color:red">At Browns Ferry by procedure, this number is 7-12% of the estimate.</span><o:p></o:p></li></ol>
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<p class="MsoNormal"><o:p> </o:p></p>
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<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo2">How much emergent dose do you typically see during a refuel outage, in Person-Rem?
<span style="color:red">This number has improved dramatically over the last several cycles. Average emergent dose has been 6-12 Rem.</span><o:p></o:p></li></ol>
<ol style="margin-top:0in" start="2" type="1">
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<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level2 lfo2">What percentage is that of the overall exposure your station sees during a refuel outage?
<span style="color:red">This number has fallen within the procedure guidance of 7-12%.</span><o:p></o:p></li></ol>
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<p class="MsoListParagraph"><o:p> </o:p></p>
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<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo2">How do you keep track of your emergent dose?
<span style="color:red">Any dose that supports discovery window issues or is beyond the scope of the outage.
</span><o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="4" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo2">Do you use a separate RWP/Task/ALARA Plan for the purposes of tracking emergent dose?
<span style="color:red">Emergent dose is tracked either through a separate RWP/APR or Work Order.</span><o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><i><span style="font-size:13.0pt;font-family:"Baskerville Old Face",serif;color:black">"Life is about ups and downs. Hills and valleys. But if you stick with it... everything seems to work out." – Wally West<o:p></o:p></span></i></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Corbel",sans-serif;color:black">Andrew Douthwaite
</span></b><span style="font-size:10.0pt;font-family:"Corbel",sans-serif;color:#FF6600">|</span><b><span style="font-size:10.0pt;font-family:"Times New Roman",serif;color:navy">
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</span><span style="font-size:10.0pt;font-family:"Corbel",sans-serif;color:#404040">Salem Radiation Protection</span><span style="font-size:10.0pt;font-family:"Times New Roman",serif;color:#404040"><o:p></o:p></span></p>
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