<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0cm;
margin-right:0cm;
margin-bottom:0cm;
margin-left:36.0pt;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle20
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:2050713907;
mso-list-type:hybrid;
mso-list-template-ids:-1876365682 1416526274 134807555 134807557 134807553 134807555 134807557 134807553 134807555 134807557;}
@list l0:level1
{mso-level-start-at:0;
mso-level-number-format:bullet;
mso-level-text:-;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-font-family:Calibri;}
@list l0:level2
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:"Courier New";}
@list l0:level3
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Wingdings;}
@list l0:level4
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Symbol;}
@list l0:level5
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:"Courier New";}
@list l0:level6
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Wingdings;}
@list l0:level7
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Symbol;}
@list l0:level8
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:"Courier New";}
@list l0:level9
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Wingdings;}
ol
{margin-bottom:0cm;}
ul
{margin-bottom:0cm;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head><body lang="EN-GB" link="#0563C1" vlink="#954F72">
<p><b>[Classification: NOT PROTECTIVELY MARKED]</b></p>
<div>
<div class="WordSection1">
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Hi Kevin,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">We use tungsten impregnated Silflex shielding for our Holtec HI-TRAC cask work:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="color:#1F497D;mso-fareast-language:EN-US"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D;mso-fareast-language:EN-US">Shield bell, tungsten/neutron blankets hung on a circular ring on a support stand in the low dose rate are, then lifted to the top of the HI-TRAC<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="color:#1F497D;mso-fareast-language:EN-US"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D;mso-fareast-language:EN-US">MPC lid “pizza slices” with tungsten/neutron shielding to put over the annulus, neutron only for the centre of the lid<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="color:#1F497D;mso-fareast-language:EN-US"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D;mso-fareast-language:EN-US">Silflex tungsten/neutron blankets for the top of our MPC when a person needs to step over the annulus onto the MPC lid to remove the MPC lifting trunnion bolts<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">We have tungsten T-Flex “snakes” based upon the Braidwood design for our MPC annulus area, very effective. These are from NPO.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">We also use standard high temp lead wool blankets to move around when needed to support work over the MPC/HI-TRAC; we do additional tasks compared to standard MPCs including lid to
shell milling and UT of the LTS weld.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">All shielding is shown here:
<a href="https://www.isoe-network.net/docs/symposium-proceedings-classification/job-experiences/dry-cask-storage-1/4012-parlone2018-ppt-2/file.html">
https://www.isoe-network.net/docs/symposium-proceedings-classification/job-experiences/dry-cask-storage-1/4012-parlone2018-ppt-2/file.html</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">And I can make an ALARA report with the shielding effectiveness available to you if you wish.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Richard<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#FF6F18">Richard Parlone</span></b><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#04488D">Head of Radiological Protection<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#04488D">Technical & Safety Department</span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"> </span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">EDF Energy Generation</span><span style="color:#1F497D">
<br>
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Sizewell B Power Station, Nr. Leiston, Suffolk, IP16 4UR</span><span style="color:#1F497D"><br>
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Tel - (+44) 01728 653750 Internal - 718 3750</span><span style="color:#1F497D"><br>
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:richard.parlone@edf-energy.com"><span style="color:blue">richard.parlone@edf-energy.com</span></a>
</span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><img border="0" width="90" height="40" style="width:.9375in;height:.4166in" id="Picture_x0020_3" src="cid:image001.png@01D87599.24F93EB0" alt="cid:image002.png@01D5C7C4.D807E090"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#1F497D"><a href="https://www.edfenergy.com/about"><span style="font-size:10.0pt;color:blue">edfenergy.com</span></a></span><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman",serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#11498D">Proud sponsors of Prostate Cancer UK</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"> </span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#11498D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="http://www.prostatecanceruk.org/"><span style="color:blue">prostatecanceruk.org</span></a><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Global <global-bounces@list.rpalara.org>
<b>On Behalf Of </b>kevin.licklider@dominionenergy.com<br>
<b>Sent:</b> 31 May 2022 17:05<br>
<b>To:</b> global@list.rpalara.org<br>
<b>Subject:</b> [Global] Question<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><strong><span lang="EN-US" style="font-size:9.0pt;font-family:"Helvetica",sans-serif;color:black">This Message originated outside your organisation.</span></strong><span lang="EN-US" style="font-size:9.0pt;font-family:"Helvetica",sans-serif;color:black"><o:p></o:p></span></p>
<div class="MsoNormal" align="center" style="text-align:center"><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman",serif">
<hr size="2" width="100%" align="center">
</span></div>
</div>
<p class="MsoNormal"><span lang="EN-US">Hello all,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Anyone use silflex shielding for their dry cask storage preferably in the annulus region? Snakes or wedges type shielding ? Tungsten or lead impregnated ?<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman",serif">CONFIDENTIALITY NOTICE: This electronic message contains information which may be legally confidential and or privileged and does not in any case represent
a firm ENERGY COMMODITY bid or offer relating thereto which binds the sender without an additional express written confirmation to that effect. The information is intended solely for the individual or entity named above and access by anyone else is unauthorized.
If you are not the intended recipient, any disclosure, copying, distribution, or use of the contents of this information is prohibited and may be unlawful. If you have received this electronic transmission in error, please reply immediately to the sender that
you have received the message in error, and delete it. Thank you.<o:p></o:p></span></p>
</div>
</div>
</div>
<br><br>
<p style="font-family:Arial;font-size:14px">
This e-mail, and any attachments, is confidential and for the use of the addressee only. If you are not the intended recipient, please telephone +44 (0) 1355 846000. We do not accept legal responsibility for this e-mail or any viruses. All e-mails sent and received by us are monitored. Contracts cannot be concluded with us by e-mail.<br>
<br>This message has been sent from EDF Energy Nuclear Generation Ltd , a company registered in England and Wales No. 03076445, with registered office at Barnett Way, Barnwood, Gloucester, GL4 3RS. </p></body></html>