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FYI<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Wu, Qiong <qiowu@bnl.gov><br>
<b>Sent:</b> Monday, September 19, 2022 3:25 PM<br>
<b>To:</b> eicpp_admin@jlab.org <eicpp_admin@jlab.org><br>
<b>Cc:</b> Todd Satogata <satogata@jlab.org><br>
<b>Subject:</b> [EXTERNAL] TCCB announcement</font>
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<p class="x_MsoNormal">Hi!</p>
<p class="x_MsoNormal"> </p>
<p class="x_MsoNormal">This is Qiong Wu for the EIC Technical Change Control Board. We have recently completed the process of a new baseline change and approved by Ferdinand. Todd suggested I should contact you for EIC baseline announcements. The notice is
as of below, and please distribute. You can email me or Todd for further questions.</p>
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<p class="x_xmsonormal"><i><u><span style="font-family:"Cambria",serif">S<span style="color:black">ent on Behalf of Ferdinand Willeke</span></span></u></i><span style="font-family:"Book Antiqua",serif"></span></p>
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<p class="x_xmsonormal">~~~~~~~~~~~~~~~~~~~~~~~~~</p>
<p class="x_xmsonormal">Dear EIC team members,</p>
<p class="x_xmsonormal"> </p>
<p class="x_xmsonormal">At this stage, the Conceptual Design Report (CDR) should be used as the baseline for the EIC technical design in all aspects. As the project evolves, major technical improvements/changes, after a designated procedure, shall re-establish
the baseline locally or affecting a broad range.</p>
<p class="x_xmsonormal"> </p>
<p class="x_xmsonormal">After formal reviews and collection of comments from the Technical Change Control Board, I have approved the following changes to be implemented into the EIC technical design baseline:</p>
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<li class="x_xmsonormal" style="color:black"><span class="x_normaltextrun">Change the RCS quadrupole, dipole, and sextupole magnets from water cooled to air cooled.</span></li><li class="x_xmsonormal" style=""><span class="x_normaltextrun"><span style="color:black">Change the coil parameters on the ESR “super bend” dipoles from a single turn coil to a multiturn coil.</span></span></li></ol>
<p class="x_xmsonormal"> </p>
<p class="x_xmsonormal">One requested change has deferred until further work is done:</p>
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<li class="x_xmsonormal" style="">Change the clear vertical aperture of the ESR “super bend” dipoles from 52mm to 47mm.</li></ol>
<p class="x_xmsonormal"> </p>
<p class="x_xmsonormal">SharePoint Link: </p>
<p class="x_xmsonormal" style="text-indent:.5in"><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__brookhavenlab.sharepoint.com_sites_eRHIC_dcc_Approved_Forms_AllItems.aspx-3Fid-3D-252Fsites-252FeRHIC-252Fdcc-252FApproved-252FA00014-255FESR-252BRCSMagnets-26viewid-3Daa4e3da3-252De007-252D4f93-252Db7d8-252D18bfd92c2203&d=DwMFAg&c=CJqEzB1piLOyyvZjb8YUQw&r=WKf3zcaxWc4onHmmCdeiDj-sxHLYg9y2hXItBws3n4E&m=Cqs02gRLYagiDAtL8BDmODB5kE_t8CbH7u6PVCKJ54H3VpF9K0_wHxyZngd31NtF&s=X0Zxt189fQnTLo4EkalloZDoohq53cpQCZ48XoVM4hE&e="><span class="x_MsoSmartlink">https://brookhavenlab.sharepoint.com/sites/eRHIC/dcc/Approved/Forms/AllItems.aspx?id=%2Fsites%2FeRHIC%2Fdcc%2FApproved%2FA00014%5FESR%2BRCSMagnets&viewid=aa4e3da3%2De007%2D4f93%2Db7d8%2D18bfd92c2203</span></a></p>
<p class="x_xmsonormal" style="text-indent:.5in"> </p>
<p class="x_xmsonormal">The SharePoint links above provide a complete list of materials regarding the changes, and please refer to the change request form for all the details. All studies related to the approved changes should apply the new parameters from
now on.</p>
<p class="x_xmsonormal"> </p>
<p class="x_xmsonormal">~~~~~~~~~~~~~~~~~~~~~~~~~~~~</p>
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<p class="x_MsoNormal">Thank you,<br>
Qiong</p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Century Gothic",sans-serif">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></p>
<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Century Gothic",sans-serif">Qiong Wu, PhD</span></p>
<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Century Gothic",sans-serif">Physicist</span></p>
<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Century Gothic",sans-serif">Electron Ion Collider</span></p>
<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Century Gothic",sans-serif">Brookhaven National Laboratory</span></p>
<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Century Gothic",sans-serif">Phone: +1-631-344-5825</span></p>
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