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Dear All,</div>
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See the ORNL SNS PPU Project weekly update. We're all looking forward to receiving the first production cavity at JLab.<br>
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Cheers,<br>
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<p style="margin-top: 0px; margin-bottom: 0px;margin-top:0; margin-bottom:0">Ed</p>
<p style="margin-top: 0px; margin-bottom: 0px;margin-top:0; margin-bottom:0">--------------------</p>
<p style="margin-top: 0px; margin-bottom: 0px;margin-top:0; margin-bottom:0">Edward Daly</p>
<p style="margin-top: 0px; margin-bottom: 0px;margin-top:0; margin-bottom:0">757-269-7721 (work)</p>
<p style="margin-top: 0px; margin-bottom: 0px;margin-top:0; margin-bottom:0">757-969-0783 (mobile)</p>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> Champion, Mark <championms@ornl.gov><br>
<b>Sent:</b> Friday, August 21, 2020 1:53 PM<br>
<b>To:</b> Galambos, John D. <galambosjd@ornl.gov>; PPU Staff <ppustaff@ornl.gov><br>
<b>Cc:</b> Langan, Paul <langanpa@ornl.gov>; Ed Daly <edaly@jlab.org><br>
<b>Subject:</b> [EXTERNAL] Weekly update</font>
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<span style="color:black">This week the project was notified by BES that the funding profile presented at the recent CD-2/3 Independent Project Review (IPR) is appropriate for the ESAAB meeting that is tentatively scheduled for October 6<sup>th</sup>. The
pre-ESAAB IPR recommendations have been addressed, and the project execution plan is undergoing final editing and review. The Independent Cost Estimate Review draft report is expected today.</span></p>
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<span style="color:black">The first superconducting RF cavity has been shipped this week from the vendor. Upon its arrival at Jefferson Lab, it will be prepared for acceptance testing in a vertical test stand, where the evacuated cavity will be cooled to 2K
in a liquid helium bath, and RF performance will be measured. Cavities 2-5 will be shipped in early September, and the balance of the cavities is expected by the end of the calendar year.</span></p>
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<span style="color:black">The new low-level RF (LLRF) control system was tested successfully on the SNS Linac cavity 23d this week. Closed-loop feedback control of the cavity accelerating voltage was demonstrated and compared well with the performance of the
existing operational LLRF system. This accomplishment is an important development milestone and supports the planned LLRF final design review in September.</span></p>
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<span style="color:black">A contract was initiated with a subject matter expert from Los Alamos to provide vendor oversight in Albuquerque for the production of the new high voltage modulators that will power the 28 RF stations that will be installed as PPU
scope.</span></p>
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<span style="color:black">The Target Test Facility completed a safety review in preparation for filling the mercury loop and flowing mercury through the new prototypical target next week.</span></p>
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<span style="font-size:11.0pt"> </span></p>
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<span style="font-size:11.0pt">Thanks to all,</span></p>
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<span style="font-size:11.0pt">Mark</span></p>
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<span style="font-size:10.0pt; color:black">Mark Champion</span><span style="font-size:11.0pt; color:black"></span></p>
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<span style="font-size:10.0pt; color:black">Project Manager, Proton Power Upgrade</span><span style="font-size:11.0pt; color:black"></span></p>
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<span style="font-size:10.0pt; color:black">Neutron Sciences Directorate, Oak Ridge National Laboratory</span><span style="font-size:11.0pt; color:black"></span></p>
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<span style="font-size:10.0pt; color:black">PO Box 2008, MS 6461, Oak Ridge, TN 37831</span><span style="font-size:11.0pt; color:black"></span></p>
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<span style="font-size:10.0pt; color:black">Mobile: 865-385-8478</span><span style="font-size:11.0pt; color:black"></span></p>
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