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I recommend BLA system calibration using 1st pass beam to Hall C, for comparison against delivered current at higher pass and energy. Would provide a more direct measurement of incremental pass-2 to pass-5 loss beyone pass-1 loss. We _believe_ at present
that pass-1 loss is small.</div>
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We ought also to know the duration of the planned run, in order to assess properly the setup trade-offs.<br>
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Michael Tiefenback<br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> BTeam <bteam-bounces@jlab.org> on behalf of Yves Roblin <roblin@jlab.org><br>
<b>Sent:</b> Tuesday, April 7, 2020 08:52<br>
<b>To:</b> bteam@jlab.org <bteam@jlab.org><br>
<b>Subject:</b> [BTeam] Bteam today.</font>
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<div dir="auto"><span style="font-family:sans-serif">We will have a bteam today. I would like to start fleshing out the strategy to restart the machine so that we can get started developing a gant like last time.</span></div>
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<div dir="auto"><span style="font-family:sans-serif"> Amongst things to ponder :</span></div>
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<div dir="auto">1) Restart as is, just check optics in injector and transverse optics in machine.</div>
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<div dir="auto">2) same as 1) but take time to characterize alternate arc1 optics </div>
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<div dir="auto">3) like 2) but decide to leave the new arc1 optics and rematch accordingly</div>
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<div dir="auto">Things we know we have to do :</div>
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<div dir="auto"> Transtition 4k to 2k</div>
<div dir="auto">Assess/recover RF</div>
<div dir="auto">Assess/tune injector </div>
<div dir="auto"> Check high current setup/loss in east arc ( maybe go to bsy dump at pass 3, loss is enough to be seen at lower current) .</div>
<div dir="auto">Recheck incoming arc opticdls</div>
<div dir="auto">Validate beam parity quality </div>
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<div dir="auto">Let's come to the meeting and make a list.</div>
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<div dir="auto" style="font-size:85%; color:#575757">Sent from my Verizon, Samsung Galaxy smartphone</div>
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