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<div>Start cooling the target around noon today. Switched to warm return at 14:40. No change in gas purity monitor CCT60N23. </div>
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<div>Chris</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Esr-users <esr-users-bounces@jlab.org> on behalf of Christopher Keith <ckeith@jlab.org><br>
<b>Sent:</b> Saturday, June 4, 2022 6:40 PM<br>
<b>To:</b> esr-users@jlab.org <esr-users@jlab.org><br>
<b>Subject:</b> [Esr-users] Cooling Hall B polarized target</font>
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If all goes according to plan, I will start cooling the Hall B polarized target to 1 K tomorrow morning, June 5. I'll post follow-up messages before I start and when it's complete. </div>
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I'll be drawing a maximum of about 0.3 g/s of 4K LHe from the Hall B buffer dewar, and I'll closely monitor the ESR contamination signal CCT60N23.</div>
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Chris Keith</div>
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