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<p class="MsoNormal"><span style="font-size:14.0pt">Hi All,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">We had a problem with SVT this morning. By some unknown for a moment reason the SVT chiller<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">was switched off by interlock. Yura is investigating the reason that triggered this event. It took 1.5 hour to
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">cool the detector and return back to the normal conditions.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">We started to take random trigger run with 10 nA beam current @10:15 using Faraday cup as a trigger.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">The beam blocker was removed from the beam line to increase the Faraday cup trigger rate at low current.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">The trigger rate is 8 kHz. We will stay with this current 2 hours. Then we will take short 20 minutes run with 50 nA.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">We discussed the detailed run plan (see rg-b wiki) yesterday during RC meeting.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">By this reason the RC meeting is cancelled today.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">After special runs we will return back to the production run with 50 nA beam current until Wednesday morning.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">After one shift RF recovery and laser beam spot move we will take Moller run and continue production data taking after that.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">Valery<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">Hall-B RC<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
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