<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class="">For work in the Hall, beam is not possible during the injector studies so you will have ~6 hours to access the hall. From around 10am tomorrow the hall should be accessible. If we are unable to get beam to the hall during the first two hours then we may be able to have access the hall then as well. </div><div class=""><br class=""></div><div class="">-Will<br class=""><div class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Mar 31, 2019, at 4:11 PM, William Phelps <<a href="mailto:wphelps@jlab.org" class="">wphelps@jlab.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hello Everyone,<div class=""><br class=""></div><div class=""><u class=""><b class="">I clarified with the PD about tomorrow’s beam studies:</b></u></div><div class="">-Beam to Hall D for 1-2 hours. —— This is where we could potentially get beam as well. Yves Roblin will be in early tomorrow to discuss bringing beam to Hall B.</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>-More will be known at the 7:45 meeting</div><div class="">-For the 6 hours following the beam to Hall D they will perform some injector setup for an upcoming experiment </div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>-They may also be able to recover some pumps for the north linac</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>-Hopefully the beam will be exactly the same as before beam studies</div><div class=""><br class=""></div><div class=""><u class=""><b class="">And about the RF recovery on Tuesday:</b></u></div><div class="">-They may need the full 8 hours for RF recovery</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>-NL21 has some problems with 7/8 tuners frozen (either mechanically or electronically)</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>-Last night’s issues may have involved the turbo pumps in NL21. Reset or replacement will be done during RF recovery.</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>-Other cryomodules have issues in the north linac that will be investigated</div><div class=""><br class=""></div><div class="">Stepan, do you think that we can use the (potential) beam in the morning to study the occupancy asymmetry?</div><div class=""><br class=""></div><div class="">-Will</div><div class=""><br class=""></div></div></div></blockquote></div><br class=""></div></div></body></html>