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Francois,
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<div class="">The calibration results depend somewhat on torus polarity for some of the subsystems in the Forward</div>
<div class="">Detector (ECAL, FTOF, DC, and potentially RICH). The effects for the most part are mild and arise due </div>
<div class="">to the different angular and momentum distribution of the particles used for the calibration, as well as on </div>
<div class="">the diffrence in path length resolution from the DC reconstruction (that gets worse as small angles - this</div>
<div class="">affects the outbending calibration using electrons).</div>
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<div class="">Regards,</div>
<div class="">Daniel</div>
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*                                                                                                          *<br class="">
* Dr. Daniel Carman              <a href="mailto:carman@jlab.org" class="">e-mail: carman@jlab.org</a>                      *                              <br class="">
* Staff Scientist                      office: (757)-269-5586                         *<br class="">
* Jefferson Laboratory           web: <a href="http://userweb.jlab.org/~carman" class="">http://userweb.jlab.org/~carman</a> *<br class="">
*                                                                                                         *<br class="">
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<div class="">On Apr 6, 2020, at 8:45 AM, Francois-Xavier Girod <<a href="mailto:fxgirod@jlab.org" class="">fxgirod@jlab.org</a>> wrote:</div>
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<div dir="ltr" class="">Sorry Dan one more question as I am reviewing the calibration timelines
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<div class="">Is it possible that some of these specifications depend on energy and/or torus polarity?</div>
<div class="">For instance RGK DC residual widths seem better than RGA, but I do not know if they could still be improved</div>
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<div dir="ltr" class="gmail_attr">On Mon, Apr 6, 2020 at 1:21 PM Daniel Carman <<a href="mailto:carman@jlab.org" class="">carman@jlab.org</a>> wrote:<br class="">
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<div style="overflow-wrap: break-word;" class="">Francois,
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<div class="">In my presentation at the RG-A pass-1 review, I presented details of the current calibration</div>
<div class="">quality for the RG-A 2018 inbending portion of the run. See</div>
<div class=""><a href="https://clas12-docdb.jlab.org/DocDB/0005/000569/002/rga-pass1-02282020.pdf" target="_blank" class="">https://clas12-docdb.jlab.org/DocDB/0005/000569/002/rga-pass1-02282020.pdf</a></div>
<div class="">I did not discuss stability or variance allowance vs. run number. That was more of a group</div>
<div class="">judgment call. In the future we will be more quantitative, but we were not in position to do</div>
<div class="">that for this pass-1 cooking.</div>
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<div class="">Regards,</div>
<div class="">Daniel</div>
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*                                                                                                          *<br class="">
* Dr. Daniel Carman              <a href="mailto:carman@jlab.org" target="_blank" class="">e-mail: carman@jlab.org</a>                      *                              <br class="">
* Staff Scientist                      office: (757)-269-5586                         *<br class="">
* Jefferson Laboratory           web: <a href="http://userweb.jlab.org/~carman" target="_blank" class="">http://userweb.jlab.org/~carman</a> *<br class="">
*                                                                                                         *<br class="">
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<div class="">On Apr 6, 2020, at 7:14 AM, Francois-Xavier Girod <<a href="mailto:fxgirod@jlab.org" target="_blank" class="">fxgirod@jlab.org</a>> wrote:</div>
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<div dir="auto" class="">Thanks a lot for the clarifications</div>
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<div dir="auto" class="">Is there a document specifying what is “good enough” then?</div>
<div dir="auto" class="">Otherwise we can just take the RGA achievements in their approved cooking range I guess</div>
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<div dir="auto" class="">It seems to me that RGK still has quite a bit of calibration work to do at the moment</div>
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<div dir="ltr" class="gmail_attr">On Mon, Apr 6, 2020 at 1:11 PM Daniel Carman <<a href="mailto:carman@jlab.org" target="_blank" class="">carman@jlab.org</a>> wrote:<br class="">
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<div style="overflow-wrap: break-word;" class="">Francois,
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<div class="">The RG-A fall 2018 run period that is being cooked is in the range from 5032 to 5419. The </div>
<div class="">run range from 4760 to 5031 will be investigated shortly. The calibrations were not finished</div>
<div class="">for this period because there were so many changes ongoing with regard to trigger, timing,</div>
<div class="">and voltage changes, that identifying only a few reference runs were not so simple. The plan</div>
<div class="">is to come back to this period after the outbending cooking gets underway.</div>
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<div class="">As for what defines “good enough” for the calibration of each subsystem, this was guided</div>
<div class="">overall by the system specifications convoluted with what could be achieved at the current</div>
<div class="">time given the state of calibrations, reconstructions, and alignments. The calibration timelines</div>
<div class="">before the start of the inbending cooking were reviewed by the subsystem folks and by the</div>
<div class="">RG-A folks in detail in the days leading up to the start of pass-1 cooking.</div>
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<div class="">For your specific questions on the DC, the calibration suite and calibration of reference run</div>
<div class="">was available only in the last few days before cooking began. The fluctuations in the residual </div>
<div class="">mean vs. run number are still being explored and a plan to reduce the variations is being </div>
<div class="">considered (e.g. correlating variations with atmospheric pressure). This is still a ways off in the </div>
<div class="">future, so we could not delay the start of pass-1 cooking for the first publication.</div>
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<div class="">Regards,</div>
<div class="">Daniel</div>
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*                                                                                                          *<br class="">
* Dr. Daniel Carman              <a href="mailto:carman@jlab.org" target="_blank" class="">e-mail: carman@jlab.org</a>                      *                              <br class="">
* Staff Scientist                      office: (757)-269-5586                         *<br class="">
* Jefferson Laboratory           web: <a href="http://userweb.jlab.org/~carman" target="_blank" class="">http://userweb.jlab.org/~carman</a> *<br class="">
*                                                                                                         *<br class="">
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<div class="">On Apr 6, 2020, at 7:02 AM, Francois-Xavier Girod <<a href="mailto:fxgirod@jlab.org" target="_blank" class="">fxgirod@jlab.org</a>> wrote:</div>
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<div dir="auto" class="">Dear Dan</div>
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<div dir="auto" class="">Thank you</div>
<div dir="auto" class=""><br class="">
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<div dir="auto" class="">Is there a subrange that was approved for cooking from this link, or was the full range from 4763 to 5655 approved? I see some fluctuations outside the range 4913 to 5540 for instance FD electron RF time. DC mean residuals also show
 fluctuations comparable to their sigma</div>
<div dir="auto" class=""><br class="">
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<div dir="auto" class="">Maybe I misunderstand what the calibration quality specifications are</div>
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<div dir="auto" class="">Best regards</div>
<div dir="auto" class="">FX</div>
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<div dir="ltr" class="gmail_attr">On Mon, Apr 6, 2020 at 12:18 PM Daniel Carman <<a href="mailto:carman@jlab.org" target="_blank" class="">carman@jlab.org</a>> wrote:<br class="">
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<div style="overflow-wrap: break-word;" class="">Francois,
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<div class="">The timelines are posted at: <a href="https://clas12mon.jlab.org/" target="_blank" class="">https://clas12mon.jlab.org</a></div>
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<div class="">If you select RG-A, the latest timeline for RG-A 2018 is 2.2.8 (done just this weekend for the </div>
<div class="">ongoing outbending studies), but the previous timelines in the list, 2.2.5a, were used as the </div>
<div class="">based of approval for the RG-A fall 2018 inbending cooking.</div>
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<div class="">Regards,</div>
<div class="">Daniel</div>
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*                                                                                                          *<br class="">
* Dr. Daniel Carman              <a href="mailto:carman@jlab.org" target="_blank" class="">e-mail: carman@jlab.org</a>                      *                              <br class="">
* Staff Scientist                      office: (757)-269-5586                         *<br class="">
* Jefferson Laboratory           web: <a href="http://userweb.jlab.org/~carman" target="_blank" class="">http://userweb.jlab.org/~carman</a> *<br class="">
*                                                                                                         *<br class="">
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<blockquote type="cite" class="">
<div class="">On Apr 6, 2020, at 6:13 AM, Francois-Xavier Girod <<a href="mailto:fxgirod@jlab.org" target="_blank" class="">fxgirod@jlab.org</a>> wrote:</div>
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<div dir="auto" class="">Dear Annalisa, all</div>
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<div dir="auto" class="">Do we have a link to RGA corresponding timeline that was approved for cooking? So we have a reference to judge fluctuations</div>
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<div dir="auto" class="">Thanks</div>
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<div dir="auto" class="">Best regards</div>
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<div dir="auto" class="">FX</div>
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<div dir="ltr" class="gmail_attr">On Mon, Apr 6, 2020 at 8:54 AM Annalisa D'Angelo <<a href="mailto:annalisa.dangelo@roma2.infn.it" target="_blank" class="">annalisa.dangelo@roma2.infn.it</a>> wrote:<br class="">
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Dear All,<br class="">
<br class="">
the RGK pass0 timelines are ready ad available at<br class="">
<br class="">
<a href="https://clas12mon.jlab.org/rgk/pass0/v2.2.2/tlsummary/" rel="noreferrer" target="_blank" class="">https://clas12mon.jlab.org/rgk/pass0/v2.2.2/tlsummary/</a><br class="">
<br class="">
please take a look at them to check for instabilities which may need <br class="">
calibration of additional runs.<br class="">
<br class="">
All the best<br class="">
<br class="">
Annalisa<br class="">
<br class="">
-- <br class="">
================================================<br class="">
Prof. Annalisa D'Angelo<br class="">
Dip. Fisica, Universita' di Roma "Tor Vergata"<br class="">
Istituto Nazionale di Fisica Nucleare<br class="">
Sezione di Roma Tor Vergata, Rome Italy<br class="">
<a href="mailto:email%3Aannalisa.dangelo@roma2.infn.it" target="_blank" class="">email:annalisa.dangelo@roma2.infn.it</a><br class="">
Jefferson Laboratory, Newport News, VA USA<br class="">
Email: <a href="mailto:annalisa@jlab.org" target="_blank" class="">annalisa@jlab.org</a><br class="">
Tel: + 39 06 72594562<br class="">
<br class="">
<br class="">
_______________________________________________<br class="">
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