[clas12_rgk] [EXTERNAL] rgk timelines
Francois-Xavier Girod
fxgirod at jlab.org
Mon Apr 6 07:14:49 EDT 2020
Thanks a lot for the clarifications
Is there a document specifying what is “good enough” then?
Otherwise we can just take the RGA achievements in their approved cooking
range I guess
It seems to me that RGK still has quite a bit of calibration work to do at
the moment
On Mon, Apr 6, 2020 at 1:11 PM Daniel Carman <carman at jlab.org> wrote:
> Francois,
>
> The RG-A fall 2018 run period that is being cooked is in the range from
> 5032 to 5419. The
> run range from 4760 to 5031 will be investigated shortly. The calibrations
> were not finished
> for this period because there were so many changes ongoing with regard to
> trigger, timing,
> and voltage changes, that identifying only a few reference runs were not
> so simple. The plan
> is to come back to this period after the outbending cooking gets underway.
>
> As for what defines “good enough” for the calibration of each subsystem,
> this was guided
> overall by the system specifications convoluted with what could be
> achieved at the current
> time given the state of calibrations, reconstructions, and alignments. The
> calibration timelines
> before the start of the inbending cooking were reviewed by the subsystem
> folks and by the
> RG-A folks in detail in the days leading up to the start of pass-1 cooking.
>
> For your specific questions on the DC, the calibration suite and
> calibration of reference run
> was available only in the last few days before cooking began. The
> fluctuations in the residual
> mean vs. run number are still being explored and a plan to reduce the
> variations is being
> considered (e.g. correlating variations with atmospheric pressure). This
> is still a ways off in the
> future, so we could not delay the start of pass-1 cooking for the first
> publication.
>
> Regards,
> Daniel
>
>
> *****************************************************************************
> *
> *
> * Dr. Daniel Carman e-mail: carman at jlab.org <carman at jlab.org>
> *
> * Staff Scientist office: (757)-269-5586
> *
> * Jefferson Laboratory web: http://userweb.jlab.org/~carman *
> *
> *
>
> *****************************************************************************
>
>
>
> On Apr 6, 2020, at 7:02 AM, Francois-Xavier Girod <fxgirod at jlab.org>
> wrote:
>
> Dear Dan
>
> Thank you
>
> 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
>
> Maybe I misunderstand what the calibration quality specifications are
>
> Best regards
> FX
>
> On Mon, Apr 6, 2020 at 12:18 PM Daniel Carman <carman at jlab.org> wrote:
>
>> Francois,
>>
>> The timelines are posted at: https://clas12mon.jlab.org
>>
>> If you select RG-A, the latest timeline for RG-A 2018 is 2.2.8 (done just
>> this weekend for the
>> ongoing outbending studies), but the previous timelines in the list,
>> 2.2.5a, were used as the
>> based of approval for the RG-A fall 2018 inbending cooking.
>>
>> Regards,
>> Daniel
>>
>>
>> *****************************************************************************
>> *
>> *
>> * Dr. Daniel Carman e-mail: carman at jlab.org
>> <carman at jlab.org> *
>> * Staff Scientist office: (757)-269-5586
>> *
>> * Jefferson Laboratory web: http://userweb.jlab.org/~carman *
>> *
>> *
>>
>> *****************************************************************************
>>
>>
>>
>> On Apr 6, 2020, at 6:13 AM, Francois-Xavier Girod <fxgirod at jlab.org>
>> wrote:
>>
>> Dear Annalisa, all
>>
>> Do we have a link to RGA corresponding timeline that was approved for
>> cooking? So we have a reference to judge fluctuations
>>
>> Thanks
>>
>> Best regards
>> FX
>>
>> On Mon, Apr 6, 2020 at 8:54 AM Annalisa D'Angelo <
>> annalisa.dangelo at roma2.infn.it> wrote:
>>
>>> Dear All,
>>>
>>> the RGK pass0 timelines are ready ad available at
>>>
>>> https://clas12mon.jlab.org/rgk/pass0/v2.2.2/tlsummary/
>>>
>>> please take a look at them to check for instabilities which may need
>>> calibration of additional runs.
>>>
>>> All the best
>>>
>>> Annalisa
>>>
>>> --
>>> ================================================
>>> Prof. Annalisa D'Angelo
>>> Dip. Fisica, Universita' di Roma "Tor Vergata"
>>> Istituto Nazionale di Fisica Nucleare
>>> Sezione di Roma Tor Vergata, Rome Italy
>>> email:annalisa.dangelo at roma2.infn.it
>>> Jefferson Laboratory, Newport News, VA USA
>>> Email: annalisa at jlab.org
>>> Tel: + 39 06 72594562
>>>
>>>
>>> _______________________________________________
>>> clas12_rgk mailing list
>>> clas12_rgk at jlab.org
>>> https://mailman.jlab.org/mailman/listinfo/clas12_rgk
>>>
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>
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