[Clas12_calcom] [EXTERNAL] RG-K latest pass0 - please take a look

[silvia at jlab.org]

Dear Annalisa,
the CND looks pretty good to me. There are no QA bars, but I think all
relevant quantities are within specs. There is one little spike in the
timing at run 5768-9, that is still in specs but maybe could be adjusted,
if those runs are good, and a couple of outliers - not sure they are good
runs or not, you should please check and let me know.
For the rest, all seems very good to me.
Best regards,
Silvia


> Dear Annalisa,
>
> The new PCAL/ECIN/ECOU timing residual timelines (PCAL below) show run
> dependent excursions from zero at run points that correspond to beam
> energy change and other incidents of RF adjustments (I assume).  The
> excursions are on the order of 50-70 ps (similar to those seen in CND
> below), which is well below the average timing resolution for e- of
> 300-350 ps for PCAL  All other timelines are within reasonable QA limits.
>
> Cole
>
>
>
>
>
>
>
>> On Jul 18, 2023, at 2:45 PM, Annalisa D'Angelo
>> <annalisa.dangelo at roma2.infn.it> wrote:
>>
>> Dear CLAS12 detector subsystems Calibrators Group Leaders,
>> RG-K is at the end of the pass2 calibration procedure.
>>
>> You can find the latest RGK timelines at:
>>
>> https://clas12mon.jlab.org/rgk/pass0/v0.27/tlsummary/
>> <https://clas12mon.jlab.org/rgk/pass0/v0.27/tlsummary/>
>> https://clas12mon.jlab.org/rgk/pass0/v0.27_qa/tlsummary/
>> <https://clas12mon.jlab.org/rgk/pass0/v0.27_qa/tlsummary/>
>> Please take a look at the obtained timelines, to validate the quality of
>> the calibration.
>>
>> Should all of you be satisfied with the present results we could assess
>> the latest pass0 as the "final" one and proceed with the Pass2 cooking
>> review.
>>
>> Please reply to my message at your earliest convenience.
>>
>> For your info, the following table contains a description of the
>> different data taking conditions:
>>
>> Epoch
>> Beam Energy (GeV)
>> Run Range
>> Beam Current
>> nA
>> Trigger
>> Comment
>> L1
>> 7.546
>> 5674-5684
>> 10,20,30,45
>> V0
>> Trigger Test & Lumi Scan
>> L2
>> 7.546	5689-5693
>> 5,20,30,40,50
>> V2
>> Lumi Scan
>> P1
>> 7.546	5694-5753	35
>> V2
>> Production
>> P2
>> 7.546
>> 5758-5870
>> 45
>> V4
>> Production
>> L3
>> 7.546
>> 5768-5769
>> 5
>> V4
>> Low Luminosity
>> E1
>> 7.546
>> 5749
>> 150
>> V2
>> Empty Target
>>
>>
>>
>>
>>
>>
>> L4
>> 6.535
>> 5875-5885	7,10,35,75	V6
>> Trigger test&Lumi scan
>> P3
>> 6.535	5886-5972	60
>> V6
>> Production
>> P4
>> 6.535	5975-5985	35
>> V6-300MeV/200MeV	½ Lumi Production
>> L5
>> 6.535	5986-5990	5
>> V6-150MeV	Low Luminosity
>> L6
>> 6.535	5991-5994	10,35,60,75	V6-300MeV-random 30Hz	Lumi scan&random trg
>> E2
>> 6.535	5995
>> 150
>> V6-150MeV	Empty Target
>> T
>> 6.535	5996-6000
>> 35
>> V6-150MeV	½ Torus Field
>> 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
>> <mailto:email:annalisa.dangelo at roma2.infn.it>
>> Jefferson Laboratory, Newport News, VA USA
>> Email: annalisa at jlab.org <mailto:annalisa at jlab.org>
>> Tel: + 39 06 72594562
>
>