[Eg6_analysis] [Lowq] DC Calibrations Update

Wed Sep 8 14:57:44 EDT 2010

Hi Seema,

I have just comment on the run ranges for your DC calibration constants. It
is better to use
the same partition that I used for the TOF calibration which is:

1. *5.7 GeV : 61107: 60600 - 61215*
2. *1.2 GeV : 61440: 61216 - 61482*
3. *5.7 GeV : 61483 - 61500*: did you check any run of this range before and
after applying
the new calibration constants of a 61107?
4. 6 GeV  : I noticed that you are not using the calibration constants of
the six 6 GeV runs.
You have reduced them to just two run ranges instead of six, is there any
reason for that?
    i.   *61535: 61501 - 61600     *!  I used this run instead of 61540
strategic run! It seems that
                                                you have dropped this run
from your list
    ii.  *61625 : 61601 - 61682*
    iii. *61695 : 61683 - 61700 *
    iv. *61731 : 61701 - 61777*
    v. *61778: 61778 - 61782*
5. 1.2 GeV: *61790: 61783 - 61790*
6. 6 GeV:
    vi. *61819: 61791 - 61850*
    vii. *61860: 61851 - 61930*
7. 1.2 GeV: *61935: 61931 - 62000*

Best regards,

Lamiaa

************************************************************
*  Lamiaa El Fassi             email: elfassi at jlab.org
*  Research Associate @ Rutgers University
*  Phone: (757) 269-7011 // Fax: (757) 269-5703
*  Jefferson Lab., 12000 Jefferson Ave.
*  Suite# 4, MS 12H3
*  Newport News, VA. 23606
************************************************************

On Wed, Sep 8, 2010 at 12:57 PM, <seema at jlab.org> wrote:

> Hello Stepan,
> Sorry for my delayed response! I have compiled the results of DC
> calibration. Please have a look at the attached file DC_calib.pdf
> Although we see many numbers red for superlayer 5 and 6 but we can't get
> rid of these. Moreover these numbers are not too far off from the cut off
> value say 310 microns for narrow sigmas in the code. So I think we can use
> these constants for pass0 cooking. I made a list of the runs for different
> energies:
> (i) 60707 - 61210 (Ebeam = 5776 MeV)
> Constants of run number 61107 which is very well calibrated will be
> applied to this run range.
> (ii) 61217 - 61481 (Ebeam = 1206 MeV)
> Constants of run number 61440 to be copied.
> (iii) 61483 - 61496 (Ebeam = 5776 MeV)
> Constants of run number 61107 to be copied.
> (iv) 61507 - 61782 (Ebeam = 6064MeV)
> Constants of run number 61778 to be copied.
> (v) 61787 - 61790 (Ebeam = 1269 MeV)
> Constants of run number 61935 to be copied.
> (vi)61791 - 61930 (Ebaem = 6064 MeV)
> Constants of run number 61860 to be copied.
> (vii) 61931-61972 (Ebeam = 1269 MeV)
> Constants of run number 61935 to be copied.
> If it's okay with you, I can go ahead and write these constants to the
> appropriate run ranges.
> Waiting for your reply,
> Best regards,
> Seema
>
>
>
>
>
> >   Hi Seema,
> >
> > Thanks for the files. I only had a chance to look them
> > There seem too many red numbers. Do you think they
> > can be improved.
> > As you know we want to start the next pass0. Can you
> > have the best calibration constants for DC in the database
> > for cooking.
> >
> > Regards, Stepan
> >
> > On 9/4/10 3:29 PM, seema at jlab.org wrote:
> >> Hello Stepan,
> >> Hope that you are having a good weekend :-)
> >> I have recalibrated all the nine runs twice during the last two days.
> >> The
> >> summary sheets are in the directories
> >> /work/clas/disk1/seema/dc_calib_test/third_iteration_eps and
> >> /work/clas/disk1/seema/dc_calib_test/fourth_iteration_eps. Unfortunately
> >> I
> >> am not able to send you these results in a pdf file due to my limited
> >> access to the internet because I have just moved into Bloomington! But I
> >> can generate pdf file on Tuesday morning if I don't get access to
> >> internet
> >> over the weekend! Sorry about that!
> >> Best regards,
> >> Seema
> >>
> >>
> >>> Hi Seema,
> >>>
> >>> Thanks for the update.
> >>> Looking forward for the results of next iteration.
> >>>
> >>> Regards, Stepan
> >>>
> >>> seema at jlab.org wrote:
> >>>> Hello Stepan,
> >>>> Sorry for not being in touch with you for the last few days because I
> >>>> was
> >>>> just wrapping up my stuff to come back to US! Also my account was
> >>>> again
> >>>> locked but I have got access to it now. Regarding DC calibrations I
> >>>> would
> >>>> finish the last iteration in the next couple of days and would send
> >>>> you
> >>>> an
> >>>> email with the latest results. Please let me know if you need any
> >>>> other
> >>>> info and I shall be obliged to hear from you!
> >>>> Best regards,
> >>>> Seema
> >>>>
> >
>
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