[Clas12_calcom] Engineering Run Part #2

[Daniel Carman]

Folks,

Work is getting underway to revisit the CLAS12 Commissioning Plan to review what
steps have been fully (or sufficiently) completed, what steps were partially completed, 
and what steps are still left to begin. I would like to update the Commissioning Plan to 
lay out a roadmap for the remainder of our commissioning beam time for the second 
half of the Engineering Run nominally scheduled for Jan. 12-30, 2018.

We have been maintaining a spreadsheet of the run list from the December portion
of the Engineering Run at:
https://docs.google.com/spreadsheets/d/1frfBlq51qDXZD6fW5rcRefNXSGdVvdMozKUlAVNoUGc/edit?usp=sharing <https://docs.google.com/spreadsheets/d/1frfBlq51qDXZD6fW5rcRefNXSGdVvdMozKUlAVNoUGc/edit?usp=sharing>
This list details the conditions under which the data was taken. In order to proceed to 
develop a complete plan for the remainder of our commissioning period, I would like 
all subsystem teams to communicate what conditions remain to be studied that have 
not yet been addressed to complete the data taking necessary to fully characterize their
subsystems. Please send me complete details this week. 

Note that we still have yet to take data for 
1) the FT due to the hardware issues with the system (that are currently being worked on)
2) the alignment of the Forward Detectors and Central Detectors at zero field

We have already completed a sizable fraction of the Phase 1 beamline commissioning
plan and the Phase 2 CLAS12 commissioning plan as detailed in the existing Commissioning
Plan (these plans are detailed under the “Procedures” column at:
https://wiki.jlab.org/clas12-run/index.php/Engineering_Run <https://wiki.jlab.org/clas12-run/index.php/Engineering_Run>)

It is important for the subsystem teams to look in detail at their subsystems through the
December data to understand their performance in beam. If you have questions related to
the offline cooking or need special data skims, please contact Francois. Preliminary data
investigations and calibrations should be completed with constants entered into the ccdb 
during the course of this week. All subsystem teams should have representation at the daily 
10 a.m. analysis meetings to give reports and to provide feedback on their detectors. These
meetings are also important for all of us to understand the priorities for completing our
planned commissioning studies in January.

If you have any questions, please let me know.

Regards,
Daniel

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*                                                                                                                  *
* Dr. Daniel S. Carman                  e-mail : carman at jlab.org                     *  
* Staff Scientist                              office : (757)-269-5586                         *
* Jefferson Laboratory                   web: http://userweb.jlab.org/~carman  *  
*                                                                                                                  *
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