[Halld-jlab] Notes on Hall D Staff Meeting, July 19, 2010

[Mark M. Ito]

Find the notes at 
http://www.jlab.org/Hall-D/software/wiki/index.php/Private:Hall_D_Staff_Meeting%2C_July_19%2C_2010 
and reproduced below.

Private:Hall D Staff Meeting, July 19, 2010

    Present: George Biallas, Eugene Chudakov (chair), Mark Ito, Lubomir
    Pentchev, Yi Qiang, Sascha Somov, Simon Taylor, Tim Whitlatch, Elliott
    Wolin, Glenn Young, Beni Zihlmann

Eugene

      * BIASOL fixed for this fiscal year, 420 k$ in total
           + taken from BIAGRP, BIAOLC during last go-around
           + this round: taken from BIAOLC, electronics, other bia projects
      * most likely that FY11 will be under a continuing resolution for 6
        months
      * 12 GeV project is immune
           + DOPS and BIA subject to restrictions: FY10 budget - 10%
      * Lab thinking about a general strategy for budget for 12 GeV
        operations
           + various scenarios for operations
           + Larry: increase by 1/3 (one hall)
           + what if flat?
                o run three halls, fourth hall fallow or mothballed
                o physics staff dedicated to a hall
                o tech and support staff held at current level and shared
                  among three running halls
                o less efficient, even for three halls running at once
                o perhaps fewer weeks of running
      * BIACAL finished this year


Mark

      * computing model, spreadsheet using CLAS model
      * iteration on calibration database with David
      * some activity on UMass and FSU MOU's with Elton
      * round claiming of progress for BIAOLC


Yi

      * SiPM lifetime due to radiation damage
           + Pavel Degtiarenko: with 1/3 efficiency, 7 to 10 years for a
             factor of 10 in noise
           + Pavel's simulation of Hall A: factor 2.5 higher than dose
             measured
           + looking at damage with a calibrated source
                o 32 rem, increase of 3.5 with source
                o compare with 35 rem in Hall A giving a factor of 10 in
                  damage
           + 1x1 SiPM has an anomaly: much higher damage than 3x3
      * continuing on HMI work for solenoid test


David

      * field uniformity studies with Simon, document about to be uploaded
        to DocDB
           + not a lot of gain so far
           + perhaps even gains for non-uniform field
           + field configurations so far limited to those with the current
             yoke
      * calibration condition database specification
           + try to have it done before Dmitry gets here
      * 48-core machine not available last week
           + funny behavior: sometimes slow, sometimes fast
      * workshop on parallelization: first draft of all documents done
      * working with students: ROOTSpy, event viewer, Micah's thesis
        project
      * looking at understanding implications of multiple events in one
        trigger


Simon

      * fast helical fitter using drift time information constructed
           + constant field, different field configurations tried
           + runs 4 times faster, systematic errors due to non-constant
             field
      * working on Kalman fitter, SIMD issue
           + certain versions of gcc, OS's: does not work
           + for now disabled


Lubomir

      * working with Fastrack estimating when parts are needed
           + assume new clean room in October
           + need about 2.5 weeks to make one layer prototype
           + assumes 8 people full time
           + start mass production in November
      * procurements proceeding
      * wire winding progress: UVa has position measurements working, work
        on tension measurements
      * response from IUCF on strong-backs
           + they are ready to ship
           + here in several weeks
      * will attend conference: applications of accelerators in research
        and industry


Elliott

      * dana-evio work with new jana
           + application to event display
           + will add objects to event display
      * magnet test:
           + today is moving day, racks to test lab
                o locations have been identified
                o racks mostly done, a few parts coming in
           + power supply, new flow switches, dump resister replaced for
             one coil
           + OSP: try for final documents end of month
           + PLC programming almost done
           + arranging connection to guard shack, from test set-up
           + polarity needs to be chosen


George

      * Elton and Eugene working on response to turn-to-turn concern of
        reviewer
      * path for designing a new magnet:
           + going to DOE on the 26th with a proposal
           + Claus, Allison
      * coil 1 complete and ready for test
      * IUCO reports leak-tight shield[?] on coil 3
      * coil 2 waiting for tooling for support of coils


Tim

      * ES&H item: putting rack together in F117, requirement that things
        are not plugged in violated a few weeks ago
           + will use administrative lock from now on
      * design review on tagger magnet: sascha put together requirements
           + 1010 vs. 1006[?] steel, vacuum annealing need
      * CDC parts to be modified to adjust tolerances
      * still waiting on straws for cdc


Beni

      * continuing work on CDC, 6 to 8 week delay with modification of
        donuts and feedthroughs
           + will also delay review
      * FDC cosmic test stand data
           + see same effects as Lumomir with his flash, see similar
             evidence for oxygen contamination
           + moving to bottom layer, 3rd, of prototype: do a test run to
             check it out.
           + looks like wire resolution is within specs, about 200 microns
           + strip resolution getting: 600 microns, without gain
             calibration
      * discussion at pid meeting about doing walk corrections on tof with
        data: started to look at this


Sascha

      * prepared stuff for trigger workshop
      * prepared sguff for tagger mini-review
      * working on simulation of level 1 trigger with low-level digital
        data
      * diamond sent to UConn is still alive
           + one guy working on mounting; using carbon fiber
           + diamond dimentions: 4.5 x 4.5 mm x 10 microns
           + CHESS run not yet planned

    Retrieved from
    
"http://www.jlab.org/Hall-D/software/wiki/index.php/Private:Hall_D_Staff_Meeting%2C_July_19%2C_2010"