Minutes of the ST-Testbeam Run-Meeting - July 4, 2004
=====================================================

General
-------

 - no shifts between Monday 8:00 and Tuesday 8:00

 - new run coordinator now is Johan

 - next run meeting on Monday, July 5, 15:00


Actions since yesterday
-----------------------

 - low SPS performance during the afternoon, with
   single rates below 100 particles per spill as given
   on the SPS screen in the conrolroom. Recovery to
   up to 10^5 particles per spill in the evening

 - beam adjustment has been finished by the afternoon
   shift

 - PC for Beetle programming was restarted in the night
   programming of the chips, documented in the logbook,
   was unchanged

 - the main measurement program has been started

   Vfs = 400

           CMS  CMSflex LHCb1  Irrad

   HV  =   350   270    110     300
           302   220     82     270
           250   170     50     240
           220   140     20     210
           190   110     10     180

   latency scans are performed

        from 84 ns to 126 ns in steps of 6 ns

   as set on the delay box

 - simplified schemes now exist for data taking
   and primary reconstruction (dmon). A single command
   is provided which starts a run and allows to specify
   number of events to be taken and the Helix latency.
   The latter is relevant when doing a full pulseshape
   scan. For details refer to the documentation.

 - a list of phone numbers has been put up in the
   controlroom


Task List
---------

 - bring/keep documentation up to date

 - log all actions in the *** logbook *** and/or
   in the *** spreadsheet ***

   don't forget to document
     - beam conditions
     - voltages
     - currents
     - temperatures

   These parameters should be logged once per hour,
   NOT only once per HV point!

 - process the data and file the control plots

   Note that most of the processing goes into the
   second step, which produces the root files for the
   final analysis.


 - continue the main measurement program

   In view of the rather unstable beam conditions it
   was decided to do the HV scan in larger steps and
   do intermediate points later. The procedure should
   be essentially to go in factors of 2 down, until
   the S/N is gone and then go up as high as possible
   in steps of 100 V before filling intermediate
   points. The whole procedure should be monitored
   by the analysis and adjusted as necessary.


 minutes by Michael Schmelling