Minutes of the E895 meeting
	    Graduate Chemistry Rm 403, SUNY Stony Brook
                      Wednesday 7/5/95

Attending:  Gulshan Rai (GR),  Bob McGrath (RM),  Roy Lacey (RL),
            Mark Gilkes (MG),  N. Ajitanand (AJ),  Paul Chung (PC),
            Eric Colin (EC), Jerome Lauret (JL), Erwan LeBras (EL),
            Tatiana Magda (TM), Meena Srivastava (MS), and two new
            summer students, Jacques and Greg.

Gulshan Rai described the E895 schedule for the next few weeks:

The E895 running schedule has slipped by a couple of weeks.  It now begins on
December 12th and continues for four weeks into mid-January.

The TPC clean room construction is now underway.  The riggers will be in at the
end of next week to move the TPC into the clean room.  The week after that, six
people will be needed to open the detector so that the interior can be checked
and the cathode replaced.

The floor in the MPS control room was replaced last week.  Next week the TPC
electronics racks will be moved into a permanent location inside the control
room. GR and MG unpacked the computers last weekend and tried to boot them.
The original DAQ disk failed to power up, and the contents of the backup tape 
will have to be dumped onto a new disk GR has located.

The TPC fiber optics will be transported from BNL to Stony Brook next week,
where they will be individually tested and catalogued at the NSL.

The hydrogen target will be removed from the MPS magnet by July 17th, which is
then the earliest date for field mapping.  The MPS needs to be powered up for
field measurements during the latter part of July, as Tom Case has arranged to
be at BNL at that time with the field mapping apparatus he has been working
on.  The magnet control therefore needs to move into the MPS control room by
then.  In August the magnet is expected to be down for repairs of a cooling
manifold.

First order simulations for the TPC orientation in the magnet need to be made
as early as possible so that the placement of the supports can be finalised.
One important question is whether the TPC should be rotated about the target
position.

Other news:

Carnegie-Mellon has offered their services for data processing.  They have a
farm of Alpha workstations.  They have volunteered to take over the TPC gain
calibration and drift velocity determination (i.e. pass0) and Howard Matis'
online trigger program.

U.C. Davis will be able to supply MUSIC II experts to work on the detector,
starting in late July.

Jerome Lauret will maintain the E895 collaboration list.

Mark Tincknell will take responsibility for the event server, which he wrote
in collaboration with Doug Olson, Jo Schambach and Chuck McParland.

Mark Gilkes will take responsibility for the run control program and the
Informix database, and the online versions of TAS/EOSGX, with help from Stony
Brook students.

Laser safety reviews will delay the permission to operate the device - this
needs to be taken care of as quickly as possible.  Erwan and Jacques will
need to take the safety course.

GR - The TPC thermocouples were ripped out when the detector was shipped,
     and they need to be replaced.  This is another small project to be
     kept in mind.

MG - The target assembly project is in a hold mode.  We haven't yet determined
     whether there is a common design appropriate for E895/E910.

GR - We can still proceed with a default design for E895 in the meantime.
     Let's discuss this default design at next week's meeting.  We need to
     be sure to feed back our ST PMT voltage requirements to Declan, as
     they are working on the high voltage control at Kent State.

GR - Weekly meetings will be held regularly at Stony Brook.  The agenda will
     be dominated by E895 issues, naturally, but there will also be discussion
     of EOS physics, as opportunity allows.  We may need a conferencing setup
     to allow the LBL collaborators working on the beamline to join in.

GR - Let's try to hold the next meeting earlier in the week.

A time of 4:00 pm on Mondays was agreed upon, in Graduate Chemistry, probably
in room 412.


Prepared by: Mark Gilkes