To:     FNAL::HJS,FNAL::MATESKI,FNAL::DFM,RPSMITH
CC:     HEFISK,christenson,mont,weerts,@me:icd_up,dean
  
Dear All,

RE:  ICD Iron / solenoid test - meeting 6-may-1998.

These minutes will ultimately be posted from the ICD home page      
    http://www-d0.fnal.gov/hardware/upgrade/icd/icd.html
go to the meeting notes page - the 6-may-98 meeting.
Please send corrections/comments to Elizabeth.

I failed to invite a muon system representative, but now realize that
such a person should be identified.  Please tell me who this should be.

thanks,
Elizabeth
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          Minutes of the ICD ICD Iron-Solenoid Test Meeting
                    Wednesday 6-MAY-1998  8:15 am
                 Send corrections to Elizabeth Gallas
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In attendance:  
Del Miller, Jack Mateski, Rich P. Smith, Herm Stredde, Eizabeth Gallas.

THERE ARE 2 ISSUES:  
    1.  how many of the ICD iron shielding  blocks do we want to install
        for the solenoid test ?
    2.  ICD group wants to instrument part of one block with LED
        calibration and readout - which is best?

ICD is the only group that has shown interest in the solenoid test.
If there are other interested groups, they should contact Rich Smith.

BLOCK DETAILS:
The four Run II ICD iron shielding blocks have been machined
and painted and are now in Texas.
A single block weighs nearly 300 pounds.  It's dimensions are roughly 
31"(z) x 3.5"(x) x 11"(y) and has 96 cylindrical holes drilled through
the 3.5" depth (x) to accommodate 96 PMT's.
Two support bolt holes have been drilled in each of the z faces as
specified by agreement between Jack Mateski and Jia Li.
DXF file can be obtained from  http://www-hep.uta.edu/~lijia/ .
These holes are intended to be used to hand the block assembly 
from the underside of the pig troughs using L shaped support brackets.

PMT CRATES:
The iron blocks are the central component in the ICD PMT crates: the 'fiber
backplane' is attached to the backside, and the electronics drawers
slide into NIM-like slots in the front.  In the real detector, the iron
block, fiber backplane and crate rack will be installed as a single unit
(electronics drawers with pmts sliding into the rack afterward).

SCHEDULE/CONFIGURATION:
The solenoid test is scheduled for July/August 1998, but it sounds like
it may spill into september.  
Central muon system iron must be in place, whether or not the muon
system is ready to close.  Muon folks should be involved in this
discussion.
For the test, the  north cryostat will remain 39" from its closed
position with north iron behind it.  
The south cryostat is on the sidewalk and will NOT be returned to
the platform for the test.

REQUESTS:
The solenoid group requests that all 4 iron blocks be installed in their
correct position relative to the solenoid for the test in order to get
the best field/force measurements.
This means that temporary supports must be built to support the ICD iron
blocks and hold them in position for the test (withstanding additional
magnetic forces).

ICD INSTALLATION PLANS FOR SOLENOID TEST:
Since all blocks are requested, 3 bare blocks will be installed in 3
locations.  In the 4th location, the final iron block will be partially
instrumented with a limited channel fiber backplane with LED calibration
signal and one or two drawers of readout electronics.
Del suggests that the best location for the instrumented block may be
the NW quadrant since the control room is closest.

Comments are welcome on any aspect of this venture.