Minutes of E362 FD weekly meeting
97/05/16, 15:00-16:30, KEK meeting room
Present:C.MacGrew(SUNY),Y.Suzuki(ICRR),T.Ishii,Y.Ohyama,T.Ishida,T.Kobayashi,
S.Mine,T.Inagaki,A.Sakai,M.Sakuda(KEK),T.Maruyama(Tohoku),M.Nakamura(Niigata),
T.Kadowaki,T.Inada(SUT),M.Kohama(Kobe)

(1) Muon 
Ishii/Jeong/Li are testing the 3rd set. They need more man power. 

(2) SCIFI
 Sakuda reports;
*Spec documents for Fiber Production and for Aluminum mirroring are 
 being discussed with the help of Contract Division.
*Chemical polishing with CHCl3 vapor after the diamont cutter is reported
to improve the reflectivity (NIMA373,347). He is talking with ULVAC.
 Mine reports;
*Supporting rack of the cosmic-ray test will be made next week.
 It will use 5 layers of fiber ribbons.
*He designs the structure of the beam test. The size of the fiber sheet is
 40cm x 40cm.
*Echigo has a first version of the scifi clustering program.

(3) Horn
 Kohama considers an alternative design for the innner conductor of the 2nd
horn near the exit, hoping to increase the flux. 

(4) Beam monitor (Maruyama)
 Muon monitor a la Tanaka (15cmx15cm) will be tested at the Booster Facility 
on 5/20,27.
 Inagaki will measure the refractive index of the gas next week.
They ask Hamamatsu to change the gain of multi-anode PMT to measure the
large pulse-height.

(5) LG 
 Kobayashi trys to understand the xenon gain monitor and the geometry effect
of the cosmic-ray data. 
 Maruyama studies the LG response for 50MeV electrons using GEANT and check
the linearity.

(6) Offline 
 MacGrew and Ishida try to install the software management software CVS,
with which the update of the software becomes transparent and easy. 

(7) VETO
 Ohyama/Nakamura will test (1) LG HV power supply, (2) a cheep PMT and 
(3) a divider next week at Nikko.

(8) 1kton 
  Y.Suzuki explains the procedure of the installation of the tank. They build
the support frame for PMTs inside the tank at the GND level; move the tank
down to the experimental hall; install supermodules (2x2 PMTs) using a hoist.

(9) DAQ 
 Sakai reports that E362 and Online group discussed the first design of 
the network. FDDI from the computer center to the hub at Bulle Chamber Bldg.
From there the optical fiber cables (Ethernet) will be distributed to 
Fron Detector, Beam Monitor, Target station etc. Question about speed was 
raised. 
//(M.Sakuda)