Minutes of E362 FD weekly meeting
97/03/04, 19:00-21:00, KEK library meeting room,
Present:K.Nishikawa(Chairman),T.Ishii,A.Sakai,T.Inagaki(INS), 
K.Nakamura,M.Sakuda,Y.Ohyama,T.Ishida(KEK),T.Maruyama(Tohoku), S-H.Ahn(Korea)
E-M.Jeong(Chonnam),M.Kohama,T.Echigo(Kobe)

(1) Expeimental hall meeting (Nakamura,Satoh,Nishikawa)
A cylindrical hall is likely as compared to a square-shape hall. 
**Each group must tell Nishikawa by next week how many area are needed 
for the assembly space or electronics hut etc!!

(2) Beam monitor
Maruyama shows a new design of the pion monitor placed after the 2nd horn.
It is a gas (Isobutane) Cherenkov counter (L=1.2m). Photons are reflected by
a conical mirror and focused onto a face of multi-anode PMTs covering 
2cm x 10 cm area. One MA-PMT covers 2cm x 2cm area, which are seen by 16ch 
anodes (5mmx5mm). The detector covers about 4degrees in phi. He shows the
correlation between each anode signal and the angle/momentum of the pion.
Using this correlation he can predict the flux at FD with 9% accuracy and
the flux ratio SK/FD with accuracy of 5.4%. Once a month the detector will 
move into the beam-line, perform the measurement and move back 
since the radiation level is too high. 

(3) SCIFI
*Echigo shows that the luminescence plate can indeed fire the Al-coated fiber. 
 Calibration will be done this way.
*He now starts the measurement of the position dependence of IIT etc.
 He shows a preliminary result on the cluster size, 1sigma=0.5mm.
*Sakuda reports: Spec document for fibers is done; Washington group will 
 make a portable milling cutter; S-B.Kim will stay at KEK for Jun 1-Oct 1 ;
 we start discussing a spec document for aluminum coating for fibers.

(4) Muon (Ishii)
*Tension measurement of long chambers is progressing. So far 6 broken wires.
*Chikamatsu and Ishii will meet with Teisan Co and discuss the gas supply 
 and piping. 
 
(5) VETO (Ohyama)
*Ahn and Ohyama packed scintillators and PMTs. They will send them to Korea.
*Ohyama tests the TMC module. 

*DAQ meeting > March 6, 13:30
*JPS rehearsal is scheduled on March 18, 15:00-.
 Kohama, Maruyama, Etoh, Nakamura and Echigo will give a talk at JPS (3/28-31).
//(M.Sakuda)