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[flemming videbaek <videbaek AT bnl.gov>]

I like to follow up briefly on the possible disk position. I already posted 
comments several days ago. Just to iterate a couple of points

- the nominal geometry in simulation and due to coverage is 140 154 168 
(rougly 15 cm between disks)
  The 140 corresponds to 55.1” much less than Rahu nominal 60.8”. I a 
response to my comments he said the 60” is a reasonable lower limits.
  Rahual, please confirm using the model what the lowest value is
- The upperlimit shown in the schetch is 60+2*9.25 ~ 200 cm so this ought to 
be plenty for the sim checks.
- It woud probably be plenty for the sim tests, but would certinaly cut into 
the accpetance.

best Flemming




Flemming Videbaek
senior scientist
videbaek @ bnl.gov
Brookhaven National Lab
Physics Department
Bldg 510D
Upton, NY 11973

phone: 631-344-4106
cell     :  631-681-1596