Present: Peter Bosted, Don Crabb, Keith Griffioen, Piotr
         Decowski, Perry Anthony

Target: Don and Perry talked about computer control. Don has sent
first draft of document for Design Report. Contacted Oxford about
things like He exhaust paths, how much super-insulation, etc. Magnet
will not have thin windows, so vacuum breath not likely, but still
is possible. Delivery time is now 1.5 years (compared to 1 year
earlier). Perry will mail Don his draft schedule. Don will ask 
Seppo to schedule time to help with dilution fridge. Josh 
Pierce has been accepted as graduate student at UVa: will work
on the target, as will Don and Paul McKee will do a lot this summer.
Review May 15.

Beam Line. Peter looked at using Thick diamonds vrs thin ones. Get more
rates for E160 and E161 without much loss of sharpness of coherent
peak, because collimation doesn't work very well at high energies.
For E160, Keith will study how important it is to use the coherent
peak (and the brem. endpoint) to identify elastic vrs inelastic events.
For now, asked Yerevan not to cut their 13 mm wide, 1 mm thick
diamond, as it may be ideal! Beam line was inspected on last Wednesday
(a ROD day), and a good location for the goniometer, about 7 m 
down-beam from the end of Q28, was located. Many photos were taken
of the dump area, and a plan made to remove the four bend magnets
in June. Roger Erickson suggested spreading the magnets out in z
when they are re-installed, so that less power is needed to bend
the electrons. It may also be possible to use the old 2 MW dump,
in that case. Lew Keller has looked at muons from a 60 KW dump
at 8 deg., and finds rates are negligible. He will check to see if
this is still true if dump is placed directly after last bend,
rather than by the alcove wall.
 
Spectrometer Design: Peter asked Keith to check is using flat decay
distribution of J/psi (in cos(th_star) is correct, rather than 
(1+cos**2) used in the proposal. New spectrometer has acceptance only
near cos**2=0 (e1=e2/E/2), so it makes a difference. It also means
it would be hard to measure pol. of psi with new spectrometer 
(assuming this is measured as (1 + a*cos**2). Keith is of the opinion
that getting psi-prime is more important than pol. measurements,
given a choice. 

Simulations: Piotr has been looking (for B81 spectrometer) at effect
of photons that Atomic Compton scatter in the target and hit beam
pipe near end of magnet, or near detectors. Finds about 100 hits/spill
for case of 1 mm thick diamond and max. electron beam current, which
is probably o.k. Checking to see if more lead is a good option.
He will continue to look at hadronic punch-through, and background
from e+/e- pairs made in target. We also need formula for Nuclear
Compton from Lead, so check this background. Keith will look into this.
Lew Keller has agreed to start looking into backgrounds from the
photon collimator. We also need to worry about neutron backgrounds
and spectrometer shielding.

Detectors: Keith has found out that Jlab is getting a lot of fixed target
detectors from Fermilab. He will see if we might want any of them. Perry
will check with SLAC to see if we can get a list. Peter will check if
any of the large dipoles at Fermilab has become available: they might be
very good for E161 (LASS is too wide and too short compared to ideal).

DOE Review. Seems to have gone well. They liked looking at the diamonds
that Dieter passed around.