Minutes from target meeting held June 22 2012 in 892-2-009

These minutes are available also from:

http://wwwcompass.cern.ch/compass/detector/target/Minutes/2012/

a) Collect information on the SMC magnet used by COMPASS until 2004. See
http://wwwcompass.cern.ch/twiki/bin/view/PolarizedTarget/TargetMagnetSMC

b) Werner: for the Drell-Yan target NMR coils inside the cells could be used.
The coils could be covered with PTFE. A separate coil could be used in the
transverse dipole field. It is also possible to probe the polarization from
inside and outside at the same time. 

c) New Kevlar-tube needs to be prepared to fit the filling holes in the new
target cells. New metallic connection piece to the target holder vacuum needs
to be prepared (has to fit to the Kevlar-tube tightly). The new target cells
need to fit into the Kevlar-tube.

d) Jaakko: the length of the glass fiber mixing chamber used 2011 with the
OD magnet is 140 cm from the flange to spherical end cap. The 160 cm long
mixing chamber used with the SMC magnet in 2004 is in the office cup board.

e) Werner: in case of radiation damage to the ammonia target material an
annealing procedure needs to be thought of. The warming up could be done
with a separate electrical heater inside the mixing chamber.

f) The microwave cavity modifications were discussed.