Minutes from target meeting held November 22 2007 in 888

These minutes are available also from:

http://wwwcompass.cern.ch/compass/detector/target/Minutes/2007/

a) Saturday November 17 8:00 overfilling of the magnet to 98 % level. Change
lower set point of LHe transfer valve. On Sunday 9:00 stop roots #1 to go to 
1.3 K temperature. Norihiro: roots #1 motor temperature high about 45 C while 
the others are below 40 C. At 17:30 disconnect and reconnect NMR cables to 
check the stability of the Q-meter tuning. Monday record TTH4, TTH5, TTH6, TTH9
and TPO3 in magnetic fields 2.5 T, 1.0 T and 0 T. Start removing helium-4 9:00.

b) Tuesday morning helium-4 removed and 46 K temperature reached in mixing
chamber. Unload ammonia 13:00 - 17:00. Target cells kept cold inside liquid
nitrogen path. Reload the empty target cells into mixing chamber. Wednesday
22:00 nominal helium-4 level reached in the dilution cryostat. Ramp up the
magnetic field on Thursday morning 8:00 and start empty target cell measurement
at 1.5 K. 

c) Target material storage and material weighing were discussed.