Minutes from target meeting held May 14 2010 in 892-2-009

These minutes are available also from:

http://wwwcompass.cern.ch/compass/detector/target/Minutes/2010/

a) Jaakko: stop helium-3 roots on Saturday. Condense helium-3/4 mixture 
in tanks #3 and #9 from the still pumping line. Restart roots and refill 
tank #3 with the pumped purified gas. Continue normal circulation of gas,
mostly helium-4.

b) Norihiro: stop helium-4 pumps on Sunday to test PLC alarm with increasing
evaporator pressure. Threshold set to 20 mbar.

c) Jaakko: seven pt100 thermometers on the helium-3 roots motors were cabled to
the pump room PLC substation.

d) Fabrice: some water drops from the air conditioning duct above the helium-4
pumps on Wednesday evening. Continuous rain outside at the same time. The
water cooled heat exchanger between roots and rotary covered with plastic.

e) Kaori: second empty target cell calibration would be useful. 

f) Target shifts were discussed. Presently the shifts for run 2010 are not 
covered.