Fri Sep 16 13:38:11 PDT 2005
Liquid helium fill - BUBBA
Filled BUBBA with about 30 liters of
liquid helium yesterday. The fill went smooth and took about 25
minutes. Julie and Yongjae assisted with the fill.
Tue Sep 6 08:15:04 PDT 2005
SI-4 AF Demagnetizer -- FIXED
The SI-4 AF Demagnetizer is up and
running. The PA04 power amplifiers burnt out (failed) because of
insufficient air flow. The air filter was clogged with lint and
dust. The air filters are easily removed and need to be cleaned out
about every 6 months with water. In case of another power failure,
the PA04 power amplifiers can be purchased from Apex utech volume 7
price list.