Comment stsetch SNF 2010-07-07 20:54:49: Update Helium flow problem

I believe I found the root cause of the high helium leak rate. When we replaced the cooling He valve a few months ago, it had an indicator switch which actuates when the valve is open. At the time, we thought that it was just a switch and that its position was not critical as long as it switches when the valve is actuated. What I found however is that the the switch actuator is used to meter how much the helium valve is opened. Adjusted the switch position so now the helium flow (bare wafer) from from 2.0 to 3.4. We still need further testing to verify.