User name jpchen
Log entry time 17:33:21 on October 9,2006
Entry number 186666
keyword=helium target at 6.6K, 199 psi, 19 g/s and 320 W with fan 48 Hz.Dave completed the switch to helium and had helium target cooled-down.
Cryotarget had flow limit set at 12 g/s. We did not have enough
cooling power. After talking to Pete Knudsen, he raised it to 20 g/s.
The operation condition now is 6.6K, fan at 48 Hz (20%).
Pressure is about 199 psia. With flow of 19 g/s, we have about 320 Watts HP heater, which probably is about enough for 80 uA on 10 cm
helium cell.
FIGURE 1
FIGURE 2
