2011/04/29 1245 Stop flashing detector. Fill N2 cold trap full. 1730 Start LHe transfer. 1810 Stop LHe transfer. Helium liquid level 97.6%. 2130 Fill N2 cold trap full. 2215 Flash detector: LED 1 on both DIBs; 0.6 mA; 100 μs on, 2.5 ms off.