On shift: WR, AT 16:00 - 24:00 Logbook 8 pages 23-25 Ecm = 3523.5 MeV Run 5759 (inherited) 367.0 nb-1 Run 5760 (in progress) Ibeam at start : 34.6 mA Ibeam at end : 30.3 mA Typical sigmaP: ~1.6 MeV/c comments: Beam still seems very unstable - running only with very low jet density (~ 1.1E14) 18:30 Martin Hu called from MCR. Problems with the cooling systems. Run paused and gas jet off. 18:45 VLPC HV tripped. 19:15 Turned on the gas jet again - slowly increasing the density to ~1.1 * 10^14 cm-3 two DAQ hungs, The VLPC cooling patrol introduced some new features in their check list. The check should be done something like every hour. Therefore - try not to get caught with tripped VLPC HVs :-) Freon bottle is almost empty - output still at 5 psi. Have a good night, Willi and Amiran.