22:30 Shift handed over. DAQ OK. Target OK. Beam OK.

00:22 Temperatures OK

Stats OK

Good events OK

Scalers OK

System wide checks as usual - WR fails by 68 ns

Leakage current OK

Target OK

Motors OK

Pressure in ring 5E-10 mbar OK

Beam OK

02:26 - All OK as above

WR now fails by 80

Data rate ~800 KB/s

03:40 All OK as above

Data rate back to ~ 1900 KB/s

04:20 All OK as above

Started compressing files in WS3, monitor 1

Noticed bias is not as stable as it has been so far, but no reason for concern. See attach.

04:30 Saw a spike in counts similar to beam halo. See attachment. Did not see it before. No effects on leakage current. To be checked offline.

06:00 Could not see any more spikes

All other checks OK as before.

Data rate back to ~1000 Kb/s

06:32 Requested beam off for end of beamtime.

Left DAQ on - run R88

Turning off jet target as per Nikos instructions

Final cleanup + pulse walkthrough to be done by JM and OH later today.

Target nozzle removed - pressure in S1 now 1.93E-8 mbar

Valves closed

Entering cave to switch compressor off and change N backing pressure to 10 bar.