15 December 2018 01:01 Machine update. MS beam restored to both target stations. 14 December 2018 23:40 Machine update. Injector experts are still installing a new Ion source, hopefully this will be completed and tested within the next hour. Machine setup will then commence. 14 December 2018 22:07 Beam OFF - The fault with the ion source is still under investigation. It is possibly a fault with the ion source rather than the extract power supply so this will now be changed. Update in 1 hour. 14 December 2018 20:43 The unit has been replaced within the power supply but failed again immediately. Investigations are underway, update in 1 hour. 14 December 2018 20:04 Beam OFF - We are currently changing a control box within the ION source extract power supply. Update in 30 minutes 14 December 2018 19:34 Beam OFF - Beam off while we investigate a problem with the ION source. Update in 15 minutes 14 December 2018 08:41 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 13 December 2018 18:02 Beam OFF - Solenoid 1 PSU has tripped off on phase failure. Investigations are underway. Update in 15 minutes. 13 December 2018 08:41 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 13 December 2018 03:10 We are experiencing issues with a Synchrotron Extraction Kicker power supply. We hope to restore beam within 15 minutes. 13 December 2018 00:57 Beam on at 00:45 Hours 12 December 2018 23:49 2RF5 was tripping with a water flow issue but has now been on for about an hour with no further trips. We are just waiting on the MMPS to get to operational level and hope to restore beam from 00:35 Hours. 12 December 2018 21:47 The Ion source is running again. unfortunately 2RF5 will not run and requires investigation. Engineers are on the way to site. Update at 2300hrs. 12 December 2018 20:56 We have replaced the penning gauge on the Ion Source and have also replaced the Source, we have also looked at the RF water flows in the Outer Synch and are in the process off running up the Main Magnet and starting the Source, we are hopeful for beam by 22:00hrs. 12 December 2018 20:05 A vacuum gauge has failed on the ION source and requires replacing. To change this we have to let the vacuum go in the ION source and run it back up again after the swap. We will use this time to adjust some water flows in the outer synch which have been causing trips this afternoon. Update at 2100hrs. 12 December 2018 18:56 Beam OFF - We are investigating a fault with the ION source preventing beam. Update in 30 minutes. 12 December 2018 17:29 Beam ON 12 December 2018 16:58 Beam OFF - Replacement of the control module is taking longer than expected. Update in 20 minutes. 12 December 2018 16:06 Beam OFF - Beam off while we replace a module in a solenoid power supply. This should take approximately 10 minutes. 12 December 2018 08:41 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 11 December 2018 08:41 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 10 December 2018 08:41 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 10 December 2018 07:53 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 10 December 2018 03:37 Beam OFF - We are currently investigating a problem with 2RF6. Update in 15 minutes 09 December 2018 08:41 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 08 December 2018 08:41 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 07 December 2018 12:07 Beam restored to TS1. CRISP shutter is now fully operational. Machine Status: TS1 Beam Current: 168.0µA at 40.0Hz MUON Beam Current: 6.0µA at 40.0Hz TS2 Beam Current: 39.9µA at 10.0Hz TS1 Methane Temperature: 110.1K TS1 Hydrogen Temperature: 23.8K TS1 Muon Kicker: On TS2 Decoupled Methane Temperature: 55.8K TS2 Coupled Methane Temperature: 37.0K TS2 Coupled Hydrogen Temperature: 17.0K 07 December 2018 09:03 Beam to TS2 Only 07 December 2018 09:00 Beam off to reconfigure machine to TS2 running. 07 December 2018 08:41 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 07 December 2018 08:12 TS1 beam will be turned off at 09:00 this morning to facilitate the CRISP beamline shutter jack change. Beam will continue to TS2 throughout and we hope to restore beam to TS1 by 12:30 Hours. 06 December 2018 11:38 Beam on 06 December 2018 11:06 The Ion source has been replaced and is running fine. All other equipment is on. We are just doing a little machine set up at base rate and hope to restore MS beam shortly. 06 December 2018 08:46 The Ion source needs to be replaced. We estimate 2 hours after which we will need a little time for machine set up. Hopefully we should be able to restore beam by 11:00 Hours. 06 December 2018 08:41 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 06 December 2018 08:38 We are still investigating the problem with the Ion source. Update at 09:00 Hours 06 December 2018 07:37 Overnight we have had problems with magnet temperature monitoring in the Outer Synchrotron. The problem has now been resolved and we are running up the Main Magnet Power Supply. There is also a problem with the Ion Source which appears to have a partial extractor blockage. If we are unable to increase the output we may have to remove the source to clean it or replace it. Inevitably its looking less likely that beam will be restored at 08:30. We will update on progress when we have further information. 05 December 2018 08:41 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 05 December 2018 08:34 Beam OFF - The beam is now off for the scheduled maintenance day. The user run will restart tomorrow morning at 08:30hrs. 04 December 2018 14:43 Beam OFF - Beam off to TS 2 as we investigate a fault with the extract septum PSU. Update in 20 minutes. 04 December 2018 08:41 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 03 December 2018 18:00 Beam off whilst we reconfigure the machine for TS2 running only. Beam should be restored to TS2 shortly. 03 December 2018 11:38 Beam to target 1 will be suspended at 18:00hrs today in preparation for the work on the hydrogen moderator over the maintenance day. Beam to target 2 will be suspended for approximately 10 minutes as we swap ISIS to target 2 only mode at 18:00hrs. 03 December 2018 08:41 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 02 December 2018 22:08 A vacuum pump has failed on LINAC tank 4. This now being replaced. Beam should be restored shortly. 02 December 2018 16:23 MS beam restored to both targets at 16:20hrs. 02 December 2018 16:14 Supplemental message: The 4616 valve has now been run up to MS closed loop. This means that base-rate beam is imminent, increasing slowly in rep-rate. 02 December 2018 16:05 The replacement 4616 valve has now been run up to MS/4 (closed loop). Conditioning continues. Next up-date at 16:30hrs. 02 December 2018 15:02 The 4616 valve change is progressing well but it will need to be run up gradually and carefully. Next up-date at 16:00hrs. 02 December 2018 12:54 The replacement 4616 valve on Modulator 3 is suffering from an intermittent internal breakdown. A decision has now been made to replace this valve with the spare. Next up-date at 15:00hrs. 02 December 2018 12:35 We still do not have an up-date on the state of the replaced 4616 valve. Hopefully, we should know more very shortly; a message will be put out then. 02 December 2018 12:01 Unfortunately, a potentially serious problem has just arisen with the "new" 4616 valve. Investigations are underway and we should know more in 30 minutes. Next up-date at 12:30hrs. 02 December 2018 11:01 The ionic current on the 4616 valve is still falling, but slower than expected. Beam is not now anticipated until at least midday. Therefore, the next up-date will be at 12:00 noon. 02 December 2018 10:32 Conditioning on the 4616 valve on Modulator 3 is now nearly complete. We need to wait for the valve ionic current to reach an acceptable level, before starting to set up beam in the Linac. This process should take place within the next 30 minutes or so, and MS beam to both targets should