22 September 2019 14:45 Machine update:- The 24 hour maintenance day will start on Wednesday 25th September at 08:30hrs. However due to the temperature of the TS1 hydrogen moderator becoming increasingly difficult to control, We are intending to turn the beam off to TS1 at 20:30hrs on the evening of Tuesday 24th with the aim of it being cold again and ready for beam on the morning of Thursday 26th. 22 September 2019 08:40 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 21 September 2019 19:26 BEAM ON 21 September 2019 18:32 Machine update:- We are still trying to rectify the problem with 1RF9. Experts are still on route to the facility to aid in repairs. Next update 19:30hrs. 21 September 2019 17:45 Machine update:- We have a problem with a fundamental RF system in the Synchrotron. We are trying to contact an equipment expert for advice and assistance. Next update 18:30hrs. 21 September 2019 08:40 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 20 September 2019 08:40 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 19 September 2019 13:46 MS beam restored to both Targets at 13:44. 19 September 2019 13:40 An equipment specialist is still investigating the fault on the RFQ power supply. Next up-date at 14:00hrs. 19 September 2019 13:29 We are experiencing problems with the RFQ power supply in the Linac. Up-date in 10 minutes. 19 September 2019 08:40 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 18 September 2019 16:29 The relay giving us issues early has been replaced. Beam restored at 16:25. 18 September 2019 13:46 We are still experiencing problems with synchrotron RF system 3 waterflow. The problem is thought to lie with a relay within the system that experts are trying to resolve. Update at 14:45. 18 September 2019 12:20 We are currently experiencing difficulties with the water flow on one of the RF cavities in the Synchrotron, an expert is investigating the problem. Update at 12:45 hrs 18 September 2019 09:40 Beam on to both TS1 and TS2. 18 September 2019 08:40 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 18 September 2019 08:38 Beam reinstated to TS2. Beam may be intermittent to both Targets as we are still repairing EPB1 diagnostics. 18 September 2019 08:09 We require access to the inner synchrotron to remedy the diagnostics problem. Beam off to both targets. Update at 09:00. 18 September 2019 07:27 We are experiencing problems with EPB 1 beam diagnostics and have therefore turned off beam to TS1. We are still beaming to TS2. An expert is on route to fix the problem. 17 September 2019 08:40 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 17 September 2019 07:05 Machine update:- Beam restored to both target stations at 06:59hrs. 17 September 2019 05:36 Machine update:- We have a problem with 1RF7 filament interlocks not resetting. A machine expert has been contacted and is on route to assist with repairs. Next update 07:00hrs. 16 September 2019 08:40 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 16 September 2019 03:53 Beam restored at 03:45 16 September 2019 02:58 We are still having problems with the main magnet power supply. An equipment specialist is in attendance. Update at 04:00. 16 September 2019 01:29 We are currently having problems with running up the main magnet power supply. Update at 02:30 15 September 2019 23:35 One of the RF system has been tripping the machine all evening, to fix the problem entry to the Outer synch is required. Beam should resume in approxiately 2 hours time at 01:30. Update @ 01:00 15 September 2019 08:40 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 15 September 2019 05:15 We have managed to get the EPB PSU to stay on although there is still an issue with it. Expert is currently on route and should be in shortly, Beam may have to go off again to investigate further. 15 September 2019 04:26 There is an issue with one of the EPB magnet PSU, we are currently in contact with an expert. Update @ 05:00 14 September 2019 22:05 Beam restored to both TGT 1&2 @ 22:05 14 September 2019 21:21 There is an issue with one of the PLC systems on TGT 2, expert has been contacted and is on his way in. TGT1 beam will resume in approx 5 mins. Update @ 22:00 14 September 2019 08:40 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 13 September 2019 13:40 Machine update:- Over the last day and a half, Tank IV has been gradually conditioned with RF and the field was increased to the level where it was possible to start to run beam this morning. Although the tank is at a lower RF level than we normally operate, the machine physics team has been able to tune the accelerator to deliver a good beam current (~178µA). The machine will now be left in this configuration in the hope that the RF window can survive in this environment. Any problems with the window over the weekend will be communicated on MCR News, but if it does fail, further repairs will not be attempted until a more extensive clean can be prepared and completed next week. 13 September 2019 09:23 Machine update:- Machine adjustments have been made following tank 4 conditioning, we have establish low level beam. Machine physics personnel are working on reducing machine losses, there will be intermittent beam. Further updates will follow. 13 September 2019 08:40 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 12 September 2019 15:25 Machine update:- Tank 4 conditioning is continuing into this evening. It is unlikely that there will be any beam today. Updates on machine repairs will continue. 12 September 2019 13:39 Machine update:- Weekly Fire bell testing is about to commence. Testing will be pulsed. Any continuous bells please treat as a real incident. Areas and times: R5.1, R5.2, R5.5 13:45 Hours R5.4 14:00 Hours R55 14:30 Hours R6 15:00 Hours R80 15:30 Hours 12 September 2019 09:16 Machine update:- The conditioning of tank 4, after the window change on Tuesday is continuing. It has been decided to try and run low level beam and slowly increase the intensity staying within tolerances of the vacuum and x-ray levels from the tank, when the conditioning has finished. Machine updates will continue throughout the day as we progress with the fault. 12 September 2019 08:40 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 11 September 2019 11:22 No Beam before tomorrow lunchtime. Investigation works of Linac tank window failures continues. Update in the morning @ 09:30 11 September 2019 08:40 Attention TS1 Methane Moderator Users: a liquid transfer will start in around 5 minutes 11 September 2019 04:01 Following the failure of the Tank 4 RF window yesterday, work to replace this window and carry out internal cleaning, concluded at 01:00hrs this morning. The Tank vacuum pressure has been reducing steadily and vacuum leak tests will be performed later this morning, once the pressure is within its normal operating range. 10 September 2019 16:13 Machine update:- After investigations into the tank 4 window failures it has been decided that there will be no beam for at least 24 hours whilst machine experts make further examinations. We will send out a progress updates tomorrow morning. 10 September 2019 12:47 I can confirm Linac Tank 4 window has again failed. Experts are currently changing the window and investigating cause of failure. Update @ 16:00 10 September 2019 11:58 It looks like Linac Tank 4 window may have failed again, experts currently investigating issue. Will update @ 13:00 or before when more information become available. 10 September 2019 11:21 N3 SURF N4 CRISP N6 IRIS N7 POLARIS Now clear for Beam. The remaining TGT 1 Beamlines will be cleared shortly. 10 September 2019 11:09 S1 MAPS S2 Vesuvio S6 MARI S7 GEM S8 ENGIN-X S9 PEARL RIKEN HIFI