03 October 2022 16:54 Machine update:- The Main magnet experts have found a blockage in the water circuit on the DC power supply and are now working to rectify the problem. Update on this repair will continue throughout the afternoon and evening. 03 October 2022 11:40 The Beam will be switched off at 12:00 today for approximately 8 hours. This is to allow remedial works to be carried out on the MMPS. Update @ 16:00 02 October 2022 18:59 Beam restored to TS2 at 18:30. 02 October 2022 17:45 The MMPS has tripped off. We have reset and are in the process of running the power supply up. Beam should be back on within 45 minutes. 02 October 2022 06:25 The short duration beam outages overnight have been caused by fluctuations with the Main Magnet Power Supply AC current, instability with the Extract 1 Septum power supply output and a number of LINAC modulator trips. The MMPS DC power supply trips experienced yesterday have not re-occurred overnight. 01 October 2022 19:28 Beam restored to TS2 at 19:15 Hours. 01 October 2022 18:36 The MMPS has tripped off again. We have two experts on site who are making remedial measures to try and keep the power supply on. These should take around an hour plus the run up time of the MMPS afterwards. Update at 20:00Hrs. 01 October 2022 14:45 The MMPS has tripped. We have reset and are just in the process of running back up. Beam should be back on within 30 minutes. 01 October 2022 12:23 We have found and fixed the issue with the interlock chain. It will take us around 20-30 minutes to lock up areas and get beam back on. 01 October 2022 10:13 We are just in the process of fault finding the broken interlock. This is a case of checking drawings and identifying cables/PLC's. We have another expert on route to site to assist. Update at 12:00hrs. 01 October 2022 08:05 We currently have an interlock problem with the machine. An engineer is on route to site. Update at 10:00am. 01 October 2022 03:55 Beam ON 01 October 2022 03:00 Beam trip due to the Main Magnet Power Supply DC and AC tripping off. We are investigating and will restore beam as soon as possible. 29 September 2022 23:58 Machine update:- Beam restored to target 2 @ 23:08hrs. 29 September 2022 22:24 The MMPS was run up to operational current and we briefly restored Beam to Target 2. However, the DC has tripped off again and we will now investigate the cause of this. Update at 23:30 29 September 2022 19:13 Beam OFF - The DC section investigations to diagnose the cause of the MMPS fault are on going. At this time there are no further updates. Update at 22:00 hrs. 29 September 2022 16:58 Beam OFF - The DC section investigations into the MMPS fault are still on going and there are no new updates at present. Update at 19:00 hrs. 29 September 2022 15:06 Beam OFF - The DC section investigations are still on going and there are no new updates at present. Update at 17:00 hrs. 29 September 2022 13:14 Beam OFF - Investigations into the issues with the DC MMPS are still on going. Additional monitoring equipment has been installed into the PSU to locate the tripping issue with the power supply. Update at 15:00 29 September 2022 11:09 Beam OFF - We are still investigating the issue with the DC MMPS power supply tripping off. Update at 13:00hrs 29 September 2022 09:53 Beam OFF - Experts are still looking into the DC MMPS power supply fault, Update at 11:00hrs 29 September 2022 09:20 Beam OFF - The DC MMPS power supply has tripped off and requires investigation. Update at 10:00hrs 29 September 2022 08:06 The problem with the water flows in the Inner Synchrotron has now been resolved. We are now running up the main magnet - expect beam at 0900hrs. 29 September 2022 06:00 Machine update:- Machine setup has gone well overnight and MS beam was restored to target 2 just before 05:00hrs. Unfortunately we now have a problem with water flows in the Inner Synchrotron. Experts are on site investigating. Update 07:30hrs 29 September 2022 01:15 Machine update:- The 4616 valve has been replaced and we are now starting conditioning, this process will take several hours overnight. Updates will follow. 28 September 2022 23:01 We are experiencing problems with Tank 3 in the Linac. Experts are on site changing one of the valves on Modulator 3. This is expected to take a few hours to complete. Update @ 01:00. 28 September 2022 16:53 Beam to the Synchrotron Room Beam Dump has now ceased – access to the R6 north area (Bat Cave) is now permitted. 28 September 2022 14:39 Attention. Beam to the Synchrotron Room Beam Dump has been established.'No Entry' barriers and signage in and around R6 should be observed at all times. 28 September 2022 13:30 Attention: The R6 north area (Bat Cave) is now closed and the search procedure is underway, any personnel remaining must leave the area immediately. 28 September 2022 13:15 Attention: The R6 north ‘Bat Cave’ area will be closed in 15 minutes time at 13:30 hours in preparation for beam to Synchrotron Room Beam Dump operation. Please leave the ‘Bat Cave’, Tunnel 3 stairs to R6 and the Chalk Pits areas as a search is about to commence. 28 September 2022 12:57 Attention: Beam to the Synchrotron Room Beam Dump will commence in one hour at 14:00 hours. This mode of operation may increase the risk of exposure to radiation to individuals in the R6 north ‘Bat Cave’. In 15 minutes time, at 13:15 hours, access to R6 north ‘Bat Cave’, Tunnel 3 stairs to R6 and the Chalk Pits areas will be prohibited until further notice. “Tensator ‘No Entry’ barriers and signage will be erected to indicate prohibited areas and names of individuals ignoring these barriers will be recorded. 28 September 2022 08:12 A 24 Hour Maintenance period will commence at 08:30 Hours 28/09/2022. Up until 17:00 Hours ISIS Physicists will be working on the machine in an attempt to diagnose ongoing running issues. At 17:00 Hours there will be an Ion source change and after some setup we hope to get the machine running by early evening. 26 September 2022 21:53 We are currently experiencing another problem with a water flow in the Linac. Update at 22:45. 26 September 2022 19:12 The Linac is just being run back up so we should have beam restored in the next few minutes. 26 September 2022 18:42 We are just making entry to the Linac to increase a water flow. Update @ 19:00. 25 September 2022 19:57 Beam ON 25 September 2022 19:13 Beam has been fairly stable today, most significant off was at 15:00 which was MMPS. MMPS has just tripped gain hopefully will run up again alright. Update @20:00 25 September 2022 03:19 The intermittent interlock problem has now been fixed and we expect beam to be more stable. 24 September 2022 21:09 We are experiencing issues with the beam interlock system. Experts are on site investigating the cause of the problem. We expect beam to intermittent until the issue is diagnosed and fixed. 24 September 2022 14:02 Machine has been running fairly well over night and this morning. Around midday today a instability has been showing itself. Physicist looking from home to see if can be tuned out. 21 September 2022 15:48 Machine update:- MS beam restored to Target station 2 @ 15:40hrs. 21 September 2022 15:04 Tank 3 RF conditioning has gone well and we are now waiting for the vacuum to reduce further before trying some beam. We expect to see some low rep rate beam within the next 30 minutes. 21 September 2022 12:06 Tank 3 RF conditioning has begun and is going well. At this stage we are unable to give a more accurate time scale on when we will have beam. Update @ 15:00. 21 September 2022 08:57 Tank 3 vacuum is nearly at a level that will allow the tank RF conditioning to begin. It is difficult to give an accurate time for how long conditioning will take but we are hoping for beam sometime this evening. Update @ 12:00. 21 September 2022 06:08 The vacuum has come down fairly well over night although not quiet low enough for RF conditioning to start. Hopefully within the next 2-3hrs conditioning will be able to commence. Update @ 09:00 21 September 2022 00:01 The RF Tank window has been changed. We are now waiting on the Tank to vacuum down before RF conditioning of the Tank can start. Update @ 06:00 20 September 2022 21:49 It has been confirmed that a RF tank window has failed. We will be off for approximately 24 hours. We will update MCR news as and when work progresses. 20 September 2022 21:00 We have linac experts on site investigating a possible RF window problem. They will confirm within the next 30 minutes if it is the window. 20 September 2022 08:30 User run resumed @ 08:30. 20 September 2022 06:08 Machine has run fairly well over night, although at a lower intensity than normal. Physicists hopefully can optimise setup during the day so higher levels can be achieved. 19 September 2022 14:49 The main magnet power supply problem has been fixed and it has been running overnight and throughout this morning with no further issues. All other equipment is operational and beam optimisation will continue throughout this evening and tonight. User run to continue from 08:30 tomorrow morning as planned.