27 May 2022 10:42 Beam ON 27 May 2022 10:05 Beam OFF - The Main Magnet Power Supply tripped off at 09:10 hrs. Run up is nearly complete and we expect beam within the next 30 minutes. 26 May 2022 04:11 Machine update:- Beam restored to target station 2 @ 04:00hrs. 26 May 2022 03:38 The vacuum specialist discovered a problem on Tank 4 which has now been rectified, we are in the process of running up the Linac to continue beam operations. 26 May 2022 02:26 Investigations are ongoing as to the vacuum rise, a vacuum expert is on route to conduct further tests, update at 03:30 hrs 26 May 2022 01:28 Unfortunately the vacuum in Modulator 4 is not recovering to levels capable of sustaining beam, experts are on route to ascertain the cause of the problem. Update at 02:30 hrs. 26 May 2022 01:01 We have experienced a sharp vacuum spike in Tank 4 which caused a trip, we are in the process of running the Modulator back up. 25 May 2022 10:03 In the ISIS seminar today at 1:30 in CR03 (R61), Khai Ngo will present “Fast neutron measurements using scintillator detectors” and Luke Clifton will talk about “Examining Membrane Biochemistry with Neutron Reflectometry”. Everyone is welcome to attend. 18 May 2022 08:34 Coffee & cake for users - 2:30pm - TS-2 foyer. 18 May 2022 08:30 Beam off - Maintenance day. 18 May 2022 07:31 Machine update: Beam will be switched off at 08:30 for the scheduled maintenance day. 13 May 2022 08:49 Beam on 13 May 2022 08:30 We are currently having problems with a PSU in EPB2. Experts are on site and the PSU is being swapped out. 11 May 2022 20:44 We currently have a site wide issue with the telephone exchange that is preventing calls coming through to the control room. This has been reported to estates. If you need to contact the ISIS MCR please contact the Duty Officer on 07720207086. 07 May 2022 19:09 R80 Instrument timing issues have been resolved. If anyone has further issues please call the ISIS MCR. 07 May 2022 17:59 There seems to be a problem with the time of flight signal which is causing data issues for all of the R80 instruments.We have people looking into the problem. 07 May 2022 10:57 We are experiencing quite a few machine trips due to ongoing Synchrotron beamloss issues. We are still addressing the issue whilst trying to maintain beam to TS2. Beam intensity is also slightly reduced. 07 May 2022 10:08 We are in a position to run beam but are having some issues with Synchrotron beamloss. Rep rates will be variable whilst we carry out some machine setup. 07 May 2022 07:39 Repairs to Fundamental RF system 8 are complete and the system is on and running. The Main Magnet Power Supply will take approximately two hours to run up. As long as there are no further issues we hope to restore beam by 10:00 Hours. 07 May 2022 02:59 Beam OFF - We have changed the High Power Drive on 1RF8 but this has not solved the problem. A further High Power Drive change is required, additional support is on route to the lab to assist. We do not expect beam before 08:00hrs. Update at 06:00hrs. 06 May 2022 22:57 We have taken the decision to swap the high power drive on 1RF8. Experts are on route to site. Update at 03:00. 06 May 2022 21:41 We are currently having problems with 1RF8. We have an expert on route to site but we have had to gain entry to the outer synch which will mean a few hours off. Update at 23:45. 06 May 2022 16:47 We are currently in the final stages of the main magnet run up. We should have beam again within the next 30 minutes. 06 May 2022 14:54 Unfortunately we are having further problems with water flow to Fundamental RF system 8 High Power drive. We need access to the Outer Synchrotron to address the issue. We do not expect to restore beam before 16:00 hours due to the run up time associated with the Main Magnet Power Supply. 06 May 2022 13:27 Beam on at 13:10 Hours 06 May 2022 11:13 Beam is off for access to the Outer Synchrotron to adjust a water flow on fundamental RF system 8. We hope to restore beam by 13:00 Hours 04 May 2022 11:14 Beam ON at 10:30 04 May 2022 09:43 Physicists have continued throughout the evening to set up ISIS for 700MeV running on 5 RF cavities. Beam optimization has recommenced this morning and we plan to increase the rep-rate throughout the day as beam loss tuning allows. All being well, ISIS will run at 700MeV to TS2 until the maintenance day on the 18th of May. On the 18th we shall re-evaluate the situation. 03 May 2022 15:12 Work continues on 1RF3 Anode Power Supply. In parallel with this The ISIS Physicists are making good progress setting up the machine to run at 700MeV with five fundamental RF cavities working. We expect to be able to recommence instrument operations with 700MeV beam by 08:30 tomorrow morning at the earliest. 02 May 2022 22:23 Beam OFF - Unfortunately the investigations into the issues with 1RF3 have not gone well and it would appear the fault is more complex that previously thought. In order to fix this a far more time consuming investigation into internal issues with in the power supply itself is required. This will unfortunately delay the start of the user run, with no beam expected within the next 24 hours. An update will be issued at mid-day. 02 May 2022 19:33 Beam OFF - Investigations are still underway. Update at 22:00hrs 02 May 2022 18:13 Beam OFF - Investigations are still underway. Update at 19:30hrs 02 May 2022 17:18 Beam OFF While we investigate an issue with the 1RF3 RF cavity. 02 May 2022 15:21 Beam ON 02 May 2022 13:26 The Ion source has been replaced and we should be commencing setup shortly. 02 May 2022 11:05 W6 LET beam line is now cleared for beam 02 May 2022 09:15 Beam OFF - The flow meter has been repaired and we are now in process of the planned Ion source change. This should take approximately 2 hours followed by some set up time. 02 May 2022 06:35 Beam is currently off as we have a problem with a water flow meter in the LINAC. An expert is on route to site. Update at 08:00. 01 May 2022 21:10 Beamlines cleared for Beam: E1 ZOOM E2 SANS2D E3 POLREF E4 INTER E5 OFFSPEC E6 LARMOR E8 WISH W1 CHIPIR W5 IMAT W7 NIMROD 01 May 2022 13:33 The synchrotron RF system has been repaired and we will be continuing with machine set up shortly. 30 April 2022 16:21 We have a major issue with one of the synchrotron RF systems that will take some extended time to work through. We will update MCR News as we progress through the work that is required to get the system operational. We do not expect any beam for at least 24 hours. 28 April 2022 15:10 We have now finished running to the Synchrotron Room Beam Dump and have removed all of the barriers and signs prohibiting access to the R6 north (Bat Cave), Tunnel 3 stairs to R6 and the Chalk Pits area and access is now permitted. 28 April 2022 08:08 Beam to the Synchrotron Room Beam Dump will commence at 08:30 hours. This mode of operation may increase the levels of radiation in the R6 north ‘Bat Cave’. 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. 08 April 2022 09:37 Please be aware the user run officially ended at 08:30 hrs this morning. Machine physics is now underway so intermittent beam at various intensities may be available over the weekend but cant be guaranteed. 07 April 2022 18:19 Machine update:- Beam restored to target at 18:00hrs. 07 April 2022 17:03 Machine update:- The new valve has been installed and is in the conditioning phase, hopefully beam will be re-established within the next hour. 07 April 2022 14:06 We have suffered a valve failure in the LINAC. Experts are gathering components and we are gaining entry to the LINAC ASAP. We expect the valve change and condition to take approximately 3 hours. Update at 17:00 04 April 2022 07:34 Machine update:- Beam restored to target station at 07:30hrs 03 April 2022 21:34 Machine update:- All equipment is now at standard settings and ready for beam. Unfortunately we are still waiting on the Hydrogen moderator on Target 2 to cool down to normal conditions. This isn't expected to be ready until the early hours of Monday morning. Further update will follow. 03 April 2022 15:37 The Target 2 Cryo system is still on schedule to recover late tonight or during the early hours of tomorrow morning. A small amount of beam every hour or so will continue to be seen. Next Update @ 21:00