Beam status

MCR News

18 May 2026 20:22
    Machine update:-
    
    MS beam restored to both Target Stations.


18 May 2026 19:29
    Machine update:-
    
    Experts are now on site investigating the PLC problems. Update @ 20:30hrs.


18 May 2026 18:51
    Machine update:-
    
    We have a problem in the Inner synchrotron with the water flows to certain
    magnets. We are investigating to rectify the fault. Update 19:30hrs.


14 May 2026 18:19
    Beam ON


14 May 2026 17:22
    BEAM OFF - We are experiencing a low flow on one of the synchrotron RF
    systems liquid resistor. An equipment expert is on route to investigate
    further.
    
    Update @18:30.


13 May 2026 12:26
    Beam ON


13 May 2026 11:57
    We have a waterflow trip that has required entry to the inner synchrotron.
    Staff are already in there making adjustments. Update at 12:45.


13 May 2026 08:26
    User Coffee and Cake: 3:00pm today, TS1 coffee area. All welcome!


11 May 2026 21:00
    Machine update:-
    
    The IBEX fault causing some of Target 1 beam lines to not receive beam
    information has now been rectified.  Any beam lines still experiencing
    problems, please contact the Control Room.


11 May 2026 19:07
    Machine update:-
    
    It has been reported that some of the beam lines are not receiving counts
    from the IBEX system. Experts have been contacted are are looking to
    rectify the problem.


11 May 2026 18:56
    Machine update:-
    
    MS beam restored to both target stations at 18:50hrs.


11 May 2026 17:20
    Machine update:-
    
    We have a extract loss down EPB1 which is causing high losses. Machine
    experts are on site trying to rectify the fault. Update 19:00hrs.


11 May 2026 14:30
    We have been off with a water fault in the inner synchrotron. We have
    changed a flow meter and are just in the process of getting the beam back
    on.


11 May 2026 08:43
    TS2 users: We currently have a beams diagnostic issue. Beam is off whilst
    we investigate this. We are still beaming to TS1.


11 May 2026 07:54
    Beam ON


11 May 2026 05:47
    The fault with the correction mag PSU's has been narrowed down to a
    PLC/Controls issue.  Other elements of the machine have also trip off due
    to this fault, including the MMPS which may take some time to run up again
    once fault is rectified. Experts are currently in and working on the
    fault. 
    Update @ 08:00


11 May 2026 04:40
    Team of specialist are currently working on the correction magnet power
    supplies. There will be update at 6:00 AM


11 May 2026 02:49
    There is an issue with some of the correction magnet power supplies
    located in the Inner Synch. ISIS Crew currently investigating.
    Update @ 04:00


09 May 2026 08:47
    Beam ON


09 May 2026 08:21
    BEAM OFF - We are experiencing high beam losses in the synchrotron. A
    machine expert is currently investigating the cause of this.
    
    Update @ 09:00


09 May 2026 05:36
    Beam back to normal running @ 05:35


09 May 2026 04:57
    The fault with the RF power supply has been fixed. The MMPS was required
    to be switched off during the fix, run up for the machine will be about an
    hour.
    Update @ 06:00


09 May 2026 02:53
    Expert still working on the RF power supply fault.
    Update @ 05:00


09 May 2026 01:57
    Expert is in investigating into the issue with the RF power supply.
    Update @ 03:00


09 May 2026 00:18
    There is an issue with one of the power supplies in the fundamental RF.
    Expert is on route to investigate.
    Update @ 01:30


06 May 2026 19:36
    N9 EMMA cleared for beam.


05 May 2026 16:16
    Beam on.


05 May 2026 16:03
    RIKEN has been cleared for beam.


05 May 2026 15:05
    There is a Synchroton Kicker cable fault in the inner sync. Experts are
    currently investigating. The repair may take several hours.
    Update @ 17:00


05 May 2026 11:56
    N6(A&B) IRIS and OSIRIS now cleared for Beam


05 May 2026 11:52
    S1 MAPS now cleared for Beam


05 May 2026 09:13
    S6 MARI now cleared for Beam


05 May 2026 08:32
    E1 ZOOM now cleared for Beam


05 May 2026 07:51
    Beamlines cleared for beam:
        
    S2 VESUVIO
    S3 SXD
    S4 MERLIN
    S7 GEM
    S8 ENGIN-X
    S9 PEARL
    
    MUON
    HIFI
    MuSR
    EMU
    
    N1 SANDALS
    N2 ALFRED
    N3 SURF
    N4 CRISP
    N5 LOQ
    N7 POLARIS
    N8 TOSCA
    N8A INES
    
    W1 CHIPIR
    W5 IMAT
    W6 LET
    W7 NIMROD
    
    NILE
    
    E2 SANS2D
    E3 POLREF
    E4 INTER
    E5 OFFSPEC
    E6 LAMOR
    E8 WISH
    
    
    Beamlines awaiting Rad surveys, will be completed shortly
    
    S1 MAPS
    S6 MARI
    
    MUON
    RIKEN
    
    N6 IRIS/OSIRIS
    N9 EMMA
    
    E1 ZOOM


04 May 2026 22:57
    Machine update:-
    
    TS1 Beam Current: 148.6µA at 40.0Hz
    TS2 Beam Current: 38.7µA at 10.0Hz
    TS1 Methane Temperature: 112.3K
    TS1 Hydrogen Temperature: 22.2K
    TS1 Muon Kicker: On
    TS2 Decoupled Methane Temperature: 62.9K
    TS2 Coupled Methane Temperature: 13.0K
    TS2 Coupled Hydrogen Temperature: 18.2K


04 May 2026 20:27
    Machine update:-
    
    Machine physics experts are still working to reduce the vacuum losses
    whilst optimising beam to both Targets. We have steady 196uA beam, but the
    beam may still be fluctuating on and off for the next few hours. Update
    23:00hrs.


04 May 2026 17:59
    Next update @ 20:00


04 May 2026 17:58
    Machine setup is going fairly well, although a slight vacuum rise has been
    seen in the HEDS. Physicists are currently working on the issue and Beam
    maybe a bit intermittent until the problem is resolved.
    Any beamlines still requiring rad surveys will be done as soon as Beam is
    more stable.


04 May 2026 17:58
    Machine setup is going fairly well, although a slight vacuum rise has been
    seen in the HEDS. Physicists are currently working on the issue and Beam
    maybe a bit intermittent until the problem is resolved.
    Any beamlines still requiring rad surveys will be done as soon as Beam is
    more stable.


04 May 2026 16:09
    The issue with Modulator 3 has been fixed. Machine physicist started setup
    approximate 1 hour ago and has gone well so far. The Beam will slowly be
    increased in intensity and optimised to normal running levels.
    Update on progress @ 18:00


04 May 2026 13:50
    The Ion source is now fixed and running.
    
    We are currently experiencing problems with tank 3 filaments and an
    equipment expert is attending to investigate.
    
    Update in 2 hours.


04 May 2026 10:19
    Overnight we had an issue with one of the EPB 1 Dipole magnet power
    supplies, this has been fixed. The beam status page, which was not
    updating is also running correctly now.
    We are still having issues with the Ion Source, experts are in working on
    the problems currently.
    Update @ 14:00 or sooner if more information becomes available.


03 May 2026 23:04
    Machine Update:-
    
    We have a problem with EVB2 and the Ion source. Experts are on route to
    assist with repairs. Further updates will follow.