Beam status

MCR News

25 May 2026 00:47
    Beam restored to TS2.


25 May 2026 00:30
    BEAM OFF - The on call equipment experts are on route to site to further
    investigate the fault with the extract kicker power supply.
    
    Update @ 01:30


25 May 2026 00:11
    BEAM OFF - The beam is off due to an issue with one of the extract kicker
    power supplies and we are in contact with equipment experts.
    
    Update @ 00:30.


24 May 2026 16:40
    Attention all Target Station 1 users:
    
    Unfortunately we are still having issues with the H2 Moderator. 
    
    Following the replacement of the cooler in the compressor the cool down
    was started early this morning. By mid afternoon we usually expect to see
    some liquid in the system, but we are seeing signs of contamination.
    Despite changing multiple parameters, the system was still showing no
    signs of dropping into full liquid, so we made the decision to abort the
    cool down and setup to purge again tomorrow, aiming for a 2nd attempt at
    cool down on Tuesday. Tomorrow will see Target staff onsite to begin the
    running purges after the system warms up overnight.


22 May 2026 18:41
    MS Beam has been restored to Target Station 2


22 May 2026 16:12
    The Ion source magnet flange has been removed, cleaned and reinstalled.
    The Ion source has been refitted and is pumping down. The Ion source
    specialists did find a damaged feed through socket for the Extractor feed
    which has also been replaced. Once we confirm the Extract break down
    issues have been resolved we will run up equipment and restore beam to TS2.
    
    Work has progressed as planned on the TS1 Kaeser compressor so we are
    still on track for beam Sunday evening.


22 May 2026 12:59
    Further to earlier messages, we have not been able to resolve the Ion
    source extract power supply breakdown issues. The diagnosis now is that
    the breakdowns are occurring around the magnet flange. This will need to
    be removed for cleaning which will take at least 8 hours. We do not
    anticipate beam to TS2 until later this evening and TS1 Sunday evening.


22 May 2026 11:34
    Dear all,
    
    The He compressor which services the H2 Moderator on TS1 tripped this
    morning.
    
    The team have already started with the repair of the compressor, which
    requires a replacement heat exchanger - this should be completed today.
    However, following the repair, the H2 cryogenic system will require a full
    purge and cool down.
    The purging will require ~24 hours, which would then allow for the cool
    down to commence on Sunday.
    Following this plan, we do not expect to see beam returning to TS1 until
    late on Sunday at the earliest.
    
    TS2 is unaffected by these works. 
    However, the Ion Source issues are still being resolved, which affects
    both TS1 and TS2.
    We will give updates on progress when we get more information


22 May 2026 11:14
    The machine is now off due to a problem with the Ion source extractor
    power supply. Controls specialists are investigating. We will update when
    we get more information.


22 May 2026 10:41
    We have resolved the issues with the Ion Source and it is running. We are
    currently doing some machine set up running to Target Station 2. There is
    currently an issue with Target Station 1 which our specialists are
    investigating. We will update on TS1 Status when we get more information.


22 May 2026 09:00
    The Ion source issues have been traced to a faulty controls crate on the
    Ion source platform. Our controls specialists are currently trying to
    source spares. Update at 11:00 Hours.


22 May 2026 07:08
    Experts are still working on the issue with the Ion Source. Appears to be
    a comms type problem.
    Update @ 09:00


22 May 2026 05:13
    Ion Source is currently non-operational, expert is on route to the Lab.
    Update @ 07:00


22 May 2026 04:32
    BEAM OFF
    
    We are currently experiencing problems with the ION source. Equipment
    experts have been contacted.
    
    Update at 05:30


21 May 2026 12:24
    Beam is currently off whilst we investigate a diagnostics problem in the
    Inner Synchrotron. We hope to restore beam within an Hour.


20 May 2026 21:13
    Machine update:-
    
    MS beam restored to both target stations. Intensity is slightly lower to
    allow the source to settle overnight, and will be increased in the morning.


20 May 2026 08:31
    Maintenance day started at 08:30.


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