New year new beams
Search found 163 matches
- Fri Mar 08, 2024 12:43 pm
- Forum: The Accelerator
- Topic: 2024 Operation
- Replies: 3
- Views: 195
- Fri Aug 11, 2023 9:39 pm
- Forum: The Accelerator
- Topic: 2023 Operation
- Replies: 16
- Views: 57786
- Thu Aug 03, 2023 9:31 am
- Forum: The Accelerator
- Topic: 2023 Operation
- Replies: 16
- Views: 57786
Re: 2023 Operation
The repairs went well, and the cooldown is in progress. We expect beams back on 11th September: a few days of machine checkout, followed by low-intensity protons — VdM, high-beta, pp reference fun at 2.68 TeV — then ion run.
- Tue Jul 25, 2023 5:01 pm
- Forum: The Accelerator
- Topic: 2023 Operation
- Replies: 16
- Views: 57786
Re: 2023 Operation
The leak was indeed found on Monday (1.6 mm hole just about visible in the close-up pic below). Work is ongoing to replace the damaged bellow. Time is really critical, as the longer this intervention takes, the bigger the risk of damage to the cryo system. If it takes too long, the whole sector will...
- Mon Jul 24, 2023 5:13 pm
- Forum: The Accelerator
- Topic: 2023 Operation
- Replies: 16
- Views: 57786
Re: 2023 Operation
This sounds promising and suggests that they might not have to warm up the sector, but we will hear more in the next few days.
- Fri Jul 21, 2023 11:58 am
- Forum: The Accelerator
- Topic: 2023 Operation
- Replies: 16
- Views: 57786
Re: 2023 Operation
Vibration tests have shown an "a clear anomaly" at a particular interconnect, which is likely where the leak is. X-rays were performed at that location but were inconclusive. The current plan is to open up the W-bellow at that location on Monday and see what's there. The longer-term plan will depend...
- Thu Jul 20, 2023 1:46 pm
- Forum: The Accelerator
- Topic: 2023 Operation
- Replies: 16
- Views: 57786
Re: 2023 Operation
Rather than doing my own write-up: here's an official one
https://home.cern/news/news/accelerator ... leak-major
https://home.cern/news/news/accelerator ... leak-major
- Wed Jul 19, 2023 7:18 pm
- Forum: The Accelerator
- Topic: 2023 Operation
- Replies: 16
- Views: 57786
Re: 2023 Operation
On Sunday night the LHC experienced an electrical perturbation, causing an RF trip (P4) and several magnet quenches close to P8. As a consequence, the pressure in the insulation vacuum increased, which indicates a possible leak (unsure if it is air or Helium).
- Thu Apr 06, 2023 7:57 am
- Forum: The Accelerator
- Topic: 2023 Operation
- Replies: 16
- Views: 57786
- Wed Apr 05, 2023 2:45 pm
- Forum: The Accelerator
- Topic: 2023 Operation
- Replies: 16
- Views: 57786
Re: 2023 Operation
First collisions in 2023 with 450 GeV beams
- Wed Mar 29, 2023 8:41 pm
- Forum: The Accelerator
- Topic: 2023 Operation
- Replies: 16
- Views: 57786
Re: 2023 Operation
FIrst ramp of the year
- Tue Mar 28, 2023 10:29 am
- Forum: The Accelerator
- Topic: 2023 Operation
- Replies: 16
- Views: 57786
Re: 2023 Operation
Both beams
- Tue Mar 28, 2023 9:25 am
- Forum: The Accelerator
- Topic: 2023 Operation
- Replies: 16
- Views: 57786
Re: 2023 Operation
Beam 1 threaded to IP5 before LBDS problems
Beam 2 successfully circulating
Beam 2 successfully circulating
- Wed Mar 22, 2023 9:47 am
- Forum: The Accelerator
- Topic: 2023 Operation
- Replies: 16
- Views: 57786
Re: 2023 Operation
One of the new collimation crystals (installed at point 7 during YETS) is stuck in the beampipe. This will add a ~week delay to first beams.
Caverns are still closing today. Injection tests scheduled for Friday.
Caverns are still closing today. Injection tests scheduled for Friday.
- Fri Mar 17, 2023 10:55 am
- Forum: The Accelerator
- Topic: 2023 Operation
- Replies: 16
- Views: 57786
2023 Operation
Full 2023 schedule: https://edms.cern.ch/document/2785501 We are mid-way through the "hardware recommissioning" stage after YETS. This week have been powering tests, handshake tests, beam mode tests etc. From next week, you can follow along with the commissioning spreadsheet linked at the top of the...