2023 Operation

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dukwon
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2023 Operation

Post by dukwon » Fri Mar 17, 2023 10:55 am

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 LPC page: https://lpc.web.cern.ch/

This year the plan is 49 days of commissioning and intensity ramp, 97 days of pp physics from mid-May, 27 days of PbPb physics from late September.

Next YETS will start at the end of October due to the energy crisis.

Lumi targets are anywhere from 60 to 80 /fb for IP1&5, 7 /fb for IP8, 30 /pb for IP2.
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jmc2000
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Re: 2023 Operation

Post by jmc2000 » Mon Mar 20, 2023 7:05 pm

153rd LHCC Meeting - OPEN Session
https://indico.cern.ch/event/1254283/

Page 14 of the Status of Accelerator document shows 1.3fb/day for 2023, if I understand things correctly, an improvement from 1.1fb/day for 2022. I was under the impression that it was around 0.8fb/day in 2022.

Jmc

dukwon
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Re: 2023 Operation

Post by dukwon » Wed Mar 22, 2023 9:47 am

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.

dukwon
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Re: 2023 Operation

Post by dukwon » Tue Mar 28, 2023 9:25 am

Beam 1 threaded to IP5 before LBDS problems

Beam 2 successfully circulating
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lhc1.png

dukwon
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Re: 2023 Operation

Post by dukwon » Tue Mar 28, 2023 10:29 am

Both beams
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lhc1.png

dukwon
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Re: 2023 Operation

Post by dukwon » Wed Mar 29, 2023 8:41 pm

FIrst ramp of the year
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lhc1.png

dukwon
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Re: 2023 Operation

Post by dukwon » Wed Apr 05, 2023 2:45 pm

First collisions in 2023 with 450 GeV beams
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lhc1.png


M.
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Re: 2023 Operation

Post by M. » Thu Apr 13, 2023 9:26 am

First collisions at low-beta* - 1.2m.

Followed by the first beta* levelling with colliding beams from 1.2m down to 30cm in ATLAS and CMS.
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lhc1.png

M.
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Re: 2023 Operation

Post by M. » Fri Apr 21, 2023 11:03 pm

First Stable Beams @ 1.2m -> 30cm!

Now for the intensity ramp-up...
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lhc1.png

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