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Sep 9, 2025
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Update 2025_lhc.md #203

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Update 2025_lhc.md
emaclean Sep 8, 2025
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fix anchors
fsoubelet Sep 9, 2025
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use be-op-logbook.web.cern.ch
fsoubelet Sep 9, 2025
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25 changes: 14 additions & 11 deletions docs/logbook/LHC/2025_lhc.md
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Expand Up @@ -30,10 +30,11 @@ The tables below can be sorted by clicking next to the column headers.
| 2025-04-21 17:30 | 2025-04-22 06:00 | 1.6HN | Commissioning | IRNL 1.2m and 18cm | [Shift Start](logbook://2025-04-21,1081,4240651) / [Summary](logbook://2025-04-22,1081,4240898) ([OP][op_irnl_1p2_18]{.cern_login target=_blank}) |
| 2025-04-24 13:00 | 2025-04-25 03:30 | 0.6W 1WN | Commissioning | Global Corrs at 60cm and 18cm and Validation | [Shift Start](logbook://2025-04-24,1081,4243122) / [Summary](logbook://2025-04-25,1081,4243700) ([OP][op_global_corrs_60cm_18cm]{.cern_login target=_blank}) |
| 2025-04-27 07:30 | 2025-04-27 23:30 | 1H 1HN | Commissioning | Validation of Everything | [Shift Start](logbook://2025-04-27,1081,4245465) / [Summary](logbook://2025-04-27,1081,4245531) ([OP][op_validation_everything]{.cern_login target=_blank}) |
| 2025-05-07 20:00 | 2025-05-08 07:30 | 1.5WN | Commissioning | Ion Optics Part 1 | [Shift Start](logbook://2025-05-07,1081,4257152) / [Summary](logbook://2025-05-08,1081,4257277) ([OP][op_ion_optics_part1]{.cern_login target=_blank}) |
| 2025-05-18 13:00 | 2025-05-18 19:00 | 0.5H 0.25HN | Commissioning | Ion Optics Part 2 | [Shift Start](logbook://2025-05-18,1081,4295338) / [Summary](logbook://2025-05-18,1081,4295555) ([OP][op_ion_optics_part2]{.cern_login target=_blank}) |
| 2025-05-07 20:00 | 2025-05-08 07:30 | 1.5WN | Commissioning | Pb Ion Optics Part 1 | [Shift Start](logbook://2025-05-07,1081,4257152) / [Summary](logbook://2025-05-08,1081,4257277) ([OP][op_ion_optics_part1]{.cern_login target=_blank}) |
| 2025-05-18 13:00 | 2025-05-18 19:00 | 0.5H 0.25HN | Commissioning | Pb Ion Optics Part 2 | [Shift Start](logbook://2025-05-18,1081,4295338) / [Summary](logbook://2025-05-18,1081,4295555) ([OP][op_ion_optics_part2]{.cern_login target=_blank}) |
| 2025-06-12 13:30 | 2025-06-12 22:30 | 0.5W 0.6WN | Commissioning | Pb/pO Ion Optics | [Shift Start](logbook://2025-06-12,1081,4314767) / [Summary](logbook://2025-06-12,1081,4383876) ([OP][op_po]{.cern_login target=_blank}) |
| 2025-06-13 16:30 | 2025-06-13 20:00 | 0.2W 0.3WN | Commissioning | Hierarchy breaking investigation at Injection | [Shift Start](logbook://2025-06-13,1081,4315743) / [Summary](logbook://2025-06-13,1081,4315800) ([OP][op_hierarchy_breaking_injection]{.cern_login target=_blank}) |
| 2025-06-16 13:20 | 2025-06-16 16:00 | 0.4W | Commissioning | Ion Optics Part 3 | [Shift Start](logbook://2025-06-16,1081,4317342) |
| 2025-06-16 13:20 | 2025-06-16 16:00 | 0.4W | Commissioning | pO/Pb ramp validation | [Shift Start](logbook://2025-06-16,1081,4317342) |
| 2025-06-21 23:00 | 2025-06-22 07:00 | 1HN | MD15463 | LRBB compensation with flat-optics | [Shift Start](logbook://2025-06-21,1081,4321399) / [Summary](logbook://2025-06-21,1081,4324656) ([OP][op_lrbb_comp_flat_optics]{.cern_login target=_blank}) |
| 2025-06-22 04:00 | 2025-06-22 13:00 | 1.1HN | MD15146 | Rematched IR7 optics | [Shift Start](logbook://2025-06-22,1081,4322198) / [Summary](logbook://2025-06-22,1081,4322924) ([OP][op_rematched_ir7]{.cern_login target=_blank}) |
| 2025-06-22 15:40 | 2025-06-22 20:40 | 0.5H | MD14963 | MO detuning | [Shift Start](logbook://2025-06-22,1081,4322659) / [Summary](logbook://2025-06-22,1081,4322924) |
Expand All @@ -42,18 +43,19 @@ The tables below can be sorted by clicking next to the column headers.
<!-- Logbook Links: [LINK_NAME](logbook://date, logbook_id, event_id) -->

<!-- OP logbook links below -->
[op_inj_global_corrs]: https://logbook.cern.ch/elogbook-server/GET/showEventInLogbook/4231196
[op_coupling_squeeze_dee]: https://logbook.cern.ch/elogbook-server/GET/showEventInLogbook/4232255
[op_injection_and_ramp]: https://logbook.cern.ch/elogbook-server/GET/showEventInLogbook/4234178
[op_inj_global_corrs]: https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4231196
[op_coupling_squeeze_dee]: https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4232255
[op_injection_and_ramp]: https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4234178
[op_meas_squeeze]: https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4235053
[op_adt_phaseknob_60cm_aba_18cm]: https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4238986
[op_nrj_shift_nl18_local]: https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4239646
[op_nl_inj_irnl_18]: https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4240099
[op_irnl_1p2_18]: https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4240983
[op_global_corrs_60cm_18cm]: https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4243717
[op_validation_everything]: https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4245973
[op_ion_optics_part1]: https://logbook.cern.ch/elogbook-server/GET/showEventInLogbook/4258231
[op_ion_optics_part2]: https://logbook.cern.ch/elogbook-server/GET/showEventInLogbook/4295553
[op_ion_optics_part1]: https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4258231
[op_ion_optics_part2]: https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4295553
[op_po]:https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4315094
[op_hierarchy_breaking_injection]: https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4315806
[op_lrbb_comp_flat_optics]: https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4321626
[op_rematched_ir7]: https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/4322475
Expand All @@ -71,10 +73,11 @@ The tables below can be sorted by clicking next to the column headers.
*[IRNL 1.2m and 18cm]: Validated on/off Momentum at 120cm, and 18cm. Checked sdisp qbump, which did not seem to work. Nonlinear corrections at 18cm: b4, a4 (performed and tested) b3, a3 (only measured/calculated).
*[Global Corrs at 60cm and 18cm and Validation]: Tested SDisp knobs and did a first squeeze down to 18cm with global corrections calculated and incorporated at 60cm and 18cm. Beam dumped twice because of IR5. Validation only up to 4.5TeV but also couldn't kick high.
*[Validation of Everything]: Validated 120cm, 93cm, 60cm, 44cm, 30cm, 24cm, 18cm. Too many k-mods. Waistshift and beta-star beating at 18cm. Tried to find better corrections, but dumped before verifying.
*[Ion Optics Part 1]: Validation of ion optics, injection, ramp flattop. Ramp AC-Dipole issues in Beam1. Corrections (aba-coupling, global) at 50cm/100cm.
*[Ion Optics Part 2]: Ramp measurements, with ACD and ADT. Flat-top measurements testing aba-coupling correction from 50cm and IP2 kmod for waist knob. End of squeeze, IP2 waist knob setting, kmod all IPs, testing IP8 waist knob for B1 horizontal.
*[Pb Ion Optics Part 1]: Validation of ion optics, injection, ramp flattop. Ramp AC-Dipole issues in Beam1. Corrections (aba-coupling, global) at 50cm/100cm.
*[Pb Ion Optics Part 2]: Ramp measurements, with ACD and ADT. Flat-top measurements testing aba-coupling correction from 50cm and IP2 kmod for waist knob. End of squeeze, IP2 waist knob setting, kmod all IPs, testing IP8 waist knob for B1 horizontal.
*[Pb/pO Ion Optics]: Measured in ramp and FT on PbPb cycle as setup for pO. Tested corrections and did Kmod. B1 betabeat brought down to <15% in ramp and improvement to betastar beat at FT. B2 degraded, found new correction at FT which improved betastar beat at IP2 and IP8 as well as waist shift at IP8. Applied pO crossing scheme, found knobs wrongly defined. Fixed. Need another fill for validation.
*[Hierarchy breaking investigation at Injection]: Off-momentum measurements up to +300Hz for chromatic beta-beating. Chromatic coupling correction for B1. At +300Hz measurements with and without MO at 10A. No time available for ion commissioning.
*[Ion Optics Part 3]: Ramp measurements. Corrections improved beta-beating at 6.3TeV. Various issues with TCDQ and BLM in P6, no measurements throught the squeeze.
*[pO/Pb ramp validation]: Ramp measurements. Corrections improved beta-beating at 6.3TeV. Various issues with TCDQ and BLM in P6, no measurements throught the squeeze.
*[LRBB compensation with flat-optics]: Optics measurements of pilots in B1, in collision with nominals in B2, at 60/18cm. Large beta-beating for the bunch with LR vs the reference. Measurement of sextupole and octupole resonances. Correction of 4Qx and 4Qy from LRBB with MCOX. Correction of 3Qy from LRBB with MCSSX. Measurement with smaller crossing angle and observation of increase in beta-beating for the LRBB bunch.
*[Rematched IR7 optics]: Optics measurements during the ramp and FT, with the rematched IR7 optics. B1 large beta-beating above 4.5TeV and large local phase error in IR7. B2 was ok. New global corrections at flat-top for B1 and validation throught the ramp with a second fill.
*[MO detuning]: Measurements of amplitude detuning with several settings of the MO, as input to Massimo/Dora's cleaning MD.
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