Update 2024_lhc.md

docs/resources/logbook/2024_lhc.md

@@ -45,6 +45,7 @@ The tables below can be sorted by clicking next to the column headers.
 | 2024-09-19 08:45 | 2024-09-19 16:00 |    0.9W    | Commissioning |                     pp-Reference Commissioning                     | [Shift Plan](2024-09-19, 1081, 4146305){.logbook-link} / [Summary](2024-09-19, 1081, 4146652){.logbook-link} |
 | 2024-09-29 00:00 | 2024-09-29 08:00 |    1HN     |   MD 12723    |                        HL-LHC Optics Part 3                        | [Shift Plan](2024-09-29, 1081, 4152280){.logbook-link} / [Summary](2024-09-29, 1081, 4152429){.logbook-link} |
 | 2024-09-30 06:00 | 2024-09-29 15:00 |     1W     |    MD 9543    |                       Failing IR correctors                        | [Shift Plan](2024-09-30, 1081, 4152965){.logbook-link} / [Summary](2024-09-30, 1081, 4153286){.logbook-link} |
+| 2024-10-17 00:00 | 2024-10-17 03:00 |   0.5WN    |    MD 9405    |               Detuning at injection for instability                | [Shift Plan](2024-10-16, 1081, 4164879){.logbook-link} / [Summary](2024-10-17, 1081, 4164915){.logbook-link} |
 | 2024-10-19 08:30 | 2024-10-19 20:20 |    1.5H    |   MD 13883    |                   Optics with HV crossing plane                    |                             [Summary](2024-10-19, 1081, 4167403){.logbook-link}                              |
 
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@@ -76,5 +77,6 @@ The tables below can be sorted by clicking next to the column headers.
 *[pp-Reference Commissioning]: Injection: 10% bbeat - no correction; additional data w/ and w/o MO taken. Ramp: bbeat almost 20% - no correction. Flattop and Collision: bbeat 15% - global correction -> 5%.
 *[HL-LHC Optics Part 3]: Measurements and corrections through the squeeze: 84cm (ATS-Factor 3), with new arc-bumps in B1 and global corrections in B1 and B2 -> BBeat <20%. 43cm (ATS-Factor 6): Global corrections in B1 slightly above BBeat 20%, but B2 40% in Arc45 with no solution. Further squeeze not possible due to wrong rtqx2.l/r8 max current.
 *[Failing IR correctors]: At 60cm: Measured compensation of lost skew quad correctors with Coliniearity Knob. Measured the effect of the phase changing knob (from IR1 to IR5). Went to 30cm then trimmed out MCOX (made BBQ worse) and tried a prepared correction, worked fine. Also trimmed out the MCSSX B1 (larger bbeat, but acceptable) and trimmed in the MCSSX B2 for compensation (could not be fully trimmed due to corrector strength limits, trimmed as much as we could and measured). Kmod at flat-orbit w/o local IR 1 corrections. Orbit changes w/ and w/o local IR1 corrections and with changes in colinearity knob. Changed Q1L1 -> Kmod. Trimmed in knob for f1020 and measured.
+*[Detuning at injection for instability]: Looked into natural detuning at injection with a few kicks. Found small but non-zero detuning in both beams. Beam 2 might have second order detuning, to be looked into.
 *[Optics with HV crossing plane]: Measurements only at 60/18cm, with no time for corrections. On-off momentum measurements only for B2, as ACD went faulty for B1H. Max BBeat ~20% for B1H, 5% B1V and less than 10% for B2.
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