| BE-OP |
Investigate if the two weeks planned for the 2026 HWC campaign can be further reduced. |
✖ |
LHC Machine Committee (LMC #503) |
|
202
|
| SY-STI |
Investigate the impact of both H and V crossing plane options on the TCL mitigation strategy for LHCb. Report back to LMC in view of possible TCL procurement by the end of 2025. |
✖ |
LHC Machine Committee (LMC #502) |
|
201
|
| ATS groups |
Remind all personnel about the strict prohibition of crossing safety barriers and fences, and reiterate the necessity of adhering to all safety protocols. |
✔ |
LHC Machine Committee (LMC #501) |
LHC Machine Committee (LMC #502) |
200
|
| SY-RF |
Report back on M1B2 cryomodule performance with beam. |
✖ |
LHC Machine Committee (LMC #501) |
|
199
|
| LBOC |
Following the recommendation of the Edge-Welded Bellows Task Force, ensure that the stroke of all LHC equipment is reduced to the minimum necessary. |
✖ |
LHC Machine Committee (LMC #500) |
|
198
|
| TE-MPE |
Provide BE-OP with a complete picture of the various versions of QPS cards installed for the 2025 run, including their location, and follow agreed procedures for future modifications. |
✖ |
LHC Machine Committee (LMC #500) |
|
197
|
| TE-MPE |
Document the recent QPS system changes in a dedicated ARR. |
✔ |
LHC Machine Committee (LMC #499) |
LHC Machine Committee (LMC #500) |
194
|
| LBOC |
Prepare options and procedures for mitigating a failure of the first D1 module and report back to the LMC in due time. |
✔ |
LHC Machine Committee (LMC #499) |
LHC Machine Committee (LMC #501) |
196
|
| BE-OP, TE-MPE, MP3 |
Validate the recent QPS system changes during the 2025 HWC campaign. |
✖ |
LHC Machine Committee (LMC #499) |
|
195
|
| TE-MPE |
Report back on the recent QPS events in due time. |
✔ |
LHC Machine Committee (LMC #498) |
LHC Machine Committee (LMC #499) |
192
|
| ATS groups |
Check which sectors will be baked out during the EYETS 2024-25 and ensure that there is no impact on their equipment in these regions. |
✔ |
LHC Machine Committee (LMC #498) |
LHC Machine Committee (LMC #499) |
193
|
| BE-OP |
Report back the final 2025 schedule and the updated 2026 draft. |
✔ |
LHC Machine Committee (LMC #497) |
LHC Machine Committee (LMC #499) |
189
|
| SY-EPC |
Report back on the anomalies suspected on the circuit for RQ5.LR3. |
✔ |
LHC Machine Committee (LMC #497) |
LHC Machine Committee (LMC #498) |
190
|
| BE-ABP |
Report back in due time about the flat optics segment of the LHC 2025-26 configuration. |
✔ |
LHC Machine Committee (LMC #497) |
LHC Machine Committee (LMC #499) |
191
|
| LPC |
Report in due time on the potential of an intermediate solution between Scenario B and C, taking into account an 11 weeks YETS and the effect on the cooldown time for the p-Pb run. |
✔ |
LHC Machine Committee (LMC #496) |
LHC Machine Committee (LMC #499) |
188
|
| SY-EPC, TE-CRG |
Report back on the investigation about the correlation between the SVC re-activation and the cryo problem in Point 8. |
✔ |
LHC Machine Committee (LMC #494) |
LHC Machine Committee (LMC #503) |
187
|
| ATS groups |
Provide input on Radiation Resistant Cable requirements to EN-EL by 14 October. |
✔ |
LHC Machine Committee (LMC #493) |
LHC Machine Committee (LMC #494) |
186
|
| BE-OP |
Prepare a plan for an optimal use of the machine time if the repair of the compressor in Point 6 has to be performed sooner than currently scheduled. |
✔ |
LHC Machine Committee (LMC #492) |
LHC Machine Committee (LMC #493) |
185
|
| SY-ABT |
Report back to the LMC on the consolidation proposal for the AC dipole and the possibilities for its upgrade for the HL-era. |
✖ |
LHC Machine Committee (LMC #492) |
|
184
|
| EN-EL |
Clarify the AUG specification procedure and stakeholder involvement for areas involving experiments. |
✖ |
LHC Machine Committee (LMC #491) |
|
183
|
| LBOC |
Track down the root causes of the observed lifetime improvement during the cycle before Stable Beams. |
✔ |
LHC Machine Committee (LMC #490) |
LHC Machine Committee (LMC #501) |
182
|
| SY-BI, HSE-RP |
Investigate the possibility to install additional instrumentation to identify the source of muons for the FASER and SND background. |
✔ |
LHC Machine Committee (LMC #487) |
LHC Machine Committee (LMC #489) |
179
|
| EN-MME, TE-VSC |
Report back on the warm module x-rays performed during TS1. |
✔ |
LHC Machine Committee (LMC #487) |
LHC Machine Committee (LMC #488) |
180
|
| EN-EL, TE-VSC |
Investigate a redundant solution to ensure the availability of the pumping of the insulation vacuum of the Point 5 triplet. |
✖ |
LHC Machine Committee (LMC #487) |
|
181
|
| LBOC, BE-ABP, SY-STI |
Study mitigation strategies to reduce FASER and SND background. |
✔ |
LHC Machine Committee (LMC #487) |
LHC Machine Committee (LMC #501) |
178
|
| Task force on the Edge Welded Bellows |
Report to the Committee the present status of the investigation. |
✔ |
LHC Machine Committee (LMC #486) |
LHC Machine Committee (LMC #500) |
177
|
| LBOC, MPP |
Evaluate if a minimum set of validation checks is required after the polarity changes of LHCb spectrometers. |
✔ |
LHC Machine Committee (LMC #486) |
LHC Machine Committee (LMC #501) |
175
|
| BE-OP, SY-BI |
Commission blindable BLMs in the injection region (Point 2 and /оr 8). |
✖ |
LHC Machine Committee (LMC #486) |
|
176
|
| BE-OP |
Explore the possibility to verify SPS transverse bunch oscillation before extraction to the LHC. |
✔ |
LHC Machine Committee (LMC #484) |
LHC Machine Committee (LMC #485) |
174
|
| LBOC, MPP |
Depending on the 2024 operational experience with the TDIS temperature interlock, define a strategy for the TDIS opening throughout the operational cycle to maximize the bellow lifetime, with input from SY-STI and IWG. |
✔ |
LHC Machine Committee (LMC #483) |
LHC Machine Committee (LMC #484) |
173
|
| LS3C |
Follow-up on the return of experience of the YETS 2023-24 and items remaining from YETS 2022-23. |
✖ |
LHC Machine Committee (LMC #482) |
|
172
|
| LBOC |
Report back on the final choice of the initial collision beta* for the 2024 pp run. |
✔ |
LHC Machine Committee (LMC #481) |
LHC Machine Committee (LMC #483) |
170
|
| LMC Chairs, ATS management |
Decide on the cryogenic configuration for the 2024 ion run. |
✔ |
LHC Machine Committee (LMC #481) |
LHC Machine Committee (LMC #493) |
171
|
| ATS Safety Meeting |
Follow-up on SR buildings access constraints and co-activities during HWC. |
✖ |
LHC Machine Committee (LMC #480) |
|
169
|
| SY-ABT, TE-VSC |
Report back on the final solution for operating the vacuum interlock of the MKIs in 2024. |
✔ |
LHC Machine Committee (LMC #479) |
LHC Machine Committee (LMC #481) |
168
|
| TREX, LS3C |
Propose a strategy for an optimal information flow to coordinate machine and experiment activities during the long shutdowns and end of year stops. |
✔ |
LHC Machine Committee (LMC #479) |
LHC Machine Committee (LMC #483) |
167
|
| IWG, BE-ABP |
Report back on limits for MDs in 2024, after the input from LSWG is received. |
✔ |
LHC Machine Committee (LMC #479) |
LHC Machine Committee (LMC #485) |
165
|
| TE-VSC, EN-ACE |
Add the ZDCs constraints to the bake-out procedures and to scheduling planning. |
✖ |
LHC Machine Committee (LMC #479) |
|
166
|
| LMC |
Define a strategy for increasing bunch intensity in 2024. |
✔ |
LHC Machine Committee (LMC #478) |
LHC Machine Committee (LMC #479) |
164
|
| TE dept |
Put in place a structure to review the RF finger issues involving all the stakeholders. |
✔ |
LHC Machine Committee (LMC #477) |
LHC Machine Committee (LMC #503) |
162
|