| TE-VSC, LHCb VeLo team |
Document and provide training to the relevant teams about the sequence of actions to be taken for the different failure scenarios of the VeLo vacuum system. |
✖ |
LHC Machine Committee (LMC #476) |
|
160
|
| SY-RF, HL-LHC, CONS |
Once the first high efficiency klystron prototype has been successfully tested, define a strategy for replacing operational or spare klystrons with high efficiency ones. |
✖ |
LHC Machine Committee (LMC #432) |
|
62
|
| BE-CEM, BE-OP, LHC CSAP, HSE-RP |
Revisit the safety procedures of the BLM validation campaign in view of autonomous TIM operation. |
✖ |
LHC Machine Committee (LMC #426) |
|
47
|
| Heat Load Task Force |
Investigate the history of humidity conditions in the tunnel during beam vacuum opening and RF ball tests, for the LS1, LS2 and any relevant (E)YETS and their correlation to high and low heat load sectors. |
✖ |
LHC Machine Committee (LMC #444) |
|
89
|
| BE-ICS |
Update report of the M580 PLC failure rate in 6 months time. |
✖ |
LHC Machine Committee (LMC #425) |
|
44
|
| Heat Load Task Force |
Investigation of the heat-load degradation observed in several cells after the LS2. |
✖ |
LHC Machine Committee (LMC #448) |
|
103
|
| LMC Chairs |
Consider a global coordination of information and issues related to bellows in the LHC machine. |
✖ |
LHC Machine Committee (LMC #477) |
|
161
|
| LMC Chairs, ATS management |
Decide on the cryogenic configuration for the 2024 ion run. |
✖ |
LHC Machine Committee (LMC #481) |
|
171
|
| TE dept |
Put in place a structure to review the RF finger issues involving all the stakeholders. |
✖ |
LHC Machine Committee (LMC #477) |
|
162
|
| TE-VSC, R2E, LBOC |
Report on observed vacuum activities in IR4 (5R4.B2) and its correlation with measured dose. |
✖ |
LHC Machine Committee (LMC #453) |
|
118
|
| MPP |
Comment on the possibility to test and operationally deploy blindable BLMs, in the injection region and in Point 7. |
✖ |
LHC Machine Committee (LMC #466) |
|
154
|
| SY-EPC, EN-EL, BE-OP-TI |
Clarify and communicate the procedure for turning on the SVCs after a trip. |
✖ |
LHC Machine Committee (LMC #465) |
|
149
|
| LBOC |
Collect, analyze and discuss the TCLD.11.R2.B1 related beam observations. |
✖ |
LHC Machine Committee (LMC #456) |
|
123
|
| ATS Safety Meeting |
Follow-up on SR buildings access constraints and co-activities during HWC. |
✖ |
LHC Machine Committee (LMC #480) |
|
169
|
| TE-VSC, EN-ACE |
Add the ZDCs constraints to the bake-out procedures and to scheduling planning. |
✖ |
LHC Machine Committee (LMC #479) |
|
166
|
| TDIS Task Force |
Report back the TDIS beam screen heating effects findings after summer 2023. |
✖ |
LHC Machine Committee (LMC #466) |
|
155
|
| LHC CSAP, BE-OP-TI |
Clarify access rules when the tunnel ventilation is in a degraded mode of operation. |
✖ |
LHC Machine Committee (LMC #465) |
|
151
|
| 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
|
| LHCb collaboration, IWG |
Follow up with the IWG of implications of the non-conformity of the VELO WFS, namely by exploring the possibility to inspect regularly the status of the WFS and the feasibility to repeat the cold welds test with electric current flowing on the WFS. |
✔ |
LHC Machine Committee (LMC #422) |
LHC Machine Committee (LMC #473) |
34
|
| LBOC |
Report back - before June 7th 2021 - on the updated Pilot Beam Test schedule. |
✔ |
LHC Machine Committee (LMC #413) |
LHC Machine Committee (LMC #416) |
7
|
| TE-VSC, EN-ACE |
Follow-up of the proposed mitigation measures to minimize the risk of accidental venting of the LHC vacuum sub-sectors. |
✔ |
LHC Machine Committee (LMC #412) |
LHC Machine Committee (LMC #470) |
8
|
| BE-OP-SPS |
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
|
| TE-VSC |
Report the results of the measurements in the cryogenic SEY/XPS setup when available. |
✔ |
LHC Machine Committee (LMC #411) |
LHC Machine Committee (LMC #444) |
10
|
| TE-MSC |
Report on the inspection of diodes of the spare magnets in the FLEX building. |
✔ |
LHC Machine Committee (LMC #424) |
LHC Machine Committee (LMC #451) |
43
|
| BE-ABP |
Evaluate the impact of the presently observed misalignment of the LHC lattice components on the machine apertures |
✔ |
LHC Machine Committee (LMC #410) |
LHC Machine Committee (LMC #452) |
11
|
| BE-ICS |
Report back on cryo PLCs related problems |
✔ |
LHC Machine Committee (LMC #409) |
LHC Machine Committee (LMC #412) |
13
|
| MP3 |
Report back in due time on the quench training analysis. |
✔ |
LHC Machine Committee (LMC #414) |
LHC Machine Committee (LMC #422) |
14
|
| EN-ACE, TE-MSC |
Report back on the advancement of the MB.B28L8 replacement. |
✔ |
LHC Machine Committee (LMC #416) |
LHC Machine Committee (LMC #420) |
16
|
| LHCb collaboration, TREX, TE-VSC |
Follow up with TREX for the preparation of procedures for possible interventions on the the VELO Wake Field Suppressor. |
✔ |
LHC Machine Committee (LMC #422) |
LHC Machine Committee (LMC #473) |
35
|
| 7 TeV Task Force |
Update on the predicted duration of the training in Sector 56 based on the latest observations. |
✔ |
LHC Machine Committee (LMC #421) |
LHC Machine Committee (LMC #424) |
33
|
| MoEDAL-MAPP Collaboration, BE-EA |
The MoEDAL-MAPP Collaboration should present the UA83 proposal to the LHCC for recommendation, and in parallel start the preparation of an ECR. |
✔ |
LHC Machine Committee (LMC #420) |
LHC Machine Committee (LMC #426) |
32
|
| 7 TeV Task Force |
Report back on the results of the analysis in due time. |
✔ |
LHC Machine Committee (LMC #420) |
LHC Machine Committee (LMC #424) |
31
|
| BE-ABP |
Analysis of degraded performance scenarios in case of triplet corrector failures. |
✔ |
LHC Machine Committee (LMC #419) |
LHC Machine Committee (LMC #449) |
30
|
| TE-MSC |
Update the estimated peak dose limits of the inner triplet and correctors magnets. |
✔ |
LHC Machine Committee (LMC #419) |
LHC Machine Committee (LMC #449) |
29
|
| MPP, LBOC |
Follow-up of the luminosity levelling strategy in 2022 and its staging by taking into account operational and Machine Protection constraints. |
✔ |
LHC Machine Committee (LMC #419) |
LHC Machine Committee (LMC #443) |
28
|
| EN-ACE, BE-OP |
Clarify impact of LHC schedule change on the Injector schedule. |
✔ |
LHC Machine Committee (LMC #416) |
LHC Machine Committee (LMC #419) |
17
|
| IT-CM |
Report back on the choice for a new Linux distribution after the Linux Future Committee of December 2021. |
✔ |
LHC Machine Committee (LMC #418) |
LHC Machine Committee (LMC #442) |
26
|
| IT Management, BE Management |
Review with the relevant BE and IT teams the technical, planning and resource constraints for the deployment of Option 4. |
✔ |
LHC Machine Committee (LMC #418) |
LHC Machine Committee (LMC #442) |
25
|
| MP3 |
Report back on observations on flattop quenches during the Sector 45 plateau test. |
✔ |
LHC Machine Committee (LMC #418) |
LHC Machine Committee (LMC #422) |
24
|
| MP3 |
Report back on the autopsy of the faulty diode in MB.A23R2. |
✔ |
LHC Machine Committee (LMC #418) |
LHC Machine Committee (LMC #424) |
23
|