| 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
|
| 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
|
| LHCb collaboration |
Report on the results of the cold weld tests carried out with EN-MME-MM. |
✔ |
LHC Machine Committee (LMC #422) |
LHC Machine Committee (LMC #473) |
36
|
| MP3 |
Report on the quench analysis at the end of the quench training campaign. |
✔ |
LHC Machine Committee (LMC #422) |
LHC Machine Committee (LMC #438) |
37
|
| EN-EL, BE-OP, EN-ACE, SY-RF |
To define a new date for the SR4 transformer replacement (after the Pilot Beam Test). |
✔ |
LHC Machine Committee (LMC #422) |
LHC Machine Committee (LMC #426) |
38
|
| SY-RF |
Report back on the America RF module performance and the final proposal for the Asia RF module pumping cross exchange (after the Pilot Beam Test). |
✔ |
LHC Machine Committee (LMC #417) |
LHC Machine Committee (LMC #425) |
18
|
| LMC Chairs |
Call for a meeting to assess the risk mitigation measures for the LS2 training campaign. |
✔ |
LHC Machine Committee (LMC #417) |
LHC Machine Committee (LMC #420) |
19
|
| MP3 |
Report on Sector 78 predictions after the experience of the training of the other sectors. |
✔ |
LHC Machine Committee (LMC #417) |
LHC Machine Committee (LMC #422) |
20
|
| SY-STI |
Report back on the preferred option (internal or external contract) for the ex-operational B1 dump autopsy. |
✔ |
LHC Machine Committee (LMC #417) |
LHC Machine Committee (LMC #426) |
21
|
| MP3 |
Report back on the 11850 A flattop observations of the Sector 45 RB circuit. |
✔ |
LHC Machine Committee (LMC #417) |
LHC Machine Committee (LMC #422) |
22
|
| EN-CV |
Report back on dump window leak tests and updated installation plans. |
✔ |
LHC Machine Committee (LMC #433) |
LHC Machine Committee (LMC #434) |
66
|
| AION-100 collaboration |
Present an ECR for the probe installation in the PX46 shaft. |
✔ |
LHC Machine Committee (LMC #433) |
LHC Machine Committee (LMC #435) |
67
|
| EN-CV |
Report on the results of the water pollution analysis in Point 4. |
✔ |
LHC Machine Committee (LMC #433) |
LHC Machine Committee (LMC #434) |
68
|
| HL LHC PSO |
Report back on the decision taken following the request to disable the UPR air-suction-type detectors in Point 1 and 5. |
✔ |
LHC Machine Committee (LMC #433) |
LHC Machine Committee (LMC #434) |
69
|
| 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) |
LHC Machine Committee (LMC #503) |
62
|
| LHC CSAP |
Evaluation of the implications of the proposed change of the UX451 access system. |
✔ |
LHC Machine Committee (LMC #432) |
LHC Machine Committee (LMC #455) |
63
|
| EN-AA |
Report on whether dust may affect the ODH sensors efficiency. |
✔ |
LHC Machine Committee (LMC #432) |
LHC Machine Committee (LMC #433) |
64
|
| BE-GM, EN-ACE, TE-CRG |
Improve the planning of future LHC alignment campaigns of cold components. |
✔ |
LHC Machine Committee (LMC #432) |
LHC Machine Committee (LMC #433) |
65
|
| EN-ACE |
Follow-up on the cause of the Point 5 evacuation alarm on November 30th 2021. |
✔ |
LHC Machine Committee (LMC #429) |
LHC Machine Committee (LMC #430) |
55
|
| EN-EL |
Follow-up on the recent UPS incidents. |
✔ |
LHC Machine Committee (LMC #429) |
LHC Machine Committee (LMC #430) |
56
|
| LBOC |
Follow-up the 10 Hz oscillations studies, by evaluating the specificity of the Q6R2 and its operational settings and investigate possible mitigation measures. |
✔ |
LHC Machine Committee (LMC #429) |
LHC Machine Committee (LMC #478) |
57
|
| LBOC |
Based on Run 2 statistics, analyze the probability and consequences of accidental head-on collisions in LHCb and, if possible, put in place actions to limit them in future. |
✔ |
LHC Machine Committee (LMC #429) |
LHC Machine Committee (LMC #462) |
58
|
| SY-STI |
Evaluate the beneficial impact of a tungsten shield to reduce the total dose on the IR8 warm compensators. |
✔ |
LHC Machine Committee (LMC #429) |
LHC Machine Committee (LMC #449) |
59
|
| 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
|
| 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
|