Technical meeting #9 - Warm modules & RF insert

Thursday 3 Feb 2022, 09:00 → 17:00 Europe/Zurich

CERN

Giuseppe Bregliozzi (CERN)

EDMS link: 

https://edms.cern.ch/document/2677541/1

09:00 → 09:20 The LHC warm modules

o Existing warm module body
What do we have?
Which are the specification?
Which are the limitations?
Free length vs installation length

o Existing RF fingers
What do we have?
Which are the specifications?
Which are the limitations?
Electrical contact measurements
What do we need to improve?

Speakers: Josef Sestak (CERN), Vasco Martins (Universidade de Lisboa (PT))

LHC Warm Module EDMS Link

09:20 → 09:30 Discussion

09:30 → 09:50 DRF why and what: Overview of the design

General overview of the design
Cryogenic installation
o Which are the specifications for warm module body
o Which are the specification for the DRF

Room temperature area
o Which are the specification for warm module body
o Which are the specification for the DRF

Is there something that needs to be tested, developed or improved?

Speakers: Cedric Garion (CERN), Jaime Perez Espinos (CERN)

DRF design

09:50 → 10:00 Discussion

10:00 → 10:15 2021 Version: HL-LHC Layout integration

o What, where, why & FRAS
o Which are the specification required for each position?
o Which are the expected needs for the external envelope?
 Axial, radial and roll, free length, installation length, operation length: details requirements for each position

Speaker: Miguel Chastre Rodrigues (Universidade de Lisboa (PT))

EDMS link

10:15 → 10:20 Discussion

10:20 → 10:35 Coffee Break

10:35 → 10:55 First DRF prototype test

o What was done?
o Impedance impact vs angle (or height) vs installation length
o What is missing and what do we need to improve?
o What if we do not install the springs?
o Is there any needed tooling’s for the HL-LHC layout.
o Tooling for installtion

Speaker: Jan Hansen (CERN)

EDMS Link

10:55 → 11:00 Discussion

11:00 → 11:20 Status of new warm module drawings for production

The assumption used for the design:
1. External envelop: Free length, radial movement, axial movement, roll
2. DRF design
3. Standard new RF: new diameters
4. Status & planning

Speaker: Fabrice Santangelo (CERN)

EDMS Link

11:20 → 11:50 General discussion

14:00 → 14:20 Warm modules needs: LS2 vs LS3

o DRF needs
o Standard RF fingers
i. External bellow needs
ii. Internal needs
o Planning & spending profile

Speaker: Isabel Lopez Cuevas (Universidad de Oviedo (ES))

Warm modules needs LS2 vs LS3

14:20 → 14:40 Production plan

o Raw materials: what do we need
o Which strategy for the purchasing
o Production flow
o Planning

Speaker: Jan Hansen (CERN)

EDMS Link

14:40 → 14:50 Discussion

14:50 → 15:05 Cleaning & coating needs

o Is there anything to take into consideration?
o Improvement?
o Difficulties?
o Are there any special needs?
o Is there any special request for the projects?

Speaker: Leonel Marques Antunes Ferreira (CERN)

Cleaning & coating needs

15:05 → 15:25 Installation & maintenance

o What are the standard procedures followed for a warm module installation?
o What is the safety measure put in place?
o What’s the role and why and when performing Xrays?
o Problems encountered and discovered during the LS2
o QA, needed test, checks

Speakers: Eric Page (CERN), Julien Finelle (CERN)

LHC VM Installation and Maintenance

15:25 → 16:00 Coffee Break

16:00 → 16:30 Conclusions & Wrap-Up

o Summary of the main input from today presentation
o Specification and needs
o Outlook & follow up
o Planning for the future follow up meetings

Speakers: All, Giuseppe Bregliozzi (CERN), Jan Hansen (CERN)