HL-LHC Hollow Electron Lens (production) kick-off meeting

Tuesday 13 Apr 2021, 08:30 → 18:00 Europe/Zurich

The scope of the meeting is to:

• validate the HEL functional specifications,
• delineate a HEL reference design (as a starting point to organise the work),
• describe the work break-down structure and responsibilities,
• give a first estimate on budget/resources,
• define what has to be done at CERN (and with what additional resources from in-kinds) and what can be outsourced including validation measurements, assembly and testing.

EDMS folder with all presentations and resources

HEL_kickoff_meeting_minutes&executive_summary.pdf

08:30 → 08:40 Introduction

Speaker: Oliver Bruning (CERN)

08:40 → 10:10 Definition of the specifications and of a reference design, and presentation of the work break-down structure and timeline

Document on Functional Specs to be circulated 2 wks in advance to check consistency with everybody’s talks and assumptions

08:40 HEL functional specification

Speaker: Stefano Redaelli (CERN)

2021-04-13_Functional-Specs_SRedaelli.pdf

09:10 HEL Overall Design

Speaker: Diego Perini (CERN)

2021-04-13_kick-off_Design_Perini.pdf

2021-04-13_kick-off_Design_Perini.pptx

09:30 HEL Organisation

• HEL Deliverables and Scope (including testing),
• Proposed Sub-WP organisation (meetings etc.) and reporting lines to WP5/HL-LHC,
• Timeline/planning and main milestones (including external design reviews etc.) – high level
• WBS and responsibilities, including in-kind.

Speaker: Adriana Rossi (CERN)

2021-04-13_HEL-KO_Organisation_Rossi.pdf

10:10 → 10:45 Coffee break

10:45 → 12:00 Technical design as seen by equipment owners/responsible and first estimates on resources

• What needs to be done : translation of FS into design main parameters
• What needs to be done in-house and what can be done as in-kind
• First estimate of resources required at CERN and from in-kind contributors (PJAS coming at CERN, profile to be specified), to be validated at a later TCC (in May/June)

10:45 Overview of vacuum (HEL + test stand) and validation required

Speakers: Giuseppe Bregliozzi (CERN), Marton Ady (CERN), Vincent Baglin (CERN)

TE-VSC Contribution

11:00 ABT/RF – Modulator + individual system tests

Speaker: Frank Gerigk (CERN)

RF-options-for-gun-modulator.pdf

11:15 Instrumentation (BPM and BGC) + individual systems tests

Speakers: Manfred Wendt (CERN), Raymond Veness (CERN), Thibaut Lefevre (CERN)

Beam Diagnostics for HEL-0421_modified.pdf

11:30 Electron Gun/Collector + individual systems tests and summary on resources for the Electron Beam Test Stand

Speaker: Adriana Rossi (CERN)

Rossi-HEL-KO_20210413-GunCollectorTestStand_modified.pdf

11:45 Discussion

12:00 → 13:30 Lunch Break

13:30 → 15:15 Technical design as seen by equipment owners/responsible and first estimates on resources

• What needs to be done : translation of FS into design main parameters
• What needs to be done in-house and what can be done as in-kind
• First estimate of resources required at CERN and from in-kind contributors (PJAS coming at CERN, profile to be specified), to be validated at a later TCC (in May/June)

13:30 Magnets, magnet detection and cryostating (A. Foussat, Mariusz Wozniak and Gerard Ferlin) and tests

Speaker: Arnaud Pascal Foussat (CERN)

HL Review HEL MAG_A_Foussat_2021-04-13 v4.pdf

HL Review HEL MAG_A_Foussat_2021-04-13 v4.pptx

14:00 Cryogenics integration in IR4

Cryogenic status of the HEL project foreseen at IR4

Speakers: Gerard Ferlin (CERN), Serge Claudet (CERN)

HEL_Kick-off_Cryo_GF_2021-04-13_modified.pdf

14:15 HEL powering system

Speaker: Michele Martino (CERN)

HEL_powering_13_04_2021_modified.pdf

14:30 Integration

Speaker: João Oliveira (CERN)

Hollow E-Lens Integration

14:45 HEL metrology assembly activities and alignment in IR4

Speaker: Jean-Frederic Fuchs (CERN)

2021-04-13_HEL_kick-off meeting-ASG_modified.pdf

15:00 Tunnel infrastructure, cabling, installation

Speakers: Adriana Rossi (CERN), Laurent Jean Tavian (CERN)

15:15 → 16:00 Coffee break

16:00 → 17:00 Measurements, tests and assembly

• Summary of what do we want to validate, and what needs to be tested
• Which tests to be done at CERN and what support required (PJAS and material), and what can be outsourced

16:00 What we need to test for the complete assembly. Testing in the tunnel or on surface? Pros and Cons.

Speaker: Adriana Rossi (CERN)

16:30 Discussion

17:00 → 18:00 Summary and Conclusion

• 30’ structured discussion and agreement on the missing points in the FS and when they are needed
• 30’ going through the technical open points and areas needing further study