HL-LHC Inner Triplet BPMs conceptual design review

Thursday 17 May 2018, 14:00 → 17:30 Europe/Zurich

866/2-D05 (CERN)

The aim of the meeting is to check that

• the absorption of particle debries and cooling are as required

• the alignment references and precision are agreed

• synergies of the Beam Screen and BPM design are optimum

• the integration is possible and responsibilities are clear

• the deliverable to the IT String test are agreed

• the design of the BPM is sound and ready for detailed drawings

• the planning up to date

1 Welcome to the review

Objectives of the review

Speakers: Raymond Veness (CERN), Rhodri Jones (CERN)

HL BPM - Internal Review - May 2018.pdf

HL BPM - Internal Review - May 2018.pptx

2 Cryostating and integration (15' + 5')

• Assembly concept of all lines
• Cryomagnet interconnection
• Space allocations
• Integration challenges to be addressed

Speaker: Delio Duarte Ramos (CERN)

1805117 Integration of BPM in triplet.pdf

1805117 Integration of BPM in triplet.pptx

3 Beam screen design (15' + 5')

• Tungsten supply, machining and attachment
• Estimated mechanical tolerances
• Cooling tube design and attachment
• Interconnect design and alignment
• Welding

Speaker: Cedric Garion (CERN)

HL_LHC_BPM_review_beam_screen_CG.pdf

HL_LHC_BPM_review_beam_screen_CG.pptx

4 Inner Triplet String Test (15' + 10')

• Layout of the String test
• Prototypes and magnets for installation
• Arrival schedule of cryomagnets
• Expected add-ons: Beam screens, BPMs, ....

Speaker: Marta Bajko (CERN)

HL-LHC STRing for BPM review.pdf

HL-LHC STRing for BPM review.pptx

5 Summarise calculations for BPM absorption of debries and cooling requirements; BPM electrode design (20' + 5')

• Particle debris absorption
• Cooling
• Alignment of tungsten blocks
• Design of BPM electrodes

Speaker: Michal Krupa (CERN)

20180517_bpm_thermal_and_electrode.pdf

20180517_bpm_thermal_and_electrode.pptx

6 BPM design, integration, alignment and planning (20' + 10')

• Materials
• Cooling
• Manufacture
• Integration and alignment
• Planning

Speakers: Gerhard Schneider (CERN), Michal Krupa (CERN), Nicolas Sebastien Chritin (CERN)

HL LHC BPM IT Design Review BPM design integration and planning 2018-05-17_v2.pdf

HL LHC BPM IT Design Review BPM design integration and planning 2018-05-17_v2.pptx

16:00 Coffee/Tea break

7 Discussion and Wrap up (60')

• Does the BPM design fulfil the functional requirements?
• Is the BPM construction concept similar in points of tungsten absorbers and cooling to the beam screen?
• Can we agree on String deliverables?
• Is the planning in agreement with the requirements?
• Is the BPM concept, materials, design, alignment and integration sound?
• Are all system boundaries clear and agreed?

Other open issues