Crab Cavity HOM Coupler Design & Fabrication Review II

Wednesday 25 Feb 2015, 08:30 → 23:05 US/Eastern

376/1-020 (CERN)

Alessandro Ratti (Lawrence Berkeley National Lab. (US)), Rama Calaga (CERN)

This review is to assess the readiness for fabrication of the HOM couplers and high pass filters for the two designs of the Crab Cavities for the HL-LHC and will be used in the validation tests in the SPS. We will cover the fabrication, assembly, surface preparation and tuning plans for each device, including eventual high power conditioning. Comments on the electromagnetic designs following the internal review held in December will also be presented. A no host dinner will be organized in the evening for those who are staying overnight and all locals who are available to join

Technical Review Report - HOM Couplers FINAL 20MAR2015.docx

Technical Review Report - HOM Couplers FINAL 20MAR2015.pdf

Review Charge Review Charge

08:30 → 09:30 HOM Coupler RF Designs

08:30 Introduction Comments

Speakers: Alessandro Ratti (Lawrence Berkeley National Lab. (US)), Rama Calaga (CERN)

Slides ImpBudgetComment.pdf

08:40 Double Quarter Wave HOM Coupler Update

Speaker: Binping Xiao (Brookhaven National Lab)

Slides DQWCC_HOM_review_Feb2015.pdf DQWCC_HOM_review_Feb2015.pptx

08:55 RF Dipole HOM Couplers Update

Speaker: Payagalage De Silva (Old Dominion University (US))

Slides 2015-02-25-RF_Dipole_HOM_E&M_Design.pptx

09:10 Specification Drawings & Tolerances

Speaker: Niklas Templeton (STFC)

notes 253-10420-B.pdf 253-10520-B.pdf

Slides tdl-1165-meng-prs-0016-v1-_HOM_Coupler_Specification_Drawings_&_Tolerances.pdf tdl-1165-meng-prs-0016-v1-_HOM_Coupler_Specification_Drawings_&_Tolerances.pptx

09:30 → 12:30 HOM Coupler Fabrication Drawings

09:30 DQW & RFD Mechanical Design

i) Introduction on Cryomodules ii) DQW Mechanical Design, RFD Mechanical design iii) Feedthrough Principle iv) DQW prototype – Feasibility / Manufacturing – Assembly sequence

Speaker: Teddy Capelli (CERN)

Slides HOM_Review-Mechanical_design_Teddy.pdf HOM_Review-Mechanical_design_Teddy.pptx

10:30 DQW Analysis & Manufacturing

i) DQW – Calculation results ii) CERN Tests

Speaker: Marco Garlasche (CERN)

Slides HOM_Review-Calculations_Marco.pdf HOM_Review-Calculations_Marco.pptx

11:15 RFD Analysis & Manufacturing

i) RFD – Calculation results ii) RFD – Feasibility / Manufacturing – Assembly sequence

Speakers: Hye Kyoung Park (ODU/Jefferson Lab), Teddy Capelli (CERN)

Slides RF_dipole_HOM_coupler_thermal_and_pressure_analysis_-_February_25,_2015_-_TNicol.pdf RF_dipole_HOM_coupler_thermal_and_pressure_analysis_-_February_25,_2015_-_TNicol.pptx

12:00 HOM Test Box

Speaker: Dr Graeme Burt (Lancaster University)

Slides HOM_Test_Box_(final).pdf HOM_Test_Box_(final).pptx

12:20 Discussion

12:30 → 13:30 Lunch

13:30 → 16:00 RF Optimization, Testing & Quality Control

13:30 RF, Filter Optimization & Quality Control, DQW

Speakers: Binping Xiao (Brookhaven National Lab), Qiong Wu (Brookhaven National Lab)

Slides DQWCC_HOMreview_QA_Wu_Feb2015.pdf DQWCC_HOMreview_QA_Wu_Feb2015.pptx

14:00 RF, Filter Optimization & Quality Control, RFD

Speakers: Hye Kyoung Park (ODU/Jefferson Lab), Subashini De Silva (Old Dominion University (US))

Slides RFD_HOM_-fabrication.pdf RFD_HOM_-fabrication.pptx

14:30 Thermal Modeling of DQW Filter

Speaker: Dr Graeme Burt (Lancaster University)

Slides Thermal_modelling_DQW_GBurt.pdf Thermal_modelling_DQW_GBurt.pptx

14:50 Dressed Cavity Analysis, DQW

Speaker: Teddy Capelli (CERN)

Slides Helium_vessel_crab_25-02-2015_v2.pdf Helium_vessel_crab_25-02-2015_v2.pptx

15:10 Dressed Cavity Analysis, RFD

Speaker: Thomas Nicol (Fermilab)

Slides RF_dipole_pressure_analysis_update_-_February_25,_2015_-_TNicol.pdf RF_dipole_pressure_analysis_update_-_February_25,_2015_-_TNicol.pptx

15:30 Discussion

16:00 → 18:00 Committee Closed Session

Convener: Vyacheslav Yakovlev (FNAL)