Crab Cavities 302 3 01 RFD Cavities Integration

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Crab Cavities 302. 3. 01 RFD Cavities Integration Coordination Leonardo Ristori – Fermilab L

Crab Cavities 302. 3. 01 RFD Cavities Integration Coordination Leonardo Ristori – Fermilab L 2 Manager – RFD Dressed Crab Cavities Fabrication HL-LHC AUP IPR DOE/SC Review – Jan. 14 th– 16 th 2020

Outline § § § § § Scope Requirements Design Integration and Coordination Aspects Cost

Outline § § § § § Scope Requirements Design Integration and Coordination Aspects Cost and Schedule Performance Estimate at Completion Risks Plans for CD-3 c Summary HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 2

RFD Crab Cavity WBS Charge 4 US-Hi. Lumi-doc-104 This Talk HL-LHC AUP IPR DOE/SC

RFD Crab Cavity WBS Charge 4 US-Hi. Lumi-doc-104 This Talk HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 3

Scope 302. 3. 01 US-Hi. Lumi-doc-39 All LOE for entire RFD scope in this

Scope 302. 3. 01 US-Hi. Lumi-doc-39 All LOE for entire RFD scope in this Control Account HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 4

Requirements Overview § Functional Requirements (US-Hi. Lumi-doc-294) § Technical Requirements § Material Specifications (US-Hi.

Requirements Overview § Functional Requirements (US-Hi. Lumi-doc-294) § Technical Requirements § Material Specifications (US-Hi. Lumi-doc-668) § Bare Cavity Fabrication (US-Hi. Lumi-doc-803) § CERN Engineering Specification (US-Hi. Lumi-doc 1049) § Engineering Drawings (US-Hi. Lumi-doc-1750) § § Raw Materials Bare Cavity HOM Dampers Magnetic Shields HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 5

Preliminary Design Report Charge 1 Charge 6 § Describes entire RFD scope, including LARP

Preliminary Design Report Charge 1 Charge 6 § Describes entire RFD scope, including LARP experience § Presented at Preliminary Design Review 2018 CHAPTERS: US-Hi. Lumi-doc-1037 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Introduction Motivation Scope Requirements Early efforts on the RF Cavity Design and down-selection Design of RFD Prototypes for HL-LHC HOM spectra and impedance optimization Modeling and Optimization FPC Coupler and pick-up RF and HOM heating on Coupler Cavity Mechanical Design Manufacturing Strategy Cavity Processing Frequency control throughout fabrication Test Results of SPS Prototype Cavities HOM Dampers Mechanical Design and Fabrication Magnetic shield Design Dressed cavity assembly and qualification Interfaces and MIP Final Integration at CERN References HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 6

Preliminary Design Report US-Hi. Lumi-doc-1037 Rotational Chemistry Response to CD-1/3 a recommendation HL-LHC AUP

Preliminary Design Report US-Hi. Lumi-doc-1037 Rotational Chemistry Response to CD-1/3 a recommendation HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 7

Z. Li (SLAC) Recent RF design change (SLAC) Charge 1 (1 a) RF design

Z. Li (SLAC) Recent RF design change (SLAC) Charge 1 (1 a) RF design change was necessary to address two issues: § (1) Excessive beam-induced voltage observed at CERN in SPS tests of similar crab cavity (DQW) § § § New requirement by CERN on beam coupling voltage Vb < 0. 3 V/n. C (1 a) Port rotated by 90 deg, (1 b) implemented a hook design (2) Structural integrity of ceramic window subjected to transportation loads § § (a) Increased inner diameter of ceramic 50 Ohm 25 Ohm (b) Adjusted overall length (1 b) 50 ohm 35 mm 30 mm 37. 879 5 mm 16. 469 71. 0 mm 26 mm 5. 94 mm (1) (1+2) +/-0. 3 V/n. C (1 b+2) 25 ohm 35 mm 30 mm 37. 879 5 mm 24. 970 68. 8 mm 26 mm 5. 94 mm V_b: 0. 123 V/n. C HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 8

Design of Feedthrough for Dampers (SLAC) HOMs feed-thrus RF design change 50 Ohm 25

Design of Feedthrough for Dampers (SLAC) HOMs feed-thrus RF design change 50 Ohm 25 Ohm : § CERN provided a design for the ceramic feed-throughs. § After a number of iterations CERN/AUP converged on a design § HOMs damping requirements are still satisfied. Modified (blue) Z. Li (SLAC) Original (red) (CERN) Modified CERN (AUP) L. Ristori WP 4 - HL-LHC C&S 2019 – CERN, 11 -13 Nov 2019 9

Transportation Analyses Impact 30 ms 10 G Field antenna 25 Ohms Assembly H-HOM coupler

Transportation Analyses Impact 30 ms 10 G Field antenna 25 Ohms Assembly H-HOM coupler + feedthrough 25 Ohms § RF ancillaries OK up to 10 g 30 ms (FRS 7. 5 g 20 ms) § No mechanical resonances up to 63 Hz V-HOM coupler 25 Ohms HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 10

Towards Final Design (CERN) Result RFD Pressure sensitivity [Hz/mbar] Lorentz force detuning [HZ/MV 2]

Towards Final Design (CERN) Result RFD Pressure sensitivity [Hz/mbar] Lorentz force detuning [HZ/MV 2] -215 -606 HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 11

Design Status and Outlook LARP Design + Prototypes AUP Design AUP Drawings AUP Prototypes

Design Status and Outlook LARP Design + Prototypes AUP Design AUP Drawings AUP Prototypes ✔� ✔� ✔� Mar 2020 Mag. Shields - ✔� ✔� Jun 2020 He Tank - ✔� Mar 2020 Oct 2020 HOM Dampers ✔� ✔� ✔� Jul 2020 Dressed Cavity - ✔� Apr 2020 Dec 2020 Bare Cavity § All available drawings available in US-Hi. Lumi-doc-1750 HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 12

Charge 3 External Dependencies § § RF design of bare cavity and RF ancillaries

Charge 3 External Dependencies § § RF design of bare cavity and RF ancillaries is responsibility of AUP. Design is uploaded in EDMS at CERN. Mechanical design is responsibility of CERN. Specification/functional drawings provided to AUP. All external dependencies are captured in milestones dictionary Risks associated with external dependencies § CERN specification drawings of deliverables are delayed or changed. External Milestones A 231304 EX: Design Freeze – Prototype RF Ancillaries 01 -Jul-19 Accomplished A 231301 EX: Design Freeze – Prototype Mag. Shields 03 -Sep-19 Accomplished A 231302 EX: Design Freeze – Prototype Helium Tank 01 -Oct-19 Accomplished A 231303 EX: CERN Design Complete – Bare Cavities 02 -Jan-20 Accomplished A 231300 EX: CERN Design Complete – RF Ancillaries 30 -Jun-20 A 205980 EX: Cavities Final Design Review (FDR) 02 -Jul-20 A 229800 EX: CERN Design Complete – Helium Tank 24 -Sep-20 A 205690 EX: CERN Crab Cavity Acceptance Completed 30 -Jan-23 HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 13

Integration and Coordination aspects § Integration with CERN: § Holding ~ monthly meetings with

Integration and Coordination aspects § Integration with CERN: § Holding ~ monthly meetings with CERN WP 4 (Crab Cavities) to discuss requirements, agreements, design, fabrication, qualifications § Other ad-hoc meetings including international collaboration for WP 4 (USA, Canada, UK) § Regular visits of L 2/L 3 to CERN for ”synchronization” meetings § Cross-participation of L 2 and WP 4 leaders at CERN and FNAL reviews. § Interfaces between AUP and CERN (physical and data) captured in Interface Control Document § Coordination within AUP 302. 3 § Weekly meetings (FNAL, BNL, ODU, SLAC, JLAB) § Work at major collaborating institutions fully defined by yearly work agreements with quarterly deliverables (see next talk by P. Berrutti) § Vendor oversight (labor and travel) for each procurement is in baseline § Interfaces between L 4 s captured in Interface Control Document HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 14

302. 3. 01 Cost & Schedule Performance SPI CPI 302. 3. 01 1. 01

302. 3. 01 Cost & Schedule Performance SPI CPI 302. 3. 01 1. 01 Charge 2 302. 3. 01 1. 17 1. 00 0. 99 1. 12 0. 98 1. 07 0. 96 302. 3. 01 1. 02 0. 95 0. 94 302. 3. 01 0. 97 0. 93 0. 92 1 2 3 4 5 6 7 8 9 10 1 § 2 3 4 5 6 7 8 9 10 Slight underspending in LOE activities HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 15

Estimate at Completion Charge 2 § Variance at Completion for 302. 3. 01 is

Estimate at Completion Charge 2 § Variance at Completion for 302. 3. 01 is +$106 k (underspending) § VAC driven by underspending in LOE compared to original estimates. § No BCRs for this control account HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 16

Plans for CD-3 c Charge 2 § Conduct a Procurement Readiness Review for Pre-Series

Plans for CD-3 c Charge 2 § Conduct a Procurement Readiness Review for Pre-Series Bare Cavities – planned Mar 2020 § Conduct a Final Design Review of entire RFD scope by an external team (413. 3 b requirement) - planned June 2020 § Finalize and approve all necessary documentation § Acceptance Criteria, Interface Documents, Technical Specifications, Drawings, Manufacturing Plans, . . § Address open recommendations HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 17

Summary § Scope and Deliverables of 302. 3. 01 are defined § Functional Requirements

Summary § Scope and Deliverables of 302. 3. 01 are defined § Functional Requirements are Approved § Design of RFD Dressed Crab Cavities meets functional requirements, is on track for Final Design Review § Integration with CERN is critical § Coordination inside 302. 3 is managed accurately § Risks are identified and managed HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 18

Backup Slides HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 19

Backup Slides HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 19

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HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 20

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HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 21

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HL-LHC AUP IPR DOE/SC Review– Jan 14 -16, 2020 22