LCLSII Prototype Cryomodule Cavity Tuner Project Management Camille

LCLS-II Prototype Cryomodule Cavity Tuner Project Management Camille M Ginsburg (FNAL) Cavity Tuner Final Design Review April 15, 2015

Outline: Project Management Context for Tuner Introduction to tuner design team Committee charge for the review Cryomodule high-level plan, focusing on tuner Reviews Conclusions Expectations for the review Tuner FDR - 15. Apr. 2015 - Ginsburg 2

Tuner Design Team Yuriy Pischalnikov (tuner lead) Evgeniy Borissov (mechanical design engineer) The LCLS-II tuner and its predecessors have been tested and developed over the last several years at Fermilab by many people, including Warren Schappert (tuner expert), Jeremiah Holzbauer (test lead), Chuck Grimm (studies of drive mechanics) We have benefited strongly from collaboration with JLab. Tom Peterson (Cryomodule design lead engineer) Nikolay Solyak (Design verification lead) CMG (Cryomodule CAM) Rich Stanek (Senior Team Lead) Tuner FDR - 15. Apr. 2015 - Ginsburg 3

Cavity Tuner FDR Committee Charge (Ross/Hays) Evaluate design readiness of the LCLS-II 1. 3 GHz SCRF Cavity Tuner for approval of design implementation, procurement, fabrication and installation activities. Technical Scope • • Are designs mature and technically sound to satisfy design specifications, including microphonics control for CW operation? Is the design likely to meet performance expectations? Consider published performance specifications, and - • • • Reliability, Reparability, Longevity, Radiation sensitivity Have installation issues been adequately addressed? Have all the major interfaces been identified and incorporated into the design? Are all design specifications, requirements, performance, and interface documents reviewed, approved and released? Design Management • • Is the design team organized and staffed to successfully complete the project? Have all of the major risks been identified and managed? Are procurements appropriately planned? Is the development of associated drawing packages sufficiently mature? Cost and Schedule • Is the cost and schedule reasonable to achieve the planned scope? ES&H • • Are all related ES&H aspects being properly addressed? Does the cavity tuner present any possible impacts on the pressure vessel performance of the helium tank? Miscellaneous • • Have all the previous design review action items/comments been addressed? Are there any other issues that have been identified that need to be addressed? Overall Readiness: Is the design sufficiently mature so as to allow FDR approval (~90 -100% Design Maturity)? Tuner FDR - 15. Apr. 2015 - Ginsburg 4

LCLS-II cryomodule production model • 1. 3 GHz cryomodules (35) • Produce two streams of identical 1. 3 GHz production CM at FNAL&JLab - Tightly coordinated activity among partner labs - Common procedures, common test performance database, common - travelers, etc. (within infrastructure limits) Split procurements between the two labs • Assemble two prototypes in advance of 33 production cryomodules • Test >50% of cryomodules prior to delivery to SLAC, including prototypes • 3. 9 GHz cryomodules (2) • Designed, produced and tested at FNAL, following 1. 3 GHz for efficiency • All cavities and cryomodules go in the linac • 1 st two 1. 3 GHz cryomodules (prototypes) work to specification • No spare cavities or CM’s Tuner FDR - 15. Apr. 2015 - Ginsburg 5

LCLS-II 1. 3 GHz cryomodule procurement model • Procurements distributed JLab/FNAL • Deliveries split between JLab/FNAL • Documented LCLSII-4. 1 -PM-229 -R 0 6/12/2014 NB: 3. 9 GHz procurements @FNAL: proto. CM tuner procurement JLab: prod CM tuner procurement Tuner FDR - 15. Apr. 2015 - Ginsburg 6

LCLS-II prototype 1. 3 GHz cryomodules • Purpose of prototypes • • Test out the design modifications as soon as possible Prove out the JLab infrastructure modifications Develop procedures and travelers, train staff, etc. Prototype CM’s will go in the beamline and must perform to specification • Build two prototype cryomodules, one each at FNAL and JLab • Use 16 existing FNAL ILC 9 -cell short-short cavities (beam tube lengths) • Adapt XFEL-style end-lever tuner - Fit short-short cavities Permit access through ports, to mitigate risk of using new design Satisfy requirements of LCLS-II operation • Design new He vessel to accommodate end-lever tuner and larger heat load • Titanium to SS transition on chimney and fill lines • He vessel and tuner may be different proto/prod CM • XFEL vessel/tuner are production baseline, but must be confirmed for LCLS-II operation Tuner FDR - 15. Apr. 2015 - Ginsburg 7

LCLS-II 1. 3 GHz cryomodule schedule – where tuner fits • A full P 6 schedule has been developed • CD milestones, facility throughput, lead time on procurements • Details of design verification studies and cavity test/prep for prototype cryomodules were recently added • Design verification studies continue through June 2015 • Prototype CM – current (baseline) P 6 status • Begin FNAL assembly July 2015 [tuner needed at WS 3 Oct 2015] o Driven by dressed cavities & couplers • FNAL prototype cryomodule testing Jan-Jun 2016 • Production CM – current (baseline) P 6 status • Begin FNAL assembly April 2016 [tuner needed Jun 2016] Tuner FDR - 15. Apr. 2015 - Ginsburg 8

LCLS-II Tuner-Related Reviews • Prototype 1. 3 GHz dressed cavity – 5. Apr. 2014 – Engineering Peer - Cavity, helium vessel, preliminary tuner - https: //indico. fnal. gov/conference. Display. py? conf. Id=8598 • Prototype 1. 3 GHz cryomodule 20 -21. Jan. 2015 – Final Design • Also served as a tuner preliminary design review • https: //indico. fnal. gov/conference. Display. py? conf. Id=9245 Ø Yuriy P. will address the recommendations in his presentation • 1. 3 GHz Production CM Final Design Review Apr 2015 • Tuner FDR today (among other items) is input info for this review • NB: High Q 0 preservation in the prototype cryomodule will not be fully confirmed until Jan-Jun 2016 Tuner FDR - 15. Apr. 2015 - Ginsburg 9

Other tuner meetings The tuner has world-wide interest (ILC, XFEL, etc. ). We had several meetings to discuss details of the performance and assembly: • SRF tuner workshop (organized by Akira and Camille) Oct. 13, 2014 https: //indico. fnal. gov/conference. Display. py? conf. Id=8965 • Internal Review (organized by YP) Dec. 18, 2014 As well as several presentations to LCLS-II meetings. • Many useful comments have been incorporated Tuner FDR - 15. Apr. 2015 - Ginsburg 10

Tuner Risks (in Risk Registry) • Cavity tuner failures in prototype CM tests, tuner repair requires CM reass’y [LCLS. Cryo. Mod-018] Ø Mitigation: implement accelerated lifetime testing for tuner. Include tuner access ports in prototype CM to permit in situ tuner replacement Tuner FDR - 15. Apr. 2015 - Ginsburg 11

Conclusions: LCLS-II p. CM tuner • The LCLS-II FNAL tuner team has developed a substantially modified Saclay-type end-lever tuner • Suitable for CW operation on a high-Q 0 cavity for LCLS-II • Suitable for use with short-short (ILC) existing cavities • Taking into account worldwide experience on end-lever tuner performance • In cold tests, the tuner met the performance specs • A full schedule and plan have been developed, based on previous experience, taking into account the aggressive project schedule requirements, and risk mitigation for a new design Tuner FDR - 15. Apr. 2015 - Ginsburg 12

Expectations for this review Passing the review, possibly with action items to be completed, triggers approval of design implementation, procurement, fabrication and installation activities. Ø Procurement of remaining 14 tuners (excluding piezos and motors, which have already been procured) Two significant test activities will continue past this review • Add’l high-Q 0 cavity tests with tuner (integrated tests) • Accelerated lifetime tests for the motor/drive assembly (JLab) Your comments would be very valuable on: • Advisability of switching to the XFEL tuner for the production cryomodule • Advisability of tuner access ports if we keep the p. CM tuner for production Tuner FDR - 15. Apr. 2015 - Ginsburg 13

Backup Slides Tuner FDR - 15. Apr. 2015 - Ginsburg 14

Cryomodule Assembly Work Stations WS 2 WS 1 WS 3 WS 0 WS 5 Repair Area WS 4 Tuner FDR - 15. Apr. 2015 - Ginsburg WS 6 15