Japan Contribution to the HLLHC project Lucio Rossi
Japan Contribution to the HL-LHC project Lucio Rossi – CERN - Project Leader Oliver Brüning – CERN – Deputy Project Leader Talk to CERN-KEK meeting – 31 October 2017 at KEK
Goal of High Luminosity LHC (HL-LHC) as fixed in November 2010 From FP 7 Hi. Lumi LHC Design Study application The main objective of Hi. Lumi LHC Design Study is to determine a hardware configuration and a set of beam parameters that will allow the LHC to reach the following targets: A peak luminosity of Lpeak = 5× 1034 cm-2 s-1 with levelling, allowing: An integrated luminosity of 250 fb-1 per year, enabling the goal of Lint = 3000 fb-1 twelve years after the upgrade. This luminosity is more than ten times the luminosity reach of the first 10 years of the LHC lifetime. Ultimate performance established 2015 -2016. With same hardware and same beam parameters, by using engineering margins: Lpeak ult 7. 5 1034 cm-2 s-1 and Ultimate Integrated Lint ult 4000 fb-1 LHC should not be the limit, would Physics require more than nominal L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 2
Technical limits to lumi increase (Machine & Experiments) L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 3
L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 4
Hi. Lumi LHC landmarks L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 5
The largest HEP accelerator in construction ATLAS CMS Dispersion Suppressor (DS) in P 7 Modifications 1. In IP 2: new DS collim. in C. Cryost. 2. In IP 7 new DS collimation with 11 T Cryogenics, Protection, Interface, Vacuum, Diagnostics, Inj/Extr, Controls, new UG and surface infrastr. Matching Section (MS) Change/new lay-out 1. TAXN 2. D 2 3. CC 4. Correctors 5. Q 5 6. Q 5@1. 9 K in P 6 7. New collimators Interaction Region (ITR) Complete change and new lay-out 1. TAXS 2. Q 1 -Q 2 a-Q 2 b-Q 3 3. D 1 4. All correctors 5. Heavy shielding (W) > 1. 2 km of LHC !! L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 6
Luminosity profile: ULTIMATE goal ≈ 150 fb-1 ≈ 300 fb-1 > 100 fb-1 L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 7
Last update of Lumi of the 2017 Run On track for 150 fb-1 by end 2018 L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 8
The Inner Triplet region with in-kinds The D 1 magnets are critical for performance and for installation schedule Connection to LHC (UL) Service gallery (UR) SC Links Q 2 a Q 1 TAXS Q 2 b Q 3 CP DFX D 1 DFM L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 9
The MS region with in-kinds UA gallery Service cavern (BBLR) Q 4 Crab cavities D 2 Collimators TAXN L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 10
Hi. Lumi & Collaborations: the long route Non binding Mo. U for HLLHC Collaboration partners with contributions added in addendums Means forming a community for the HLLHC partners Search for new in-Kind contribution: Canada/Triumf? China/IHEP? Russia/BINP? Beyond FP 7: CEA, INFN, UK CIEMAT, Uppsala Transition from Design Study to Construction Project!! L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 11
Hi. Lumi LHC Main Milestones § § 2010: establishment of the Design Study 2011: approved DS funding by EU 2013: Priority 1 in EU strategy update for PP 2013: kick-off meeting of HL-LHC as construction project (50% of the budget) § 2015: First C&SR; end of Hi. Lumi DS § 2016: approval of full budget in June Council § 2016: rebaseline to include full C. E. cost L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 12
Rebaseline May-Aug 2016 (triggered by extra cost of C. E. ) § Crab Cavity: 2 cavities/beam-side 16 CCs + 4 spares (vs. 32+8 previously) Revision of the power/CC and volume of the power system § Use of present Q 4 – MQY quadrupole- with 70 mm aperture (avoiding new MQYY of 90 mm aperture as new Q 4). MQY modified for 1. 9 K operation. § QPS for the MQXF with a minimal configuration with redundancy. § Reduction of 11 T dipoles for DS collimation (2 complete cryoassembly instead of 4). § Plus other measures (collimations, powering…) L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 13
Rebaseline § Saving on the technical WPs: about 76 MCHF § Saving induced on WP 17 : about 45 MCHF ’ 16; g u 3 A g; n § Performance: no reduction (just less margin) if: o nt nin me -Plan n n e g § Efficiency increase to 50% for nominal ana COST essio m N R for shop s E 6 § Efficiency increase to 58% for ultimate… C 1 20 by ork t d c w e O prov SR 2 in the LHC p a ine by C& AC in l e s a ed– TS 2 y C-M Reb dors. TS 1 TS 2 – TS 3 LHC 2016 en orsed b end L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 14
CMAC Jan 2017: technical examination of the rebaseline. Assessment & recommendations § The scope changes from the re-baseline in September of 2016, while increasing risks and narrowing margins in several areas, do not affect the ability to achieve the ultimate Luminosity goal of HLLHC as far as we can assess. § Uncertainties in predicting the halo require large design margins for the collimators. Hollow electron lenses, a proven technology, can further mitigate this risk. The HL-LHC team should further evaluate (calculate and measure) the necessity and management might want to consider inclusion into the baseline, even at increased cost. § Charge question 5: Review the HL-LHC ability to reach the initial (unchanged) performance goals of 3000 fb-1 integrated luminosity (respectively 4000 fb-1 for the ultimate configuration), a mean pileup of 140 (ultimate 200) and around 250 fb-1/year, taking into account decisions taken during the 2016 re-baselining exercise of the HL-LHC projet: § The revised LIU and HL-LHC design after re-baseline in Sept 2016 has been completely integrated and luminosity performance is NOT impacted. Risk in some areas has increased but is acceptable. L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 15
HL-LHC Critical Reviews: Transition from Design Study to Construction Project § § § Nov. 2014: Superconducting wire & cable for IT Quads Dec. 2014: IT Quadrupole design June 2016: Quadrupole performance and construction 2015: First C&SR; end of Hi. Lumi DS 2016: approval of full budget in June Council 2016: re-baseline to include full C. E. cost Oct. 2016: Review of the needs for hollow e-lens for HL-LHC March 2017: International Review of Cooling and Ventilation March 2017: HL-LHC Magnet Circuits Internal Review April 2017: International Review of the Crab Cavity Performance May 2017: Internal review of IR cryostats July 2017: International Review of the Cold Powering System for the HLLHC § August 2017: DOE CD 1 Review go ahead ✔� § October 2017: International Review on the e-lens concept readiness HLLHC baseline § November 2017: Internal Review on 11 T Readiness for Construction L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 16
D 1 MAGNET E. Todesco HL LHC 2025 -2035 § D 1 is a Nb-Ti dipole with 5. 6 T nominal field § HL LHC requires to reach the ultimate field (8% more than nominal) corresponding to LHC at 7. 5 Te. V operation § One short model built in 2015 -16 § First test reached 5. 6 T but not ultimate MBXFS 1 test [T. Nakamoto, M. Sugano, A. Musso, et al. ] L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 17
D 1 MAGNET § Low prestress found, increase of prestress and new test MQXFS 1 b § Ultimate reached E. Todesco Low prestress in MQXFS 1 a [T. Nakamoto, M. Sugano, et al. ] MBXFS 1 test [T. Nakamoto, M. Sugano, A. Musso, et al. ] L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 18
D 1 MAGNET E. Todesco § Short model program § Second model required to have an iteration on field quality § Construction started, test foreseen for March 2018 § Third model required to prove reproducibility § Construction in 2018, test December 2018 § Long magnets § Prototype foreseen for 2019 -2020 § Vertical test of the magnet in mid 2020 § Horizontal test of the cold mass in cryostat in end 2020 § Series follows in 2021 -23 § All this in the hypothesis of no need of further iteration after prototype construction § Decision on long magnets needed in first half of 2018 at the latest to fit HL-LHC Schedule!! L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 19
Triplet Magnets § We had three International Reviews, all together with US partners: § On Superconducting wire & cable for IT Quads(Nov. 2014) § On IT Quadrupole design (Dec 2014) § On IT Quadrupole performance and construction (June 2016) § From the MQXF International Review of 2016: § The committee congratulates the team on the progress achieved in the MQXF design and R&D work… the excellent teamwork in the CERN and US-LARP collaboration for the HLLHC including significant roles and contributions made by young scientists and engineers to ensure future project success. § The committee recognizes the great achievement of a unified MQXF cross sectional design in the series of Q 1, Q 2, and Q 3 magnets. It gives clear evidence of how the US-LARP and CERN collaboration has been successfully working together for the common goals. § The committee recommends to continue the development of the three quench protection solutions as the baseline for the R&D (not yet for the series production magnet), and suggest to define a milestone in the MQXF schedule with the decision to include or not the IL-QH and/or CLIQ system for the series production. § … § US LARP/AUP has developed a very comprehensive and solid schedule for prototyping and series production based on a detailed and credible analysis of the resources (tooling and manpower), duration and risks associated with each process. The committee commends the US team for its very thorough efforts; the schedule basis appears sound and the applied contingency level appropriate. L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 20
Last short model (MQXSF 05) test at CERN First with all PIT conductor and laminated structure Excellent memory! L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 21
Crab Cavity § Two International Reviews: § The CC system review for down-selection (May 2014) § The CC system performance review (Apr 2017) § Text from Apr. 2017 review: § We recognize that both cavity designs (DQW and RFD) are mature, as demonstrated with initial Proof-of-Principle (Po. P) prototypes and later with evolved prototypes for the SPS/LHC installation. § We concur with the plan to keep the CC development with two complementary designs, and agree with the concept of the CM design allowing common interfaces to HPRF and Cryogenics system. § The RFD design and prototype results are further impressive. The LARP development has been successful. The U. S. Accelerator Upgrade Project (AUP) scope is defined and a sound conceptual design exists. The AUP is in a good position to seek CD-1 approval through the expected CD-1 review in 2017 § We strongly support the bunker CM test at SM 18, planned with associated cryogenics qualification and integrated RF system checks to be done before the SPS test. § … (many suggestion on balance between SM 18 and SPS tests) § CC International Review in April 2017: Go AHEAD! L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 22
Milestone achievement for Hi. Lumi: SRF Crab Cavity first two prototypes in 2017 Operating point in HL-LHC US-LARP DQW CERN DQW In early 2017 four (naked) Crab Cavities were tested: all went well beyond the operating voltage of 3. 4 MV The US-LARP DQW (tested at JLab) went up to 5. 4 MV The CERN DQW (test at SM 18) went up to 5. 04 MV The US-LARP RFD 1 -2 (tested. Jlab) reached 4. 03 -5. 75 MV. This is an outstanding result for the first prototypes. Our schedule of CC testing in the SPS in 2018 is confirmed L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 23
Working on feasibility for installation of Hollow electron lenses (not yet in baseline) Distance from IP 4: 42809 mm LARP contribution has been fundamental to study and set up the project. An International review in Oct. ’ 16, pointed to the necessity of controlling HL halo energy (35 MJ for particles above 3. 5 ). Ventilation door V. C Supports ADT HEL D 3 DFB L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 24
WP 17 (C. E. and Tech. Infr. ) Status § WP 17. 1: Civil engineering § Preliminary design completed in December 2016 § Tendering design and contractual documents issued on July 2017 ! § Tender assessment: Nov-Dec 2017 (double envelope system). § The adjudication of two contracts (one for Point 1 and another one for Point 5) foreseen in March 2018. L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 25
HL-LHC master schedule (Critical path) Installation of the D 1 Preliminary installation plan – with some details – ready by beginning of 2018 Run 2 objectives LS 3 objectives L Rossi & O. Brüning @ DOE CD-1 review - 8 August 2017 L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 26
General Planning: Inner Triplet Magnets Series production needs to start in end 2018 to beginning 2019! L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 27
KEK contribution from 2016 Series production needs to start in 2021 and prototype production in 2019! KEK contribution from 2017
HL-LHC project – Material budget: 950 MCHF CERN accounting (it includes construction labour and Associates, not the staff) 1 000 900 800 This includes items under in-kind, Cost Variance in k. CHF 700 13, 215 600 400 300 in k. CHF -8, 969 in Months Personnel: Ca. 1800 FTE-y staff (P) Ca. 1200 FTE-y Associates (M) Nearly 470 MCHF total. 500 Schedule Variance -2. 2 200 100 Jan 15 May 15 Sep 15 Jan 16 May 16 Sep 16 Jan 17 May 17 Sep 17 Jan 18 May 18 Sep 18 Jan 19 May 19 Sep 19 Jan 20 May 20 Sep 20 Jan 21 May 21 Sep 21 Jan 22 May 22 Sep 22 Jan 23 May 23 Sep 23 Jan 24 May 24 Sep 24 Jan 25 May 25 Sep 25 Jan 26 May 26 Sep 26 Millions HL-LHC Project Planned Value CSR 2016 Planned Value Active Baseline Earned Value Actual Cost L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 29
TDR V 0. 1 The last version of the TDR updated with the re-baseline of Aug 2016 Published in electronic version for the October 2016 Cost & Schedule review EDMS: 1723851 and as CERN Yellow Book in October 2017 Version for printing available on EDMS: 1833445 https: //edms. cern. ch/file/1833445/1/HLLHC_TDR_V. 01. 2017. 08. 04. h 18. 030. pdf L Rossi & O. Brüning @ CERN-KEK meeting- 31 October 2017 30
Looking forward to a great common adventure with Hi. Lumi, the largest HEP accelerator project of this decade Thanks to the many people that are working hard to make the project possible! L Rossi & O. Brüning @ DOE CD-1 review - 8 August 2017 31
Spares slide L Rossi & O. Brüning @ DOE CD-1 review - 8 August 2017 32
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