Joint LARP CM22 HiLumiLHC Collab Meeting May 79 2014 Brookhaven National Laboratory Acknowledgement M Anerella G Apollinari F Borgnolutti R Bossert R Carcagno D Cheng G Chlachidze DR ID: 1031473
Download Presentation The PPT/PDF document "QXF Plans G. Ambrosio, P. Ferracin" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
1. QXF PlansG. Ambrosio, P. FerracinJoint LARP (CM22) HiLumi-LHC Collab Meeting May 7-9, 2014 Brookhaven National LaboratoryAcknowledgement:M. Anerella, G. Apollinari, F. Borgnolutti, R. Bossert, R. Carcagno, D. Cheng, G. Chlachidze, D.R. Dietderich, H. Felice, P. Fessia, A. Ghosh, A. Godeke, S. Izquierdo Bermudez, M. Juchno, S. Krave, M. Martchevskii, A. Nobrega, J. C. Perez, H. Prin, G. Sabbi, J. Schmalzle, E. Todesco, P. Wanderer, M. Yu (and many more…)
2. OutlineMQXF overviewShort models planLong models planTesting the planRisk reduction2
3. MQXF overview - I3140 T/m in 150 mm coil aperture Two-layer coils w/o internal spliceAl shell structure preloaded with bladders and keysSegmented Al shellAxial preload by tie-rods Quench protection by active heatersExploring other tools (CLIQ)
4. MQXF overview - II4Short modelQ1/Q3 (half unit)Q2Magnetic length [m]1.24.06.8“Good” field quality [m]0.53.36.1Coil physical length [m]1.54.37.1Cable unit length per coil [m]150430710Strand per coil [km]6.51830US CERN
5. LARP-CERN Integrated PlanLARP and CERN are working closely together for developing and demonstrating the MQXF design:Requirements from Hi-Lumi LHC WP3 with strong LARP participationShared work for the design (single design)Working groups with representatives from 4 labsShared effort for the 1st short model (SQXF1)Work in parallel for subsequent short models (SQXF)LARP/CERN full-length (4m/6.8m) prototypes (LQXF)5CERN and LARP are exploring some different coil features keeping compatibility
6. Plan Overview6Short model program: 2014-2016Fabrication of practice coils started in March According to schedule presented at CM20 (4/13)First SQXF coil test (Mirror struct.) in Dec. 2014, Apr. 2015First magnet test (SQXF1) in May 20152 (LARP) + 3 (CERN) short models + reassembly (~4)Long model program: 2015-2018Coil winding starts in 2015: Jan. (LARP), Sept. (CERN)First LQXF coil test (Mirror structure) in Dec. 2015First model test in Oct. 2016 (LARP) and July 2017 (CERN)3 (LARP) + 2 (CERN) models in totalSeries production: 2018-2022
7. 1st SQXF coil in progress7
8. SQXF plan and schedule:Coil fabricationCERNNumber of coilsFirst set2 practice coils1 mirror coil5 RRP coilsSecond set6 PIT coils5 RRP coilsFabrication stepsWinding + curing + reaction + impregnationFabrication time~100 days (5 months) per coil1 coil produced every 2 months in the 1st yearevery 1.5 months in the 2st yearevery 1 months in the 3st yearLARPNumber of coilsFirst set2 practice coils1 mirror coil5 RRP coilsSecond set5 RRP coilsFabrication stepsFirst setFNAL: winding + curingBNL, FNAL, LBNL : reaction + impregnationSecond setFNAL: winding + curingLBNL: reaction + impregnationFabrication time~100 days (5 months) per coil1 coil produced every monthBudget limited8
9. SQXF plan and schedule:Tests From assembly to test and disassembly: ~5 months; Test by LARP or CERN1st generation coilsFirst LARP coil test in 12/2014 (mirror structure)First CERN coil test in 04/2015 (SQXF structure with practice coils or LARP mirror structure)First magnet test (SQXF1) in 05/2015Assembled ad tested by LARP with 3 LARP coils and 1 CERN coilThen SQXF1b (prestress optimization)First magnet test by CERN (SQXF2), then SQXF2b (test of LHe containment)2nd generation coilsLARP RRP: SQXF3 (04/2016) and SQXF3b (11/2016)CERN PIT: SQXF4 (2016-2017)CERN RRP: SQXF5 (2017)Test of 2-magnets in 1-cold-mass: SQXF5+SQXF3b (2017)9
10. Long model programPlan and scheduleCERNNumber of coils3 practice1 coil for mirror test11 coils (5 RRP + 6 PIT)Coil winding starts 09/2015Models/tests2 models, 3 testsHoriz. “simplified” testsMirror test in 11/2016 First model test in 07/2017Last test 10/2018LARPNumber of coils2 practice (1 FNAL & 1 BNL)1 coil for mirror test15 RRP coilsCoil winding starts 01/2015Models/tests3 models, 3 tests + mirror2 structuresVertical tests (BNL)Mirror test in 12/2015First model test in 10/2016Last test 04/201810
11. Pre-series and series productionCERN (Q2) full length10 cold masses2 pre-series/spares, 8 series10 magnets2 pre-series, 8 series45 coils4.5 per magnet80 days per coil1 coil every 15 daysLARP (Q1/Q3) half length10 cold masses2 pre-series/spares, 8 series10+10 magnets4 pre-series, 16 series45+45 coils4.5 per magnet80 days per coil1 coil every 15 days2 production lines11
12. Testing the PlanIn the High Luminosity upgrade of the LHC Nb3Sn magnets are a critical component of a particle accelerator for the 1st time ever There is an intrinsic risk There may be unknown unknownsIs the S/LQXF program adequate?12
13. Plan Overview13Short model program: 2014-2016Fabrication of practice coils started in March According to schedule presented at CM20 (4/13)First SQXF coil test (Mirror struct.) in Dec. 2014, Apr. 2015First magnet test (SQXF1) in May 20152 (LARP) + 3 (CERN) short models + reassembly (~4)Long model program: 2015-2018Coil winding starts in 2015: Jan. (LARP), Sept. (CERN)First LQXF coil test (Mirror structure) in Dec. 2015First model test in Oct. 2016 (LARP) and July 2017 (CERN)3 (LARP) + 2 (CERN) models in totalSeries production: 2018-2022Demonstrate nominal gradient with margin and memoryAssess safe pre-stress rangeUnderstand field quality and possible correctionDemonstrate safe quench protection for MQXFDemonstrate 2 structures in 1 cold mass 5 magnets + 4 reassemblies look OK, MQXB experience suggests “not one less”Having LARP & CERN working together provides risk reduction
14. Plan Overview14Short model program: 2014-2016Fabrication of practice coils started in March According to schedule presented at CM20 (4/13)First SQXF coil test (Mirror struct.) in Dec. 2014, Apr. 2015First magnet test (SQXF1) in May 20152 (LARP) + 3 (CERN) short models + reassembly (~4)Long model program: 2015-2018Coil winding starts in 2015: Jan. (LARP), Sept. (CERN)First LQXF coil test (Mirror structure) in Dec. 2015First model test in Oct. 2016 (LARP) and July 2017 (CERN)3 (LARP) + 2 (CERN) models in totalSeries production: 2018-2022Demonstrate nominal gradient with margin & memoryDemonstrate safe pre-stress and reproducibility Demonstrate field quality and possible correctionDemonstrate safe quench protectionLARP and CERN will develop magnets with different lengths3/2 magnets are bare minimum for demonstrating reproducibility
15. Risk Reduction - IThe 120 mm LARP program is providing risk reduction before we start testing QXF modelsHQ02 reached 95% of SSL at 1.9K:Coil fabrication technology is OKMagnet assembly process is OKQuench protection tests:With sufficient prestress hot-spot 300+ K is OKCLIQ is very effective for Nb3Sn coilsField Quality:Promising correction with magnetic shimsLHQ coil test in a few months15
16. Risk Reduction - IICOIL FABRICATION TECHNOLOGYTests of 1st “good” coil in mirror structuresFor SQXF and LQXF coilsMAGNET ASSEMBLYDry assembly of StructuresFor SQXF and LQXF16
17. Risk Reduction - IIIQUENCH PROTECTIONDeveloping different heater designs and different techniques to avoid “bubbles”For SQXF1Modifications to test facilities for testing/demonstrating CLIQ on S/LQXFFor SQXF1 and LQXF117
18. ConclusionsIn HiLumi, for the 1st time ever, Nb3Sn magnets are a critical component of a particle acceleratorThere is an intrinsic risk … unknown unknownsLARP and CERN have developed a plan good enough for this task There is still a long way full of challenges, but we are building upon a significant series of success: 18Keep doing this excellent work