CERN- KEK about LHC upgrades programs Lucio Rossi 14 December 2011

The path and goals: 3000 fb -1 – L peak < Dec20112 Rad. damage

Tuning of the goal after summer Efficiency is defined as the ratio between the annual luminosity target of 250 fb -1 over the potential luminosity that can be reached with an ideal cycle run time with no stop for 150 days: t run = t lev +t dec +t turn. The turnaround time after a beam dump is taken as 5 hours, t decay is 3 h while t lev depends on the total beam current Dec20113

Cycle in the HL-LHC run 20E+34 pile up heat deposition in IR and DS other? pile up heat deposition in IR and DS other? Dec20114

Possible evolution toward 3000 fb -1 Dec20115

IR Magnets (triplet, D1, D2, MQ4, …) SC Crab Cavities, IR Collimation Dec20116

7 Other changes Cryogenics Cryogenics During LS2, a new refrigerator will be installed at P4, to feed RF cavities and restore IR 5L During LS2, a new refrigerator will be installed at P4, to feed RF cavities and restore IR 5L Refrigerator K: Refrigerator K: 4.5 kW kW (flash) kW (thermal losses line & valve box) kW (contingency 33%) 4.5 kW kW (flash) kW (thermal losses line & valve box) kW (contingency 33%) During LS3 new refrigerators for P1-P5 During LS3 new refrigerators for P1-P5 Warm compressor installed in surface. Warm gas lines in Pit Warm compressor installed in surface. Warm gas lines in Pit Cold boxes installed in underground and surface (if 2 K or 1.8 K options) Cold boxes installed in underground and surface (if 2 K or 1.8 K options) Distribution and transfer lines to equipments (magnets, DFBs, crab-cavities ?, SCL ?, sector powering ?...) Distribution and transfer lines to equipments (magnets, DFBs, crab-cavities ?, SCL ?, sector powering ?...)

Dec20118 Other changes (list not exhaustive…) R2E: whatever needed, see from experience frome next years R2E: whatever needed, see from experience frome next years P8 P8 Removal of EPC and DFBX from tunnel to surface via long SC links rated of GW d.c. Removal of EPC and DFBX from tunnel to surface via long SC links rated of GW d.c.

Dec20119 LIU – LHC Inj Upgrade (R. Garoby) LS2 (2018) and LS3 ( ) Linac4 (160 Mev H- vs. 50 MeV H of Linac2) Ready by mid 2014 Connected 2015? Reliability, brilliance… Linac4 (160 Mev H- vs. 50 MeV H of Linac2) Ready by mid 2014 Connected 2015? Reliability, brilliance… PS Booster upgrade: from 1.4 GeV (800 Gev) to 2 GeV to reduce space ahrge at PS injection Intensity gain : +65% Project launched; PS Booster upgrade: from 1.4 GeV (800 Gev) to 2 GeV to reduce space ahrge at PS injection Intensity gain : +65% Project launched; SPS reduction of impedence new optics with low  t (26  15 GeV) new 200 MHz cavities reduction e-clouds by vaccum chamber coating (or scrubbing?) SPS reduction of impedence new optics with low  t (26  15 GeV) new 200 MHz cavities reduction e-clouds by vaccum chamber coating (or scrubbing?)

The HL composition, larger than FP7 HiLumi Collimation Project Matching section and correctors Beam Diagnostics High Field Magnets R&D HE-LHC Studies Hardware Commissioning EuCARD2 WP10 on HTS dipoles Dec201110

Dec Budget FP7 HiLumi and HL-LHC Perfect score 15/15, ALL request to EU granted Estimated cost for the the whole HL-LHC over 10 years in M€ (October 2010)

Dec days Collaboration Meeting at CERN Nov (160 people) Collaboration Board members/invited

Dec201113

Staff HiLumi Design Study, with 377 p-m by US Labs and 159 by KEK (Magnets, CC, AP) 163 FTE-y Dec201114

Dec New baseline to follow the new EU strategy for HEP! Goal: HL-LHC approved by 2013 CB of 17 Nov 2011, message from President of Council, Prof. Spiro: PDR needed in preliminary form by Oct 2012, endorsed by SAC and MAC, approved by CERN Mngt for Council and HEP strategy Group (final step : Council Bruxelles June 2013) CB of 17 Nov 2011, message from President of Council, Prof. Spiro: PDR needed in preliminary form by Oct 2012, endorsed by SAC and MAC, approved by CERN Mngt for Council and HEP strategy Group (final step : Council Bruxelles June 2013) Need to fix choice earlier

Malta Workshop14-16 October TeV c.o.m Dec Magnet design: very challanging but not impossible. 300 mm inter-beam Multiple powering in the same magnet (and more sectioning for energy) Work for 4 years to assess HTS for 2X20T to open the way to 16.5 T/beam. Otherwise limit field to 15.5 T for 2x13 TeV Higher INJ energy is desirable (2xSPS) The synchrotron light is not a stopper by operating the beam screen at 60 K. The beam stability looks « easier » than LHC thanks to dumping time. Collimation is possibly not more difficult than HL-LHC. Reaching 2x10 34 appears reasonable. The big challenge, after main magnet technology, is beam handling for INJ & beam dump: new kicker technology is needed since we cannot make twice more room for LHC kickers.

Dec EC - FP7 EuCARD2 joint research activity WP10 : Future Magnets : WP10 : Future Magnets : T HTS Dipole Magnets 40 mm bore Accelerator Quality 5 T HTS Dipole Magnets 40 mm bore Accelerator Quality To be tested as insert in existing 13 T magnet To be tested as insert in existing 13 T magnet KEK and Univ. of Kyoto (and 5 US labs & Univ) declared associate collaborators. Interest in YBCO technology. KEK and Univ. of Kyoto (and 5 US labs & Univ) declared associate collaborators. Interest in YBCO technology. BeneficiaryTotal Person- Months Total Personnel direct costs Total Personnel indirect costs Total Sub- contracting cost Total Consumable and prototype direct costs Total Travel direct costs Total Material and travel indirect costs Total direct costs Toal indirect costs Total costs (direct +indirect) Total EC requested funding CERN120 1,129, , ,000 71, ,600 2,000,740 1,200,444 3,201, ,385 CEA54 321, , ,000 20, , , , ,805 INPG43 141,384 84, ,000 8,000 12, ,384 96, , ,672 INFN39 144,495 86, ,000 14,000 86, , , , ,752 KIT16 94, , ,000 10, , , , ,061 SOTON 16 89,680 79, ,000 10, ,680 79, ,495 87,998 UNIGE ,872 65, ,000 4,000 32, ,872 98, , ,239 UT ,580 78, ,000 8,000 34, , , , ,435 BHTS , , ,000 4, , , , ,003 TUT 8 37,757 22, ,000 7,200 49,757 29,854 79,612 31,347 DTI 10 66,687 46, ,000 6, ,687 46, ,368 58,393 TOTAL: 376 2,490,479 1,750, ,492, , ,400 4,149,479 2,446,342 6,595,820 1,700,091

What is the possibile for HE-LHC? Dec US 16 T small dipole EuCARD 13 T large dipole+ 18 T small insert US 13 T Quads FP7-HiLumi US NbSn-HTS development T dip final proto & Industrialization Final delivery Magnets HE-LHC HE-LHC start-up HE-LHC preliminary study HTS for HE-LHC: yes.or.no LARP 11 T long quad EuCARD R&D Industry contracts, start constrution US basic programs and LARP R&D EU FP6-CARE-NED EuCARD2 full bore dipole HTS T R&D dipole models and prototypes

Dec HiLumi (and HE) LHC : the best use of the (renovated) existing infrastructure LHeC ?