The High Luminosity LHC Project Lucio Rossi HLLHC

The High Luminosity LHC Project Lucio Rossi HL-LHC Project Leader QUACO Open Market Consultation – CERN – 30 March 2016

Content § § § Project motivation Project goals Main LHC modification Project documentation Hi. Lumi LHC point of view on QUACO L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 2

Evolution of LHC toward HL-LHC Technical limits to lumi increase (Machine & Experiments) L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 3

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. Concept of ultimate performance (use of existing magin) defined: Lult 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… L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 4

Nominal upgrade parameters 3000 fb-1 would be reached in 2037 L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 5

HL-LHC ultimate performance Ultimate lumi (not yet studied in details) - L = 5 7. 5 1034 cm-2 s-1 - Int. L = 3000 4000 fb-1 - Pile up 200 L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 6

Luminosity: the main ingredients Lint Beam current energy Beam size Levelling! L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 7

The backbone of the upgrade: the new magnet triplet Smaller larger IT aperture LHC has better aperture than anticipated: now all margin can be usedreaching < 35 -40 cm (55 cm being the nominal) L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 8

Hi. Lumi LHC: one of the largest accelerator under construction ATLA S CMS Dispersion Suppressor (DS) Modifications 1. In IP 2: new DS collimation in C. Cry. 2. In IP 7 new DS collimation with 11 T + Cryogenics, Protection, SC Links, Interface, Vacuum, Diagnostics, Inj/Extr, new infrastruct. Matching Section (MS) Interaction Region (ITR) Complete change and new lay-out in IP 1 -IP 5 1. TAS 1. TAN 2. Q 1 -Q 2 -Q 3 2. D 2 3. D 1 3. CC 4. All correctors 4. Q 4 5. W-shielding 5. All correctors 6. Q 5 (Q 6 @1. 9 K) > 1. 2 km of LHC 7. MQ in P 6 @ 1. 9 K !! L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 8. New collimators 9

In-kind contribution (construction or R&D for HL-LHC hardwware) ATLAS CMS Q 1 -Q 3 : R&D, Design, Prototypes and in-kind USA D 1 : R&D, Design, Prototypes and in -kind JP MCBX : Design and Prototype ES HO Correctors: Design and Prototypes IT D 2 Design IT Q 4 : Design and Prototype FR CC : R&D, Design and in-kind USA & UK (UK for SPS) L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 10

But works are all around the ring… Cryo@P 1 -P 5 Cryo@P 4 New TAS and VCX Beam diagnostics BGV L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 11

Information on the project: Hi. Lumi book (more S&T oriented) L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 12

PDR (Preliminary Design Report) Preliminary version delivered to FP 7 on 30 Nov 2014 Cleaned-up version ready spring 2015 (long tedious editing for yellow paper: thanks to I. Bejar). Published as yellow paper TDR_v 0 : delivered to FP 7 -Hi. Lumi EU in November. It si the most updated document accessible via web. It will included also Tech Infrastructure by summer. nd C&SR TDR_v 1 : completed. L. by summer 2017, OMC after the 2 Rossi: Hi. Lumi @ QUACO - CERN 30 March 2016 13

Industry Workshop : Superconducting Technologies for Next Generation of Accelerators, 4 -5 Dec 2012 @ CERN Globe https: //indico. cern. ch/event/196164/page/972 -home 101 participants, 42 from 21 companies L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 14

Hi. Lumi LHC goes to Industry, 26 June ‘ 15: 143 attendants! https: //indico. cern. ch/event/387162/ L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 15

Strategy for construction § CERN (and US, CEA, INFN, CIEMAT, KEK…) builds models/prototypes in house of the new types of equipments, purchasing components in Industry: § § § Q 1 -Q 2 -Q 3 Quads and 11 T dipoles in Nb 3 Sn ( 40 magnets) Q 4 single bore, D 1, MCBX, HO correctors, all in Nb-Ti Crab cavities Collimators D 2 may be an exception (model/proto directly in industry) § Then we try to push to Industry ASAP for final prototypes validation and mini-series. § Keeping final mechanical assembly in house for Nb 3 Sn as well as cryostating for all. § Design is special, custom; very small series and a lot of variants… L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 16

Reason for QUACO: Q 4 is an ideal test bed Access to EU resources Use of QUACO to widen the EU Magnet Industry panorama § EU projects put a lot of constraints § Also requires much documentation § However it makes available certain resources (4. 6 M€) that we want mostly give back to EU Industry § Disseminate accelerator magnet design in EU (our basic desing is a good starting point) § Increase competition, trying not to disfavor SME § Favoring dissemination of construction competence and also tooling in EUU Industry § For this we are to pay a price: two prototypes instead of one, more follow up. L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 17

The various magnets for Hi. Lumi Triplet QXF (LARP and CERN) Orbit corrector (CIEMAT) Separation dipole D 1 (KEK) Corrector sextupole (INFN) Recombination dipole D 2 (INFN design) Q 4 (CEA) Cross-sections in scale Skew corrector (INFN) Corrector octupole (INFN) E. Todesco, HL WP 3 Leader @Hi. Lumi 27. 10. 15 Corrector dodecapole (INFN) Corrector decapole (INFN) L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 18

Q 4 underwent a major change in summer 2015 § Q 4 change § Initial studies considered either a double layer or a single layer § Single layer advantage: cable free of charge (reusing shorter lengths of LHC dipole cable) § Double layer advantage: power converters free of charge (reusing 6 k. A power converters), less current to bring in the tunnel § Decision to change to double layer in June 2015 § One year delay, compatible with schedule § PCP EU initiative [M. Losasso] providing funds for prototype E. Todesco, HL WP 3 Leader @Hi. Lumi 27. 10. 15 L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 19

What after QUACO? § QUACO will give us two full length prototypes of Q 4 by beginning of 2020 § Then we will tender four Q 4 magnets plus spares (most probably two further units) § The tender may be done by CERN directly or by a collaborating Institutes for CERN (CEA? ) § The tender for Q 4 may be simultaneous or preceeded by tender for a few LHC MQ (main quadrupoles, similar size and same technology than of Q 4), under LHC consolidation program L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 20

You are welcome to embark in this adventure. . L. Rossi: Hi. Lumi @ QUACO OMC - CERN- 30 March 2016 21