2. LIU project
M. Meddahi
LIU Project Team: G. Rumolo, J. Coupard, H. Damerau, A. Funken, S. Gilardoni,
B. Goddard, K. Hanke, A. Lombardi, D. Manglunki, B. Mikulec, E. Shaposhnikova, M. Vretenar

3. Introduction Activities Outlook Outline Mandate Organisation Timelines
Baseline and Options
Outlook

4. LIU Project Definition
Mandate (December 2010)
“The LHC Injectors Upgrade should plan for delivering reliably to the LHC the beams required for reaching the goals of the HL-LHC. This includes LINAC4, the PS booster, the PS, the SPS, as well as the heavy ion chain.”
Implementation
The LIU Project will:
Analyze the status of the injectors and the HL-LHC requirements,
Propose an upgrade path for the injectors, exploiting the work done by the Task Forces on the „PSB energy upgrade“ and „SPS upgrade“ and by the Working Group on the SPS upgrade,
Organize the upgrades (WBS with resources and planning) and take care of their implementation,
Take care of hardware and beam commissioning.

5. LIU Website

6. Project organisational matrix
Accelerators and Technology Sector
Director : Frédérick Bordry
LIU Project
Project Leader Malika Meddahi
Deputy Project Leader Giovanni Rumolo
LIU Project Safety Officer
A. Funken
LINAC4 Project
Project Leader M. Vretenar
Deputy Project Leader A. Lombardi
LIU Project Team
J. Coupard, A. Funken, S. Gilardoni, B. Goddard,
K. Hanke, M. Meddahi, G. Rumolo, M. Vretenar
LIU PSB coordination
Activity coordinator: K. Hanke
Deputy coordinator: B. Mikulec
LIU PS coordination
Activity coordinator: S. Gilardoni
Deputy coordinator: H. Damerau
LIU SPS coordination
Activity coordinator: B. Goddard
Deputy coordinator: E. Shaposhnikova
LIU ION coordination
Activity coordinator: S. Gilardoni
Deputy coordinator: D. Manglunki
Coordination meeting on Thursday at 10:30
Coordination meeting on Tuesday at 15:30
Coordination meeting on Wednesday at 10:30
Coordination meeting : bi-monthly
LIU Planning & installation coordination
Activity coordinator: J. Coupard
Deputy coordinator: S. Mataguez
Coordination meeting: bi-monthly
1 November 2014
Edms Id
LIU-PM-PP-0030
Complete LIU Work Breakdown EMDS Id LIU-PM-QA-0007

7. Work Coordination ~1/week Minutes and all documentations
in INDICO and EDMS

8. Work Breakdown Structure
EMDS ID LIU-PM-QA-0007
LIU Work Breakdown Structure 1
LIU project BC
Malika Meddahi - DPL Giovanni Rumolo
LIU 1
62011
Management activities (EVM, APT, MTP, EDMS…)
Malika Meddahi, Giovanni Rumolo
LIU 2
Planning activities and general technical coordination
Julie Coupard
LIU 3
Safety - Project Safety Officer (PSO)
Anne Funken - repl.: Marc Tavelet
LIU 4
Quality assurance
LIU 5
Design office-Fabrication-Subcontracting-Materials (EN-MME)
Serge Mathot
LIU 6
Integration
Yvon Muttoni
LIU 7
Project team meetings
Giovanni Rumolo
LIU 8
Reviews - Conferences
Cecile Noels 2
LIU-PSB
Klaus Hanke
LIU-PSB 1
67020
Management
Klaus Hanke + Bettina Mikulec
LIU-PSB 2
61020
PSB Beam dynamics
Elena Benedetto
LIU-PSB 3
99281
Magnets
Antony Newborough
LIU-PSB 4
RF systems
Alan Findlay
LIU-PSB 5
Power Convertors
Serge Pittet
LIU-PSB 6
64020 to 64023
Beam instrumentation
Jocelyn Tan
LIU-PSB 7
Existing BC
Beam Intercepting Devices
D. Grenier - Alternate Alessandro Masi
LIU-PSB 8
99271
Vacuum System
Jan Hansen
LIU-PSB 9
LINAC4 to PSB transfer line and PSB injection systems
Wim Weterings
LIU-PSB 10
PSB Extraction system and PSB-PS transfer line
Jan Borburgh
LIU-PSB 11
66020
Controls
J. Betz
LIU-PSB 12
54247
Electrical Systems
Stefano Bertolasi
LIU-PSB 13
53661
Cooling and Ventilation
Michel Obrecht
LIU-PSB 14
54360
Installation, Transport and handling
Caterina Bertone, Jean Louis Grenard
LIU-PSB 15
Civil Engineering
Luz Anastasia Lopez-Hernandez
LIU-PSB 16
Radiation Protection
Robert Froeschl
LIU-PSB 17
99290
Machine Interlocks
Bruno Puccio
LIU-PSB 20
61021
Survey
Tobias Dobers
LIU-PSB 21
67021
Commissioning and Operation
Bettina Mikulec
LIU-PSB 22
Dismantling
LIU-PSB 23
Half-Sector Test + Stripping Foil Test 3
LIU-PS
Simone Gilardoni 4
LIU-SPS
Brennan Goddard 5
LIU-ION

9. Quality assurance

10. Budget control
CtC 190 MCHF

11. Timelines of the LIU project
LIU (machine and simulation) studies during Run 2 until LS2
Key dates for pending decisions until 2016
LIU installations and hardware works mainly during LS2
Beam commissioning of LIU beams
Pb ion beams need to be ready by 2020 ion run
Proton beams during Run 3 to be ready after LS3 2
Protons
(E)YETS
Ions
Long Shutdown

12. LIU-IONS target: 7x nominal peak luminosity!
Beam energy
Achieved in 2011
5x1026 Hz/cm2
3.5 Z TeV
LIU-IONS
7x1027 Hz/cm2
7 Z TeV
RF capture
(Coasting beam)
35% loss at max. extracted intensity needs to be
understood and reduced
BHN current [100A]
Source & Linac3
-> LEIR
-> PS
-> SPS
Extraction
@ 2880ms
B-field

13. LIU proton target  HL-LHC beam parameters
25 ns
N (x 1011 p/b)
e (mm)
Bl (ns)
Achieved in 2012
1.2
2.6 (std)
1.5
HL-LHC
2.3
2.1
1.7
Injectors must produce 25 ns proton beams with about double intensity and higher brightness
A cascade of improvements is needed across the whole injector chain to reach this target

14. Linac4 will replace Linac2
Linac2  Linac4
Linac4 will replace Linac2
H- injection into PSB at 160 MeV
Linac4 is being commissioned stage by stage Emittance measurements agree with code predictions
Half-sector test planned for June 2016 to “simulate” injection into PSB with the real equipment
Simulations
Slit-and-grid measurements

15. Main means to achieve the target HL-LHC proton beam parameters
PSB:
Double brightness with injection from Linac4
Acceleration to 2 GeV with upgraded main C02+C04 RF systems or replacement by Finemet cavity based RF system, and new main power supply
PS:
Injection at 2 GeV
Beam production schemes
Feedback systems:
Newly installed wide-band longitudinal feedback against CBI
Transverse feedback against headtail and e-cloud instabilities
SPS:
Power upgrade of the main 200 MHz RF system (plus double available 800 MHz voltage, and new LL RF system)
Electron cloud mitigation through a-C coating (baseline) or beam induced scrubbing, possibly with doublets (decision mid-2015)
High Bandwidth (intra-bunch) transverse feedback system (CERN-USLARP collaboration): fighting ecloud instabilities; better beam quality during scrubbing runs – Good first results in 2013 to be continued.

16. Standard scheme (72b trains) presently
HL-LHC
HL-LHC

17. Standard scheme (72b trains) after LIU
With Linac 4
LIU upgrades
SPS 200 MHz upgrade
SPS e-cloud mitigation
PSB-PS transfer at 2 GeV
Limitations standard scheme
SPS: longitudinal instabilities + beam loading
PSB: brightness
Performance reach
2.0x1011p/b in 1.9μm 450GeV)
1.9x1011p/b in 2.3μm (in collision)
HL-LHC
after connection
of Linac4

18. Can we do it better for HL-LHC?
Higher bunch current from the SPS (larger longitudinal emittance at flat top)
Higher number of bunches into LHC
Higher brightness from injectors
BCMS beams
High damage potential for beam intercepting devices in the SPS, transfer lines and LHC

19. BCMS scheme (48b trains) with LIU
High brightness comes with:
High damage risk of protection devices in SPS, transfer lines and LHC
Choice of material is challenging
HiRadMat facility will use SPS beam at 450 GeV to test
With Linac 4
LIU upgrades
SPS 200 MHz upgrade
SPS e-cloud mitigation
PSB-PS transfer at 2 GeV
Limitations BCMS scheme
SPS: longitudinal instabilities + beam loading
PS: space charge
SPS: space charge
Performance reach
2.0x1011p/b in 1.37μm 450GeV)
1.9x1011p/b in 1.65μm (in collision)
HL-LHC

20. Links with other projects / activities
Simple with HL-LHC (single frontier):
Beam characteristics at injection in LHC (work in progress)
Planning: the injectors’ upgrades have to be finalized ~one LS before the HL-LHC upgrades are implemented in the collider.
Complex with Consolidation (multiple frontiers):
Critical consolidation items have been included in LIU, to get full control of planning and prioritization,
But many equipements remain financed from both projects.
Progress on a number of consolidation items is critical for LIU installations (e.g.: cable removal/replacement campaign).
With new requests of other users of the injectors:
Need to be informed and to analyse the consequences within LIU (neutrinos, 2 GeV/900 ms for HIE-ISOLDE, ...)

21. One example – LIU-SPS external beam dump feasibility study
ECX5
DUMP BEAM
ECA5
CORE
CONNECTION TUNNEL
JUNCTION
CAVERN
SPS TS55
DUMP TUNNEL
DUMP CAVERN

22. One example – LIU-SPS external beam dump feasibility study
Transport and Handling – EN/HE
Industrial controls – EN-ICE
Cooling and ventilation – EN/CV
Electrical systems – EN/EL
ECX5
DUMP BEAM
CORE
Dump design EN/STI
Mechanical & Materials engineering – EN/MME
Integration – EN/MEF
Metrology – EN/MEF
Planning, activity coordination - EN/MEF
Database and configuration – EN/MEF
Resources, general management - EN/GMS

23. Normalized transverse emittance @SPS extraction
Conclusions
LIU proton beams
(after LS2)
Intensity
@SPS extraction
Normalized transverse extraction
LIU - standard scheme
(72 bunches/PS batch)
2x1011 p/b
1.9 μm
HL-LHC goal
2.3x1011 p/b
2.1 μm
LIU baseline program established to ensure production of LHC proton beams with parameters close to HL-LHC request
Additionally, promising options identified and under study to increase intensity and/or brightness of LIU beams delivered to LHC
Big challenges ahead to fulfil the luminosity goals of the ion runs

24. THANKS to the EN department and all its groups
for the support and collaboration in many LIU activities