1. BE/ABP Group Meeting 2017
G. Arduini

2. Injectors and LHC: 2016 and Status Projects and Studies: Status
Outline
Injectors and LHC: 2016 and Status
Projects and Studies: Status
ABP 2017 and beyond

3. LHC and Injectors 2016
Mastering of the Beam Dynamics in the LHC and Injectors
Excellent Machine Availability
YOUR DEDICATION

4. All injectors now restarted:
Injectors Status
All injectors now restarted:
Linac2 running with spare source after some teething problems: gained more understanding on the operation of the source
(Another) large vacuum leak solved with a secondary vacuum  looking forward to Linac4
New TIDVG (SPS high energy beam dump) behaving well  no intensity limitations for the SPS beams (including the LHC ones)
Xenon beam delivered to PS
REX-ISOLDE will start delivering radioactive beam during the first week of July. intense and heavy schedule until the end of the year, with several beams to set-up

5. Machine restarted with ATS optics at b* = 40 cm:
LHC Status
Machine restarted with ATS optics at b* = 40 cm:
Pushed ramp and squeeze down to b* = 1 m
Improved normalized dispersion at Roman Pots for CT-PPS
Commissioning successful (down to 30 cm)
Optics correction, collimation impeccable (as usual)
Scrubbing ongoing with long trains (Sector 12 to be re-conditioned  keep a particular attention to it to follow conditioning after warm-up)
Intensity ramp-up (beyond 600 bunches) to continue after the scrubbing

6. Projects
LIU:
LINAC4 Commissioning up to 160 MeV completed  Moved to the operational phase
Half-Sector Test Completed and Reliability run to start
H- source is operating very reliably but still work to be done to reach the nominal current  plan being established
SPS a-C coating of almost a sextant
LIU/HL-LHC baseline performance/requirements are now matching both for protons and ions
LIU-Ions beam parameters demonstrated out of the PS
Work on reproducibility and losses in the SPS
Progress in the understanding of the LHC beam losses at the beginning of the ramp of the SPS

7. Projects
Re-baselining following cost increase of the civil engineering  reduction of the number of crab cavities and no upgrade of the Q4 magnet (MQY)
Slight reduction of the integrated performance
Working on increasing performance (collimation, crossing angle based on LHC experience)
Finalization of the specifications and validation of the choices for the baseline and alternative scenarios
ATS optics in the LHC
Circuits and powering
Preparation of the SPS test for the crab cavities
Alignment working group created and starting
BBLR compensation
Successful Cost and Schedule (October 2016) and Performance (January 2017) Reviews  HL-LHC formally approved by Council

8. Projects
Issues with:
the insulation transformer of the H- source used to commission the beam at low energy
Electron cooler (delays on the magnetic system provided by industry)
In spite of that obtained circulating beam and captured it with reasonable lifetime  Working on reproducibility, acceleration, injection of pbar

9. Studies
The CTF3 experimental programme is completed and has validated the main CLIC choices.
Critical progress in BDS tuning with realistic imperfections and encouraging results in several other areas (RTML, Drive Beam Complex, Main injectors…)
Operation of the CALIFES linac as a facility (CLEAR) approved for 2 years (but with cap on manpower: 0.5 FTE/year from ABP)
Test of advanced beam instrumentation
Irradiation Facility (e.g. electronic components for ESA)
Test of new concepts (e.g. plasma lens)
Impedance measurements (e.g. wire scanners for the injectors)

10. Studies FCC: Medical applications: Physics Beyond Colliders:
Conceptual designs for FCC-hh, FCC-ee, FCC-eh are progressing  FCC week in Berlin
HE-LHC gaining momentum (and priority!) but a lot of work remaining to be done!  need to redirect some effort within FCC complement
Medical applications:
Feasibility Study for BioLEIR published
Contribution to the definition of a White Paper for Medical Applications
750 MHz RFQ commissioned with beam
Physics Beyond Colliders:
Contribution to the working groups
Need new ideas/solutions

11. Need to guarantee solid framework and thorough tests
Computing in ABP
Understanding of the performance of the accelerators and predictions for future projects relies on realistic simulations
Large number of codes developed within ABP but more and more used at CERN and in other laboratories
Need to guarantee solid framework and thorough tests
ABP Core activity spread across several sections  ABP Computing working group:
to favour synergies and harmonize the approaches
to coordinate requirements and needs in terms of IT support (e.g. High Performance Computing)

12. Scientific programme (based on ESPP) : 3 pillars
Full exploitation of the LHC:
successful operation of the nominal LHC until end 2023 (Run 2, LS2, Run 3)
construction and installation of the LHC upgrade: LIU and HL-LHC
Scientific diversity programme serving a broad community:
ongoing experiments and facilities at Booster, PS, SPS and their upgrades (ELENA, HIE-ISOLDE)
participation in accelerator-based neutrino projects outside Europe (presently mainly LBNF in the US) through CERN Neutrino Platform
Preparation of CERN’s future:
vibrant accelerator R&D programme exploiting CERN’s strengths and uniqueness (including superconducting high-field magnets, AWAKE, etc.)
design studies for future accelerators: CLIC, FCC (includes HE-LHC)
future opportunities of diversity programme: “Physics Beyond Colliders” Study Group
From DG presentation to SPC on 13/3/2017
Important milestone: update of the European Strategy for Particle Physics, to be concluded in May 2020

13. ABP Staff Departures Arrivals
E. Benedetto (31/01/2017)  End of LD contract
T. Pieloni (30/09/2016)  End of LD Contract  EPFL
A. Rossi (31/08/2016)  BE/BI
Arrivals
A. Huschauer (1/5/ HSS)
E. Mahner (1/4/2017 – HSL) from GSI
T. Persson (1/5/ HSS)
A. Valenza (1/6/2017 – ABP)
BE-ABP-HSI (Selection Board on 7/6/2017)
BE-ABP-LAT (Selection Board on 4/7/2017)
G. Roy  President of the Staff Association from 1/9/2016

14. BE-ABP
Group Leader: ARDUINI Gianluigi
Deputy: SCRIVENS Richard
Budget and Planning: LOMBARDI Alessandra
Team assistant: MASSONNET Sonia
VALENZA Alessia
Staff Association (President): ROY Ghislain
HSC
Hadron Synchrotrons Coherent effects
METRAL Elias
HSI
Hadron Synchrotrons Incoherent effects
PAPAPHILIPPOU Yannis
HSL
Hadron Sources
and Linacs
LOMBARDI Alessandra
HSS
Hadron Synchrotrons Single particle effects
GIOVANNOZZI Massimo
LAT
Lepton Accelerators and Test Facilities
CORSINI Roberto
STAFF
BERRIG Olav Ejner
BIANCACCI Nicolo
BUFFAT Xavier
IADAROLA Giovanni
LI Kevin Shing Bruce
RUMOLO Giovanni
SALVANT Benoit
BARTOSIK Hannes
EFTHYMIOPOULOS Ilias
FARTOUKH Stephane
SCHMIDT Frank
STERBINI Guido
BELLODI Giulia
BERTOLO Sebastien
DI LORENZO Francesco
KUCHLER Detlef
LALLEMENT Jean-Baptiste
LETTRY Jacques
MAHNER Edgar
MASTROSTEFANO Christian
O'NEIL Michael
SCHUH-ERHARD Silvia
WENANDER Fredrik John Carl
BRUCE Roderik
BURKHARDT Helmut
DE MARIA Riccardo
DENIAU Laurent
HUSCHAUER Alexander
JOWETT John
MEREGHETTI Alessio
PERSSON Tobias H.B.
REDAELLI Stefano
TOMAS GARCIA Rogelio
ZIMMERMANN Frank
CARLI Christian
HERR Werner
HOLZER Bernhard
LATINA Andrea
SCHULTE Daniel
SKOWRONSKI Piotr Krzysztof
In addition: 18 TECH, 26 DOCT, 38 Fellows and many collaborators (COAS, PJAS, VISC, ...). A GREAT ASSET!

15. ABP staff Green paper posts:
80 additional Limited Duration (LD) staff to mitigate shortage of personnel in some key areas at CERN (18 in BE)
No permanent increase
Next: Coherent Effects theory to come in 2018

16. ABP staff
ABP (and in general BE) continues to hire!  Vital to continue and attract new members
At present 13 LD out of 49 staff
New contract policy helps in guaranteeing retention of some of the staff otherwise very difficult
1 IC awarded in 2016 (B. Salvant)
Expect: 6 IC slot in 2017 and 9 IC/year in the period in the department  tbc at the next BE retreat (26-27 June)

17. We can greatly contribute to forge the future of CERN
Challenges
We can greatly contribute to forge the future of CERN
Our expertise and original contribution is highly needed
Given the limited number of staff but huge asset in the younger colleagues and collaborators.
Collaboration
Coordination (i.e. no duplication of effort)
Flexibility
Sharing of knowledge
ARE MANDATORY
within the group and in the interaction with projects

18. Questions We are a group built on intelligent and dynamic people.
We want your feedback.
Now, via SLs, to Richard and myself

19. BBQ
Many thanks to:
Sonia, Section Leaders, Daniel, Dima, Edu, Foteini, Frank, Giovanni, Hannes, Jean-Baptiste, Lee, Michael, Nuria, Stefano, Xavier for the preparation of the meeting and of the BBQ.

20. BBQ starting at 12:00