1. High Energy High Intensity Hadron Beams
Network
coordinated by W. Scandale and F. Zimmermann
High Energy High Intensity Hadron Beams
CARE meeting, Paris, April 09, 2008

2. CARE meeting, Paris, April 9, 2008
CARE-HHH network
Coordinate and integrate the activities of the accelerator and particle physics communities in a worldwide context, towards achieving superior High-Energy High-Intensity Hadron Beam facilities for Europe
road map for the upgrade of the European accelerator infrastructure (LHC and GSI accelerator complex)
coordinate activities and foster future collaborations
dissemination and outreach
WP1: Advancements in Accelerator Magnet Technologies (AMT)
WP2: Novel Methods for Accelerator Beam Instrumentation (ABI)
WP3: Accelerator Physics and synchrotron Design (APD)
Participating institutes:
CEA, CERN, CSIC-CIEMAT, CCLRC, DESY, GSI, INFN, PSI, TEU, WUT
Associated institutes:
CRPP, ENEA, TUBE, ESRF, UPSA, FZK, TEMF, US-LARP (BNL,FNAL,LBNL,SLAC), JINR, IHEP, KEK
Additional collaborations: Texas A&M U., U. Geneva, U. Bologna
W. Scandale & F. Zimmermann
CARE meeting, Paris, April 9, 2008

3. CARE meeting, Paris, April 9, 2008
activities in 2008
Planned events:
3 main workshops (one per WP)
3 topical workshops (for APD): crab cavities, crystal collimation, electron cloud
1 GSI-CERN bilateral HHH meeting
Participation in other international workshops:
ICFA Beam Dynamics Mini-Workshop on deflecting/crabbing cavity applications in accelerators, Shanghai April 2008; Yi-Peng Sun,HHH fellow at CERN, will present the LHC crab cavity effort with HHH support
International workshop on Multipactor, Corona and Passive Intermodulation, "Mulcopim", in Valencia September 2008, organized by ESA; the workshop will address electron-cloud effects andtheir prevention in spacecrafts and accelerators; HHH will send 4 persons
Channeling 2008, Erice, November The workshop will address crystal-particle interaction phenomena
Dissemination and outreach:
Various workshops to be organized by/with physicists from LHC experiments
Contributions to EPAC’08, HB2008, and other events; seminars at EU universities
Further extensions of SC & accelerator physics codes databases
Maintenance and development of HHH web sites
Exchanges and education:
Visits of CERN accelerator physicist to other labs
Support of EU or non-EU (US, J, Russia,...) scientists for visits to CERN
Support of one PhD student and of two summer students working for the SC database in AMT and of one fellow for the APD work-package
W. Scandale & F. Zimmermann
CARE meeting, Paris, April 9, 2008

4. CARE meeting, Paris, April 9, 2008
workshops since CARE07
19-20 November: CARE-HHH-AMT workshop on Heat Generation and Heat Transfer in Superconducting Magnets (THERMOMAG’07), Paris, 2 days (about 70 participants)
minimizing and evacuating heat in the next generation of superconducting magnets for high intensity particle accelerators, such as the IR magnet for the LHC luminosity upgrade and the fast cycling magnets for FAIR and for the LHC injector chain upgrade;
identify the state of the art on
(1) cooling techniques (fluids and regimes),
(2) heat transfer mechanisms,
(3) modeling of heat transfer from coils to cooling system,
(4) heat transfer experiments; identify a common set of thermal design criteria
W. Scandale & F. Zimmermann
CARE meeting, Paris, April 9, 2008

5. CARE meeting, Paris, April 9, 2008
workshops since CARE07
5th CARE-HHH-ABI workshop on Schottky, Tune and Chromaticity Diagnostic (with real time feedback) (about 30 participants),  Chamonix, France, December 2007
Joint BNL/CARE-HHH/US-LARP workshop on LHC crab cavities (LHC-CC08), BNL, February 2008 (about 30 participants) - 3 persons attended with HHH support
W. Scandale & F. Zimmermann
CARE meeting, Paris, April 9, 2008

6. LHC-CC08 joint BNL/CARE-HHH/US-LARP workshop, BNL, 25-26 Feb. 2008
use KEKB experience
plan R&D for crab cavities
phased approach: (1) prototype construction [SBIR]
(2) “global” crab cavity test in IR4,
(3) “local” crab cavities in IR1 & 5
international collaboration
K. Oide
B. Palmer
R. Calaga

7. Deflecting Cavity Workshop
ICFA Beam Dynamics Mini-Workshop on Deflecting/Crabbing Cavity Applications in Accelerators
April 23-25, 2008 at SINAP, Shanghai
Topics:
deflecting/crabbing cavity R&D in the applications of:
high energy colliders (ILC, LHC, KEK-B, CLIC, …)
generation of short x-ray pulse in synchrotron light sources
beam manipulations, emittance exchanges and diagnostics
W. Scandale & F. Zimmermann
CARE meeting, Paris, April 9, 2008

8. CARE meeting, Paris, April 9, 2008
Mulcopim 2008
international workshop on Multipactor,Corona,&Passive Intermodulation Valencia, Sept.’08, organized by European Space Agency (ESA)
meeting place for researchers, designers, test engineers and users of any space high-power RF hardware
design and testing of high power RF hardware for the prevention of RF breakdown (Multipactor and Corona) and Passive Intermodulation
main topics:
•  high power RF hardware design •  innovative testing techniques (facilities, detection methods, etc...) •  theoretical investigations in the multipactor physics •  surface coating & secondary emission: measurements and theory •  simulation and prediction tools •  multicarrier operation •  electron cloud effects •  multipactor in particle accelerators •  power and frequency trends •  harmonisation and standardisation
W. Scandale & F. Zimmermann
CARE meeting, Paris, April 9, 2008

9. CARE meeting, Paris, April 9, 2008
Channeling 2008
international workshop on Charged and Neutral Particles Channeling Phenomena, October 25 - November 1, Erice (Trapani - Sicily), Italy , organized by INFN-LNF in cooperation with HADRON PHYSICS I3 , CARE HHH , and LPI RAS
topics:
coherent scattering of relativistic charged particles in matter
radiation of relativistic charged particles in periodic structures (coherent bremsstrahlung, channeling radiation, resonant transition radiation, diffraction radiation, parametric x-ray radiation, LPM effect)
crystal channeling, volume capture and crystal reflection of positive ions: theory and experiments; crystal assisted collimation in hadron colliders: proposals and experimental observations
channeling of radiations in capillary systems (micro- and nano-channeling, nanotubes, nanoporous)
novel types of sources for electromagnetic radiation (FEL, Thomson scattering, laser plasma acceleration)
applications of channeling phenomena (bending of the beams, positron sources, powerful radiation sources, x-ray waveguides, capillary/polycapillary optics, novel x-ray table-top instruments)
W. Scandale & F. Zimmermann
CARE meeting, Paris, April 9, 2008

10. deliverables & milestones
2004: HHH & HHH-APD web site => OK
2005: creation of first web-based beam dynamics code repository => OK
2007: web based database for s.c. cables and magnets concluded => OK
milestones:
web reference for IR optics => OK
booster synchrotron optics => in progress
structured list of intensity limits => OK
scaling laws for magnet and cryogenic cost => 2008
2 summer students
+ 1 doctoral student
for further updates
W. Scandale & F. Zimmermann
CARE meeting, Paris, April 9, 2008

11. recent publications & presentations
S. Hasan, Bent Silicon Crystals for the LHC Collimation: Studies with an Ultrarelativistic Proton Beam, Master Thesis, U of Insubria, CARE-Thesis
L. Rossi and E. Todesco, Electromagnetic design of superconducting dipoles based on sector coils, submitted to Phys. Rev. ST Accel. Beams 10, CARE-Pub
I. Santiago Gonzalez, Loss of Longitudinal Landau Damping in the LHC Injectors, CARE-Note HHH
F. Zimmermann, W.Scandale, Summary of IR07 Workshop, LHCU mtg,
F. Zimmermann, W.Scandale, Summary of IR07 Workshop, LIUWG mtg,
F. Zimmermann, W. Scandale, Summary of BEAM'07 Workshop,  Summary of IR07 Workshop, PAF meeting,
L. Bottura, R. Maccaferri, C. Maglioni, V. Parma, G. de Rijk, L. Rossi, W. Scandale, L. Serio, D. Tommasini, Conceptual Design of Superferric Magnets for PS2 , CARE-Note HHH
M. Pivi, Electron Cloud R&D for Future Linear Colliders, CERN, AP Forum, 20 March 2008; M. Pivi, CMAD Simulation Code Status, CERN discussion, 19 March 2008
F. Zimmermann, Status, Schedule and Future of LHC Accelerator, JPS Meeting, Osaka, Kinki University, 24 March 2008
W. Scandale et al, Collimation with Bent Crystals: the H8RD22 Experiment, CARE-Note-2007-???-HHH
W. Scandale & F. Zimmermann
Care meeting, Paris, April 9, 2008

12. CARE meeting, Paris, April 9, 2008
planned AMT workshop
19-23 May: CARE-HHH-AMT workshop on Accelerator Magnets, Superconductor, Design and Optimization (WAMSDO’08), CERN, 5 days
Main topics:
summary of magnet targets and specifications for future accelerators and accelerator upgrades, in particular for the LHC upgrade;
advances on low- and high-Tc s.c. materials and cables, with special attention to progress in Nb3Sn, low-loss Nb-Ti and coated conductors;
design, optimization and R&D for s.c. magnets and other devices, in particular the high field dipoles and quadrupoles for the LHC IR and fast cycled synchrotron magnets.
W. Scandale & F. Zimmermann
CARE meeting, Paris, April 9, 2008

13. CARE meeting, Paris, April 9, 2008
APD exchanges
3-week visit by Mauro Pivi to CERN for electron-cloud studies in March 2008, mostly supported by HHH:
completion and benchmarking a novel simulation code "CMAD" for the detailed modeling of electron-cloud effects in LHC &SPS against simulations by the simpler code "HEADTAIL" considering a toy model
setting up of serial and parallel CMAD electron-cloud computations for the actual MAD optics of both LHC and SPS on the CERN linux cluster
discussions on possible electron-cloud countermeasures for the SPS upgrade, including the pertinent R&D program undertaken at PEP-II and CESR-TA
W. Scandale & F. Zimmermann
CARE meeting, Paris, April 9, 2008

14. CARE meeting, Paris, April 9, 2008
2007 crystal experiments
Seven weeks of CERN H8-SPS runs
goals:
test multi-strip crystals,
check the effect on electron and positrons,
dry-run for the equipment to be installed in the SPS
Participation in crystal collimation experiment at FNAL
Proposal of 2008 test in the CERN-SPS ring
Support:
CARE-HHH , INTAS-CERN, INFN-NTA,
Russian Foundation for Basic Research, CERN AB
and AT Departments, FNAL
W. Scandale & F. Zimmermann
CARE meeting, Paris, April 9, 2008

15. Care meeting, Paris, April 9, 2008
2008 gantt chart - 1
W. Scandale & F. Zimmermann
Care meeting, Paris, April 9, 2008

16. Care meeting, Paris, April 9, 2008
2008 gantt chart - 2
W. Scandale & F. Zimmermann
Care meeting, Paris, April 9, 2008

17. Conclusions 2008 HHH program
numerous high-impact workshops concluding 5 years of HHH activity, preparation of summary report
maintain focused efforts in many frontier areas
- crystal collimation, slim magnets, e-cloud suppression, LHC crab cavities, beam-beam compensation, novel optics design schemes, fast cycling s.c. magnets, new beam diagnostics
results benefit global accelerator community
- code repository, s.c. database, intensity limits
sustained strong dissemination & training effort
- mutual visits between partner labs, publications, seminars, web pages, many summer students and graduate students
W. Scandale & F. Zimmermann
CARE meeting, Paris, April 9, 2008