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Network. coordinated by W. Scandale and F. Zimmermann. H igh Energy H igh Intensity H adron Beams. http://care-hhh.web.cern.ch/care-hhh/. CARE-HHH network.

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h igh energy h igh intensity h adron beams

Network

coordinated by W. Scandale and F. Zimmermann

High EnergyHigh IntensityHadron Beams

http://care-hhh.web.cern.ch/care-hhh/

HHH, CARE’07, CERN, October 29-31, 2007

care hhh network
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

HHH, CARE’07, CERN, October 29-31, 2007

activities in 2007
activities in 2007
  • Events:
  • 5 HHH workshops & 2 workshops ready to go in November 07
  • 2 HHH-US-LARP coordination meetings
  • 1 GSI-CERN CARE meeting
  • Dissemination and outreach:
  • 6 workshop proceedings completed
  • 1 invited and 1 contributed talk, and 9 papers presented at PAC07
  • 7 presentations at LHC-detector upgrade workshops/symposia/meetings
  • 2 seminars at SLAC and LBNL, 3 CERN & INFN management meetings, 3 departmental/project seminars
  • 4 articles in CERN Bulletin & CERN Courier & 3 HHH notes
  • HHH web sites maintained & developed
  • Exchanges and education:
  • several Russian, 2 US, 1 EU accelerator physicist, 3 representatives of European industry supported for HHH workshops
  • 1 EU scientist supported for 2-week visit to CERN
  • 5 doctoral students & 3 EU summer students recruited for summer 2007

HHH, CARE’07, CERN, October 29-31, 2007

workshops in 2007
workshops in 2007
  • 4th CARE-HHH-ABI workshop on Simulation of BPM Front-End Electronics and Special Mechanical Designs,  Lüneburg, Germany, 30 November - 1 December 2006, Proceedings CARE-Conf-06-087-HHH
  • Joint CARE-HHH-APD, CARE-ELAN, and EUROTeV mini-workshop on E-Cloud Clearing (ECL2), CERN, Geneva, 1-2 March 2007, Proceedings CARE-Conf-06-007-HHH
  • CARE-HHH-APD mini-workshop on Crystal Channeling for Large Colliders: Machine and Physics Applications (CC-2007), CERN, 22-23 March 2007 
  • US-LARP CARE-HHH mini-workshop on beam-beam compensation,  SLAC, USA, 2-4 July 2007, http://www-conf.slac.stanford.edu/larp
  • CARE-HHH-APD Workshop on LHC Injectors Upgrade and LHC Beam Parameters Upgrade including Francesco Ruggiero Memorial Symposium and CERN-GSI Meeting (BEAM'07), CERN, Geneva, 1-5 October, 2007

READY TO GO

  • CARE-HHH-APD Workshop on Interaction Regions for the LHC Upgrade, DAFNE and SuperB (IR'07), INFN Frascati, Italy, 7-9 November 2007
  • CARE-HHH-AMT Workshop on Heat Generation & Transfer in Superconducting Magnets (THERMOMAG), Paris, France, 19-20 November, 2007

HHH, CARE’07, CERN, October 29-31, 2007

major presentations
major presentations

INFN CSN1 Meeting, Frascati, 28 November 2006

- “H8-RD22 Experiment to test Crystal Collimation for the LHC” W. Scandale

LHCb Upgrade Workshop, Edinburgh, 11 January, 2007

- “LHC Upgrade Plan and Ideas - Scenarios and Constraints from the Machine Side,” invited talk, F. Zimmermann

Joint AB & LHC Project Seminar, CERN, 18 January 2007

- “Baseline Scenario for the LHC Luminosity Upgrade, summary of the CARE-HHH LHC-LUMI-06 workshop” W. Scandale, F. Zimmermann

ATLAS & CMS Detector Electronics Upgrade Workshop, CERN, March 2007

  • “Two Scenarios for the LHC Luminosity Upgrade” W. Scandale

LHC Project Seminar, CERN, 15 March 2007

- “H8-RD22 Experiment to Test Crystal Collimation for the LHC” W. Scandale

Beam-Beam Compensation Workshop, SLAC 2-4 July ‘07

  • W. Scandale & F. Zimmermann, Head-On Compensation in LHC
  • F. Zimmermann, Beam-Beam Effects for LHC and LHC Upgrade Scenarios
  • F. Zimmermann, Open Issues from the SPS Long-Range Experiments
  • J.-P. Koutchouk, Beam-Beam Aspect of a Possible Early-Separation Scheme
  • U. Dorda, Technological Issues of Wire Compensators, and two other presentations

HHH, CARE’07, CERN, October 29-31, 2007

pac07 presentations
PAC07 presentations

PAC07, Albuquerque, 25-29 June, ‘07

ORAL

- F. Zimmermann, LHC Upgrade Scenarios

  • W. Scandale, Observation of Proton Reflection on Bent Silicon Crystals at the CERN SPS

POSTERS

- E. Todesco, R. W. Assmann, R. de Maria, J.-P. Koutchouk, E. Metral, G. Sterbini, F. Zimmermann, A Concept for the LHC Luminosity Upgrade Based on Strong Beta* Reduction Combined with a Minimized Geometrical Luminosity Loss Factor

- E. Todesco, B. Bellesia, J.-P. Koutchouk, C. Santoni, Estimating Field Quality in Low-beta Superconducting Quadrupoles and its Impact on Beam Stability

- M. Aiba, M. Chanel, U. Dorda, R. Garoby, J.-P. Koutchouk, M. Martini, E. Metral, Y. Papaphilippou, W. Scandale, F. Zimmermann, V. Shiltsev, G. Franchetti, Space-Charge Compensation Options for the LHC Injector Complex,

- U. Dorda, F. Zimmermann, W. Fischer, V. Shiltsev, LHC Beam-Beam Compensation Using Wires and Electron Lenses

- R. Calaga, U. Dorda, R. Tomas, F. Zimmermann, K. Akai, K. Ohmi, K. Oide, Small Angle Crab Compensation for LHC IR Upgrade

- K. Ohmi, R. Calaga, W. Hofle, R. Tomas, F. Zimmermann, Beam-Beam Effect with an External Noise in LHC

- E. Benedetto, G. Rumolo, D. Schulte, R. Tomas, F. Zimmermann, G. Franchetti, K. Ohmi, M. Pivi, T. Raubenheimer, W. Fischer, K. Sonnad, J.-L. Vay, Modeling Incoherent Electron Cloud Effects

HHH, CARE’07, CERN, October 29-31, 2007

other key presentations
other key presentations
  • HCP2007 Elba, 29 May 2007

W. Scandale and F. Zimmermann, Scenarios for sLHC and vLHC(slides),

  • ALICE Seminar, 30 April 2007

W. Scandale, H8-RD22 Experiment: Progress on Ion Beam Focusing with Bent Crystals,

  • IoP Half-Day Meeting on Super-LHC, Liverpool 27 June 2007

J.-P. Koutchouk, LHC Accelerator Upgrade,

  • Meeting on Machine-Experiment Interface Issues for the LHC Luminosity Upgrade, 24 July 2007

F. Zimmermann, W. Scandale, LHC Machine Upgrade Parameters,

HHH, CARE’07, CERN, October 29-31, 2007

deliverables milestones
deliverables & milestones
  • deliverables
    • 2004: HHH & HHH-APD web site => OK
    • 2005: creation of first web-based beam dynamics code repository => OK
    • http://oraweb.cern.ch:9000/pls/hhh/code_website.startup
    • 2007: web based database for s.c. cables and magnets => OK, http://sdb.web.cern.ch/sdb
  • milestones:
    • web reference for IR optics => OK
    • http://care-hhh.web.cern.ch/care-hhh/SuperLHC_IRoptics/IRoptics.html
    • booster synchrotron optics => delayed to 2008
    • structured list of intensity limits => nearing completion
    • scaling laws for magnet and cryogenic cost => 2008

2 summer students

+ 1 doctoral student

1 summer student

HHH, CARE’07, CERN, October 29-31, 2007

recent publications
recent publications

J.-P. Koutchouk, L. Rossi, E. Todesco, A Solution for Phase-One Upgrade of the LHC Low-Beta Quadrupoles Based on Nb-Ti, April 2007, CARE-Note-2007-006-HHH

W. Scandale et al, High-Efficiency Volume Reflection of an Ultrarelativistic Proton Beam with a Bent Silicon Crystal, Phys. Rev. Lett. 98, 154801, CARE-pub-07-001 (2007)

O. Brüning, R. De Maria, R. Ostojic, Low Gradient, Low Gradient, Large Aperture IR Upgrade Options for the LHC Compatible with Nb-Ti Magnet Technology, CARE-Note-2007-007-HHH

R. Garoby, M. Benedikt, A. Fabich, F. Gerigk, Comparison of Options for the Injector of PS2, CERN-AB-2007-14, CARE-Note-2007-008-HHH

G. Sterbini, D. Tommasini, J.-P. Koutchouk, Layout VERSION 1 for the Early Separation Scheme in ATLAS, AT-MCS Internal Note 2007-04

HHH, CARE’07, CERN, October 29-31, 2007

slide10

WP1:

Advancements in

Accelerator Magnet Technologies

(AMT)

HHH, CARE’07, CERN, October 29-31, 2007

superconductors database sdb
Superconductors Database (SDB)

http://sdb.web.cern.ch/sdb

  • database structure complete
  • web interfaces complete
  • since January’07 collaboration with FNAL and BNL on magnet & cable data sharing
  • automatic tools, which import data from existing databases, e.g., for LHC, Tevatron and RHIC, to SDB core => OK
  • existing data incorporated in the DB

Courtesy E. Laface

HHH, CARE’07, CERN, October 29-31, 2007

sdb example
SDB example

Courtesy E. Laface

HHH, CARE’07, CERN, October 29-31, 2007

sdb example1
SDB example

Courtesy E. Laface

HHH, CARE’07, CERN, October 29-31, 2007

amt activity osom
AMT activity OSOM
  • design of 2 T pulsed superferric magnet, accordingly to indications of the CARE-HHH workshop ECOMAG 06
  • cable and coil in the iron configured to minimize loss;
  • conceptual design that dissipates less than 10 W/m in the superconducting coil, with warm iron (i.e. negligible loss power);
  • two variants: wide iron and compact version with correction coil, both suitable for a PS upgrade.
  • summary report completed
  • comparison of s.c. and n.c. options for fast cycling “PS2”

HHH, CARE’07, CERN, October 29-31, 2007

amt exchanges
AMT exchanges
  • F. Broggi (INFN-Milano) visited CERN for 4 weeks
    • Heat deposition in the low- region
    • energy deposition versus triplet length and IP distance.
    • precise FLUKA description of IR1 and IR5, including exact magnetic fields;
    • confirm the LUMI06 results with the latest IR FLUKA description;
    • explore other parts of the parameter space;
    • identify future activity (aperture, IR length, crossing angle)
  • E. Laface (CERN) visited FNAL & BNL for 1 week to coordinate work on s.c. database

HHH, CARE’07, CERN, October 29-31, 2007

planned amt workshop
planned AMT workshop
  • 19-20 November: CARE-HHH-AMT workshop onHeat Generation and Heat Transfer in Superconducting Magnets (THERMOMAG’07), Paris, 2 days
    • 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

→ CARE’07 HHH highlight

talk by D. Tommasini

http://care-hhh.web.cern.ch/CAREHHH/Workshops/ProgThermomag.htm

HHH, CARE’07, CERN, October 29-31, 2007

slide17

WP2:

Novel Methods for

Accelerator Beam Instrumentation

(ABI)

HHH, CARE’07, CERN, October 29-31, 2007

4 th abi workshop
4th ABI workshop
  • 27 participants: 6 CERN, 7 DESY, 5 GSI, 1 CEA, 2 RAL, 2 Globes Electronics, 3 Kyocera, 1 FNAL
  • topics: BPM sensors, BPM electronics, cold BPMs
  • proceedings ready and published as CARE-Conf-06-087-HHH

HHH, CARE’07, CERN, October 29-31, 2007

slide19

planned ABI workshop

  • Dec. 2007: HHH-ABI annual workshop on Tools for Diagnostic Systems at High-Intensity (Pre-) Accelerators; Emittance Preservation and Measurements in the Accelerator Chain, Chamonix, France

HHH, CARE’07, CERN, October 29-31, 2007

slide20

WP3:

Accelerator Physics

and synchrotron Design

(APD)

HHH, CARE’07, CERN, October 29-31, 2007

apd exchanges
APD exchanges
  • R. De Maria (CERN grad student) visited FNAL for 1 month in February-March to work on heat deposition in low-b region for NbTi “low-gradient” IR optics solutions
  • W. Scandale (CERN) visited FNAL for 1 week in February to participate in Tevatron crystal experiment
  • Two CERN graduate students (U. Dorda, G. Sterbini) participated in RHIC beam-beam compensation experiments for two weeks in June, in the frame of HHH/US-LARP collaboration
  • collaborations with N. Mokhov (US-LARP), on heat deposition in low-b region for NbTi “low-gradient” IR optics solutions
  • W. Scandale (CERN) visited LBNL and FNAL for 1 week in July to discuss CARE-HHH and US-LARP issues, and future SPS+FNAL crystal experiments
  • G. Franchetti (GSI) visited CERN for joint e-cloud studies in September / October 2007; M. Pivi (SLAC) will visit CERN in January 2008

HHH, CARE’07, CERN, October 29-31, 2007

slide22

2007 crystal experiments

  • Seven weeks of CERN SPS runs;
    • goals:
      • test multi-strip crystals,
      • check the effect on ions;
      • verify their fragmentation and e.-m. dissociation inside the crystal;
      • test the effectiveness of crystal collimation
  • Participating in the preparation of a crystal collimation experiment at FNAL
  • Support:

CARE-HHH , INTAS-CERN, INFN-NTA,

Russian Foundation for Basic Research, CERN AB

and AT Departments

HHH, CARE’07, CERN, October 29-31, 2007

cc 2007
CC-2007

CERN, 22-23 March 07

topics:

  • critical review of experimental results
  • crystal production technologies
  • application of bent crystals to LHC collimation system
  • assessment of new crystals through experiments at SPS and Tevatron
  • use of crystals for diffractive physics

co-sponsored by INTAS

45 participants: INFN Genova, U. Ferrara, INFN Legnaro, PNPI Gatchina, IHEP Protvino, FNAL, JINR Dubna, INFN Frascati, INFN Roma, U. Manchester, U. Texas,

HHH, CARE’07, CERN, October 29-31, 2007

prl article on 2006 sps crystal experiments including care acknowledgement
PRL article on 2006 SPS crystal experiments including CARE acknowledgement

SPS crystal

collimation test

HHH, CARE’07, CERN, October 29-31, 2007

slide26

intensity limits in LHC and LHC injectors

  • various limitations explored by summer student Ibon Santiago Gonzalez (Guernica), 26 June – 15 September
  • information gathered from experts(G. Arduini, C. Carli, M. Chanel, A. Hofmann, E. Metral, F. Pedersen, E. Shaposhnikova, B. Zotter, collimation team,…)
  • information collected from literature(papers by E. Metral, F.J. Sacherer, K.Y. Ng,…)
  • theory of longitudinal Landau damping further developed to include arbitrary bunch profile & 2nd harmonic rf; applications to PSB, PS, SPS, LHC
  • mega-tables with machine parameters; extended web pages
  • HHH note in preparation

HHH, CARE’07, CERN, October 29-31, 2007

slide27

2007 long-range beam-beam compensation experiments

RHIC, MD in June 2007

- two wires used to model LHC LR effect in RHIC rings

- strong effect of chromaticity on beam lifetime observed

SPS, MDs in July and August 2007

- single wire used to model LHC LR effect in SPS

- main observables: proton loss, beam lifetime

- three beam energies 26, 37, 55 GeV explored to check scaling laws and extrapolation to LHC

- lifetime vs wire current, beam-wire distance, chromaticity

HHH, CARE’07, CERN, October 29-31, 2007

ecl2 workshop
ECL2 workshop
  • 35 participants: 16 CERN (4 AB/ABP, 1 AB/OP, 7 AB/RF, 2 AT-VAC, 2 TS), 3 German enamel industry (Eisenwerke Dueker, Wendel Email), 4 US (BNL, Cornell, LBNL & SLAC), 1 KEK, others from European institutes (Astec, LNF, DESY, ANKA, U. Rostock, CELLS, U. Sannio, ESRF)
  • topics: CERN NEG coating facility, motivation, technological solutions, simulations, beam measurements, impedance, - for PS2, SPS upgrade, LHC upgrade, CLIC & ILC

HHH, CARE’07, CERN, October 29-31, 2007

slide29

ECL2: solutions against electron cloud

slotted vacuum chamber (W. Bruns)New!

enamel electrodes (F. Caspers) New!

electrete inserts (F. Caspers)New!

NEG coating (P. Chiggiato)

→ CARE’07 HHH highlight

talk by F. Zimmermann

slotted chamber

enamel-based electrode

HHH, CARE’07, CERN, October 29-31, 2007

slide30

LHC upgrade

scenarios

challenges

injector upgrade

large Piwinski angle (LPA)

early separation (ES)

Crossing with large Piwinski angle

aggressive triplet

compromises

between

# of pile up events

and

heat load

HHH, CARE’07, CERN, October 29-31, 2007

slide31

nominal

25 ns

new alternative!

ultimate

& 25-ns upgrade

25 ns

50-ns upgrade,

no collisions @S-LHCb!

new baseline!

50 ns

50-ns upgrade

with 25-ns

collisions

in LHCb

50 ns

25 ns

upgrade bunch structures

HHH, CARE’07, CERN, October 29-31, 2007

ir upgrade optics
IR upgrade optics

compatible

with

50-ns

upgrade

path

“compact low-gradient” NbTi, b*=25 cm

<75 T/m (Riccardo De Maria, Oliver Bruning)

“modular low gradient” NbTi, b*=25 cm

<90 T/m (Riccardo De Maria, Oliver Bruning)

“low bmax low-gradient” NbTi, b*=25 cm

<125 T/m (Riccardo De Maria, Oliver Bruning)

standard Nb3Sn upgrade, b*=25 cm

~200 T/m,2 versions with different magnet parameters

(Tanaji Sen et al, Emmanuel Laface, Walter Scandale)

+ crab-waist sextupole insertions? (LNF/FP7)

early separation with b*=8 cm, Nb3Sn

(Jean-Pierre Koutchouk et al)

HHH, CARE’07, CERN, October 29-31, 2007

slide33

average luminosity vs b*

including crossing angle + hourglass,

assuming optimum run time for 5 h turn-around

HHH, CARE’07, CERN, October 29-31, 2007

phased lhc upgrade
phased LHC upgrade
  • recent CERN management decision: early IR upgrade (“phase-1”): based on NbTi magnets, implemented ~2012
  • “low-gradient” large-aperture NbTi optics solutions developed by HHH are three good candidates
  • IR optics selection by Lyn Evans in 2007; input from HHH studies
  • more ambitious Nb3Sn upgrade and higher luminosity planned in a 2nd phase

HHH, CARE’07, CERN, October 29-31, 2007

planned apd workshops
planned APD workshops
  • 7-9 November: CARE-HHH-APD workshop onLHC IR Upgrade (LUMI'07), INFN Frascati, Italy
    • new low-beta quadrupoles,
    • detector-integrated dipoles and quadrupoles,
    • crab cavities,
    • wire compensation,
    • experience with new DAFNE IR (crab waist IR)

HHH, CARE’07, CERN, October 29-31, 2007

upgraded injector chain
Upgraded injector chain

Present accelerators

Future accelerators

Linac4

Linac2

50 MeV

  • (LP)SPL is the baseline injector for PS2
  • PS2 will use nc magnets
  • PS2 size is 15/77 of SPS

160 MeV

(LP)SPL

PSB

1.4 GeV

4 GeV

PS

26 GeV

PS2

50 GeV

Output energy

(LP)SPL: (Low Power)Superconducting Proton Linac (4-5 GeV)

PS2: High Energy PS

(~ 5 to 50 GeV – 0.3 Hz)

SPS+: Superconducting SPS

(50 to1000 GeV)

SLHC: “Superluminosity” LHC

(up to 1035 cm-2s-1)

DLHC: “Double energy” LHC

(1 to ~14 TeV)

SPS

SPS+

450 GeV

1 TeV

LHC /

SLHC

DLHC

7 TeV

~ 14 TeV

HHH, CARE’07, CERN, October 29-31, 2007

francesco ruggiero memorial symposium
Francesco Ruggiero Memorial Symposium

3 October 2007

during

HHH-APD

BEAM’07

speakers: S. Berg, C. Biscari, O. Bruning,

W. Chou, M. Furman, K. Hirata, A. Mostacci,

L. Palumbo, S. Petracca, Q Quin,

W. Scandale, F. Zimmermann .

HHH, CARE’07, CERN, October 29-31, 2007

slide38

Gantt chart until end of 2008

AMT and ABI

HHH, CARE’07, CERN, October 29-31, 2007

slide39

Gantt chart until end of 2008

APD

HHH, CARE’07, CERN, October 29-31, 2007

conclusions
Conclusions
  • numerous high-impact workshops
  • focused activities in many frontier areas

- crystal collimation, slim magnets, e-cloud suppression, low-angle 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

  • enhanced dissemination & training effort

- mutual visits between partner labs, publications, seminars, web pages, many summer students and graduate students

  • HHH is “high-return investment for Europe”

HHH, CARE’07, CERN, October 29-31, 2007