Presentation is loading. Please wait.

Presentation is loading. Please wait.

Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004 Ion Programme of LHC Hans-H.

Published byLouisa Parker Modified over 8 years ago

Similar presentations

Presentation on theme: "Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004 Ion Programme of LHC Hans-H."— Presentation transcript:

1 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004 Ion Programme of LHC Hans-H. Braun  I-LHC layout and planning  Limitations on LHC ion beams  Other projects for e - -ion collider

2 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004 LHC: Layout Beam dumps Acceleration system Beam cleaning Proton or Ions injection Pb-Pb p-p (Pb-Pb) p-p (Pb-Pb?) Beam cleaning

3 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004 The LHC Injector Chain - Overview LEIR 72 MeV/n Pb 6 GeV/n Pb 177 GeV/n Pb 2.76 TeV/n Pb-Pb LEIR 72 MeV/n

4 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004

5 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004

6 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004 I-LHC (Ions for LHC) vs. ALICE Planning ALICE (CMS, + ATLAS?) Planning  Running-in detector in 2007 with p-p, followed by p-p physics run  Year 1 : Pb-Pb pilot run “at the end of first p-p run”, normally in April 2008, ~1 week, L a few 10 25 cm -2 s -1 (corresponds to “Early Scheme”)  Years 2 (2009?) and 4: Pb-Pb @ L ~ 10 27 cm -2 s -1 (Nominal Pb beam) for rare observables  Year 3: p-Pb @ L ~ 10 29 cm -2 s -1 for nuclear modifications of structure functions  Year 5 (2012?): Ar-Ar @ L ~ 10 27 - 10 29 cm -2 s -1 for energy density dependence I-LHC Planning  Deal exclusively with Pb ions  “Early Pb Scheme” – much easier to achieve – for 2008 (and 2009?)  Nominal Pb Scheme by 2009 (2010?)  Other ion-ion collisions (typically In, Kr, Ar, O) by ~2012  improvement programme albeit without major hardware changes

7 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004 Some remarks about ion beams in LHC I-LHC beam emittances are chosen to give for the same magnetic field strength of the ring magnets the same beam sizes as for protons beams The beam energy per nucleon for ions are lower by a factor Z/A compared with protons. The separated RF systems for the two rings allow to have different ions species in the two rings (problems with instabilities due to parasitic crossings as observed in RHIC need further studies). Presently the injector machines foresee only the acceleration of 208 Pb ions. Other ions are certainly possible with moderate upgrades of injector. But very little studies have been done so far. Presently other ion species are not part of the LHC baseline program.

8 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004 Intensity limitations for Ion beams in LHC Single bunch intensity Intra Beam Scattering  Growth ~ Z 2 /A 3 ~ N B /A balanced by Synchrotron radiation  Damping ~ A 4 /Z 5 ~ 1/Z Space charge limit in injector chain  Q SC ~ N B Z 2 /A Intra Beam Scattering limits in injector chain Total beam current Residual gas scattering  ~A 2/3 Particle loss induced gas desorption from vacuum chamber walls can lead to vacuum run-away Particle losses in IP’s proportional to Luminosity Total beam intensity is limited by permissible loss rate given by T·N B ·n /  This loss rate is given by the power the collimation system can handle and the collimation efficiency, i.e. the fraction of particles lost on the S.C.-magnets relative to the losses on the collimators. Collimation efficiency for ions is considerably worse than for protons, because of the different interaction mechanism of the ions in the collimators.

9 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004 SPS Bunchlets – Yes or No?  Injection plateau lasting 43.2 s at 57.1 Tm, accumulating up to 13 PS batches à 4 bunches (4 pairs of bunchlets) each. Very little transverse blow-up/losses allowed  Pb ions suffer from incoherent space charge detuning and Intra-Beam Scattering (IBS) Halving the number of ions/bunch (= making bunchlet pairs) halves these effects as well.  Bunchlet pairs can be recombined by a 100 RF system before extraction to the LHC  Space charge detuning  Q (about the same in either plane) for nominal Pb ion bunches: - 0.082 calculated - P-Pbar experience: SPS can stand not more than  Q = 0.07. - Recent measurements (with p):  Q up to 0.18 acceptable on the injection plateau  IBS growth times (nominal bunches): ~300 s (to be confirmed) which is acceptable   Q and IBS the same for Nominal and Early schemes (bunch properties identical)  No bunchlets in the early scheme (“calculated risk”)  No installation of 100 MHz RF systems now (intended to check their impact on p beams)

10 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004

11 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004

12 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004

13 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004

14 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004 Preliminary study for other ions than 208 Pb has been done in LHC project report 450, “Review of the LHC ion program,” Daniel Brandt, 2000

15 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004

16 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004

17 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004

18 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004

19 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004

20 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004

21 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004

22 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004 GSI / FAIR project

23 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004

24 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004 Informations on LHC ion program http://ab-div.web.cern.ch/ab-div/Conferences/Chamonix/2004/default.html http://ab-div.web.cern.ch/ab-div/Publications/LHC-DesignReport.html Slides and references for FAIR, eRHIC and e-LIC http://nsac2004.bnl.gov/ Overview-Electron Ion CollisionsOverview-Electron Ion Collisions Raju Venugopalan Realization at e-RHICRealization at e-RHICRichard Milner Realization at e-LICRealization at e-LICRolf Ent HI Physics Opportunity at GSIHI Physics Opportunity at GSIBengt Friman HI Physics and Experiments HI Physics and Experiments Peter Braun-Munzinger http://www-new.gsi.de/GSI-Future/cdr/PDF/S3.pdf A. Koop et. al., Conceptual Design of an Electron-Nucleus Scattering Facility at GSI, Final Report, BINP 2001. http://www.agsrhichome.bnl.gov/eRHIC/

25 Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004 Thanks to John Jowett and Karlheinz Schindl for providing slides, information and helpful discussions for this presentation

Download ppt "Ion Programme of LHC Hans-H. Braun Miniworkshop on Machine and Physics Aspects of CLIC based future Collider Option, 30.8.2004 Ion Programme of LHC Hans-H."

Similar presentations

RAL 27 April 2006The beta-beam task, EURISOL1 Status of the beta-beam study Mats Lindroos on behalf of the EURISOL beta-beam task.

RAL 27 April 2006The beta-beam task, EURISOL1 Status of the beta-beam study Mats Lindroos on behalf of the EURISOL beta-beam task.
1 Accelerator Physics Aspects LHCb Accelerator Physics Aspects LHCb CERN SL/AP n Layout n Crossing Scheme n Luminosity n Collision.

1 Accelerator Physics Aspects LHCb Accelerator Physics Aspects LHCb CERN SL/AP n Layout n Crossing Scheme n Luminosity n Collision.
Study of the Luminosity of LHeC, a Lepton Proton Collider in the LHC Tunnel CERN June 14 2006 F. Willeke, DESY.

Study of the Luminosity of LHeC, a Lepton Proton Collider in the LHC Tunnel CERN June F. Willeke, DESY.
A. Bay Beijing October 20051 Accelerators We want to study submicroscopic structure of particles. Spatial resolution of a probe ~de Broglie wavelength.

A. Bay Beijing October Accelerators We want to study submicroscopic structure of particles. Spatial resolution of a probe ~de Broglie wavelength.
Internal target option for RHIC Drell-Yan experiment Wolfram Fischer and Dejan Trbojevic 31 October 2010 Santa Fe Polarized Drell-Yan Physics Workshop.

Internal target option for RHIC Drell-Yan experiment Wolfram Fischer and Dejan Trbojevic 31 October 2010 Santa Fe Polarized Drell-Yan Physics Workshop.
The LHC: an Accelerated Overview Jonathan Walsh May 2, 2006.

The LHC: an Accelerated Overview Jonathan Walsh May 2, 2006.
1 QM2006 D.I.Lowenstein RHIC : The Path Forward Presented to Quark Matter 2006 Shanghai, PRC Derek I. Lowenstein Brookhaven National Laboratory November.

1 QM2006 D.I.Lowenstein RHIC : The Path Forward Presented to Quark Matter 2006 Shanghai, PRC Derek I. Lowenstein Brookhaven National Laboratory November.
P. Spiller, SIS18upgrade, 1.12.05 Peter Spiller GSI, Darmstadt Kick off Meeting - EU Construction DIRAC Phase 1 1.12.2005 SIS18 upgrade.

P. Spiller, SIS18upgrade, Peter Spiller GSI, Darmstadt Kick off Meeting - EU Construction DIRAC Phase SIS18 upgrade.
07-JUL-2003LEADE / JW1 Satellite bunches in the LHC Satellite “definition” Satellite luminosity Satellite detection & tolerances J. Wenninger AB/OP.

07-JUL-2003LEADE / JW1 Satellite bunches in the LHC Satellite “definition” Satellite luminosity Satellite detection & tolerances J. Wenninger AB/OP.
CONTENT: Beam characteristics and parameters Filling schemes Operational settings OP procedure and COLL setting Planning Shift breakdown To define the.

CONTENT: Beam characteristics and parameters Filling schemes Operational settings OP procedure and COLL setting Planning Shift breakdown To define the.
October 4-5, 2010 1 Electron Lens Beam Physics Overview Yun Luo for RHIC e-lens team October 4-5, 2010 Electron Lens.

October 4-5, Electron Lens Beam Physics Overview Yun Luo for RHIC e-lens team October 4-5, 2010 Electron Lens.
CASA Collider Design Review Retreat HERA The Only Lepton-Hadron Collider Ever Been Built Worldwide Yuhong Zhang February 24, 2010.

CASA Collider Design Review Retreat HERA The Only Lepton-Hadron Collider Ever Been Built Worldwide Yuhong Zhang February 24, 2010.
Partikeldagarna, Göteborg 21 September 2007 LHC: Status and Plans Lyn Evans.

Partikeldagarna, Göteborg 21 September 2007 LHC: Status and Plans Lyn Evans.
IEFC WS 21-24 March 2011 Middle-Long Term Needs for Ion Beams S. Maury 111 Middle-Long Term Needs for Ion Beams S.Maury Thanks to T. Bohl, C. Carli, D.

IEFC WS March 2011 Middle-Long Term Needs for Ion Beams S. Maury 111 Middle-Long Term Needs for Ion Beams S.Maury Thanks to T. Bohl, C. Carli, D.
RADWG-RADMONLHC Beam Loss Rates1 Beam Loss mechanisms Where? Beam loss in cycle – when? Totals per fill: before and during physics Totals per annum Comparison.

RADWG-RADMONLHC Beam Loss Rates1 Beam Loss mechanisms Where? Beam loss in cycle – when? Totals per fill: before and during physics Totals per annum Comparison.
0 1 Alternative Options in the Injectors – Preliminary Summary H. Damerau LIU-TM#8 18 October 2013 Many thanks for discussions and input to T. Argyropoulos,

0 1 Alternative Options in the Injectors – Preliminary Summary H. Damerau LIU-TM#8 18 October 2013 Many thanks for discussions and input to T. Argyropoulos,
ILC MDI workshop January 6-8, 2004 PEP-II IR M. Sullivan 1 Interaction Region of PEP-II M. Sullivan for the ILC MDI workshop January 6-8, 2005.

ILC MDI workshop January 6-8, 2004 PEP-II IR M. Sullivan 1 Interaction Region of PEP-II M. Sullivan for the ILC MDI workshop January 6-8, 2005.
NuFact'06 WG3, Aug. 2006A. Fabich, CERNBeta-beam Ion Losses, 1 The EURISOL Beta-beam Acceleration Scenario: Ion Losses A. Fabich, CERN NuFact’06, UCIrvine.

NuFact'06 WG3, Aug. 2006A. Fabich, CERNBeta-beam Ion Losses, 1 The EURISOL Beta-beam Acceleration Scenario: Ion Losses A. Fabich, CERN NuFact’06, UCIrvine.
Session 7: I-LHC Organization: Chamonix Summary Session7; 10.2.2006Oliver Brüning 1 -session organized in collaboration with D. Manglunki and all speakers.

Session 7: I-LHC Organization: Chamonix Summary Session7; Oliver Brüning 1 -session organized in collaboration with D. Manglunki and all speakers.
The SPS as a Damping Ring Test Facility for CLIC March 6 th, 2013 Yannis PAPAPHILIPPOU CERN CLIC Collaboration Working meeting.

The SPS as a Damping Ring Test Facility for CLIC March 6 th, 2013 Yannis PAPAPHILIPPOU CERN CLIC Collaboration Working meeting.

Similar presentations

Ads by Google