1 / 29

MAD-X for CLIC

MAD-X for CLIC. H. Braun, R. Corsini, T.d’Amico, A. Faus-Golfe, M. Korostelev, S. Redaelli, T. Risselada, D. Schulte, F. Tecker, and F. Zimmermann for the CLIC Team. applications of MAD8 to CLIC & CTF3 minimum requirements for MAD-X desirable extensions. CTF-3. 3 TeV CLIC.

bud
Download Presentation

MAD-X for CLIC

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. MAD-X for CLIC H. Braun, R. Corsini, T.d’Amico, A. Faus-Golfe, M. Korostelev, S. Redaelli, T. Risselada, D. Schulte, F. Tecker, and F. Zimmermann for the CLIC Team • applications of MAD8 to CLIC & CTF3 • minimum requirements for MAD-X • desirable extensions MAD-X Day, September 4, 2003

  2. CTF-3 MAD-X Day, September 4, 2003

  3. 3 TeV CLIC MAD-X Day, September 4, 2003

  4. Past and Present Applications of MAD8 to CLIC & CTF3 CTF-3 Linacs & Ring Combiner Rings -> Frascati Transfer Lines Beam Delivery (Final Focus & Collimation) Damping Rings Decelerator + Linacs MAD-X Day, September 4, 2003

  5. Top Ten MAD modules TWISS MATCHING SURVEY TRACK EMIT DYNAP IBS EFIELD EALIGN CORRECT MAD-X Day, September 4, 2003

  6. CTF-3 Prelim. Phase Linac (F. Tecker) CTF3 Preliminary Phase Linac. Latticewas optimized with MAD8. The acceleration is modelled by LCAVITY elements and extends from4 to 350 MeV. MAD-X Day, September 4, 2003

  7. Design of CTF-3 Combiner Rings see the Talk by C. Milardi MAD-X Day, September 4, 2003

  8. CLIC IP Beam (S. Redaelli) Tracking through CLIC Beam Delivery at 3 TeV. MAD8 simulations include finite energy spread & synchrotron radiation. MAD-X Day, September 4, 2003

  9. CERN-DESY-SLAC Code Comparison for the CLIC IP Beam (S. Redaelli) Without SR, MAD8 Y spot size is much larger than in MERLIN, PLACET and DIMAD. May PTC help!? MAD-X Day, September 4, 2003

  10. Design of Bunch Compressor Chicanes for the CLIC Main Beam (T. d’Amico) matching & survey tracking (with wake fields & CSR desirable) MAD-X Day, September 4, 2003

  11. Design of CLIC Drive-Beam Turn Around (T. d’Amico) optics matching & survey with MAD8 MAD-X Day, September 4, 2003

  12. CLIC Damping Ring (M. Korostelev) damping time & equil. emittance lattice MAD-X Day, September 4, 2003

  13. IBS & DA Calculations for CLIC DR (M. Korostelev) emittance time evolution lattice matching dynamic aperture MAD-X Day, September 4, 2003

  14. Damping Ring Design fully relies on MAD! Optics design Radiation damping Emittance evolution with IBS Tracking for Dynamic Aperture Resonance Compensation and Nonlinear Analysis for DA Optimization Error & Tolerance Analysis Closed-orbit corrections Optics corrections, emittance tuning, etc. (M. Korostelev) MAD-X Day, September 4, 2003

  15. CLIC Beam Delivery with Collimation & Raimondi-Seryi Final Focus(T. Risselada, F. Zimmermann) MAD-X Day, September 4, 2003

  16. CLIC Luminosity Performance (S. Redaelli, D. Schulte, F. Zimmermann) MAD-X Day, September 4, 2003

  17. CLIC Beam Delivery Footprints(F. Zimmermann) MAD-X Day, September 4, 2003

  18. Prototype Compact Final Focus for CTF-3 (F. Zimmermann) MAD-X Day, September 4, 2003

  19. Nonlinear Collimation System (A. Faus-Golfe, F. Z.) RMAT & GLOBAL (formula) for matching [also needed for nonlinear SPS optics (A. F.-G.)] MAD-X Day, September 4, 2003

  20. MAD is important for CLIC In the past, the design and on-line models of all components for CTF-3 and for the 3-TeV CLIC design have relied heavily on MAD8.We would like to have at least the MAD8 functionality maintained in MAD-X. This is not yet completely the case. Certain extensions would be welcome and are encouraged! MAD-X Day, September 4, 2003

  21. MADX’ Positive Features: • IBS is working fine • Closed orbit correction considerably improved • PTC will hopefully facilitate tracking and might aid in nonlinear optimization for DR and BDS MAD-X Day, September 4, 2003

  22. The Scope of PTC? Our wish is to • identify the main nonlinearities blowing up the IP spot size and facilitate their correction for the beam delivery system, • identify the main nonlinearities blowing up the transverse emittances in the damping rings, combiner rings & bunch compressors, and again provide methods to correct them MAD-X Day, September 4, 2003

  23. Some Urgent MAD-X Problems L-Cavity does not work with Twiss [needed for optics matching of all linacs including CTF-3 linac]; would like to re-establish late MAD8 functionality! Dipole end faces with Twiss cause discontinuity in beta function at dipole exit [for design of damping rings]; only a plotting problem? MAD-X Day, September 4, 2003

  24. Plot of Damping-Ring Cell Optics (M. Korostelev) spline option bizzar discontinuities MAD-X MAD8 without spline option MAD-X Day, September 4, 2003

  25. More Urgent MAD-X Problems RMAT & TMAT not working? [needed for any transfer line matching] re-establish late MAD8 functionality! GLOBAL not working. [needed for many matching applications] re-establish late MAD8 functionality! MAD-X Day, September 4, 2003

  26. CLIC Special Requirements Many problems require specific tracking features, e.g., coherent synchrotron radiation, collimator wake fields, linac wakes, gas scattering, or collimator scattering. Another important group of beam-dynamics studies need integrated simulations including various beam-line segments, e.g., simulations from the Damping Ring to the IP. Specialized codes exist, e.g., for the beam-beam collision (GUINEA-PIG) or for multi-bunch linac tracking (PLACET). MAD-X Day, September 4, 2003

  27. It is unrealistic to believe that MAD-X module keepers or the MAD-X custodian will cover every possibility. Neither do we want to write our own MAD program for each study. Suggested Extension Data-exchange interface to allow fast data piping to and from user programs. For example, enabling user-defined coordinate transformations by external program for selected element classes. MAD-X Day, September 4, 2003

  28. Conclusions MAD8 is a valuable tool for CLIC studies. We expect MAD-X to follow this tradition and not to lose the contact to the lepton machines. We hope that a few minor requirements (LCAV, dipole end faces, RMAT, GLOBAL) can be resolved quickly. A communication interface for tracking will greatly enhance the reach of MAD-X simulations for CLIC. Popular user-written programs could later become integrated into the MAD-X core. LHC will profit from such a feature as well! MAD-X Day, September 4, 2003

  29. Thanks to all members of the CLIC team! H. Braun, T. d’Amico, R. Corsini, A. Faus-Golfe, M. Korostelev, S. Redaelli, D. Schulte, and F. Tecker helped preparing this presentation. MAD-X Day, September 4, 2003

More Related