Past SL-AP Seminars

LHC Forums in 1997, LHC Forums in 1998, LHC Forums in 1999, SL-AP Seminar Calendar

List of Beam Physics Discussions.

DATE AGENDA SPEAKER 31 Jul 97 Beam-Beam Interaction with Crossing Angle K. Hirata 9 Sep 97 Physics of the Fast Ion Instability G. Stupakov 16 Sep 97 Accelerator activities at C.A.T. G.K. Sahoo 23 Sep 97 Chromaticity sharing in the head-tail effect R. Talman 28 Oct 97 Computation of Beam Transfer Functions, Stability Diagrams, and Schottky Spectra J.S. Berg 11 Nov 97 Highlights from the Frascati ICFA workshop E. Keil, J. Jowett, F. Ruggiero,   and Fermilab Symposium H. Burkhardt, B. Jeanneret 2 Dec 97 Semi-analytical tools to study dynamical systems I. Papaphilippou 9 Dec 97 Crystalline Beams J. Wei 13 Jan 98 Using the DOOM Database H. Grote, E. Keil 3 Feb 98 Generic insertions made of two symmetric triplets G. Guignard 17 Feb 98 Radiation Reaction and Possibilities for Low Emittance R. Ruth 24 Feb 98 Normal Forms from tracking or experimental data R. Bartolini 25 Feb 98 Non-linear transverse dynamics at COSY P. Leunissen 24 Mar 98 Coupling impedance of many holes in a coaxial beam pipe: interference effects A. Mostacci 28 Apr 98 Beam transverse dynamics and BNS damping in Linacs G. Guignard, J. Hagel 19 May 98 Review of methods to study nonlinear dynamics I. Papaphilippou 2 Jun 98 The Beam-Beam Interaction (for non specialists) J. Gareyte 16 Jun 98 Experimental study of the Fast Beam-Ion Instability at AR in KEK X. Zhang 14 Jul 98 Betatron Resonances with Space Charge M. D'Yachkov 8 Sep 98 Various Issues Related to IP Design in Very High Energy Linear Colliders K.A. Thompson 15 Sep 98 The Square Well Model of Transverse Bunched Beam Stability M. Blaskiewicz 29 Sep 98 Highlights from HEACC'98, LINAC'98, ICAP'98 and Arcidosso'98 F. Schmidt, L. Vos, G. Guignard, E. Keil, F. Ruggiero, and Y. Papaphilippou 19 Oct 98 Energy Loss and Momentum Acceptance H. Burkhardt 30 Oct 98 Mini-workshop on RF IMPEDANCE OF THIN METAL FILMS F. Ruggiero, M. Dyachkov, E. Jensen, G. Dome, E. Karantzoulis, L. Vos, E. Keil 6 Nov 98 Nonlinear diagnostics with AC dipoles S. Peggs 24 Nov 98 New Theory of Bunch Dynamics in a Linac with Quadrupole Displacements J. Hagel and G. Guignard 30 Nov 98 A demonstration of MAD version-9 C. Iselin 15 Dec 98 Fokker-Planck description of stochastic beam dynamics M.P. Zorzano 2 Feb 99 Final Focus and Collimation for Multi-TeV Linear Colliders F. Zimmermann 23 Feb 99 Contribution of the AP group to the SPS MD programme for 1999 Several speakers 2 Mar 99 Slow waves for corrugated and slotted beam pipes A. Mostacci 30 Mar 99 Direct space charge effects in the LHC - Consequences for dynamic aperture and tail formation F. Zimmermann 10 May 99 Helical Siberian snakes and spin rotators for RHIC and HERA Y. Shatunov 11 May 99 Pertubation Theory (I) E. Forest   Concepts of String Theory U. Feichtinger 18 May 99 Pertubation Theory (II) E. Forest 25 May 99 Measurement and interpretation of longitudinal instabilities in the ESR G. Rumolo 26 May 99 WinAGILE (Windows Alternating Gradient Interactive Lattice dEsign): A technical description and demonstration P. Bryant

List of LHC Forums in 1997.

DATE AGENDA SPEAKER 20 Jan 97 Status report on MAD 9 C. Iselin 27 Jan 97 IP2-IP8 S. Weisz   Cleaning insertion optics T. Risselada 3 Feb 97 Revisiting the superposition law and the tune split dependence for the dynamical aperture G. Guignard 11 Feb 97 Possible Multipactoring in the LHC O. Gröbner 3 Mar 97 Transfer lines from SPS to LHC A. Hilaire 6 Mar 97 Future LHC Beam-Beam Studies W. Herr, J. Jowett, E. Keil, M. Meddahi, J. Miles, F. Ruggiero, R. Schmidt 10 Mar 97 SPS impedance measurements from the spectrum of unstable bunches E. Shaposhnikova 17 Mar 97 Inverse logarithmic law for Dynamic Aperture? W. Scandale 7 Apr 97 Dynamic Aperture for LHC Version 4 in case of partial failure of the correction system G. Xu 14 Apr 97 B++ J. Niederer 21 Apr 97 US-CERN collaboration on LHC J.-P. Koutchouk, F. Ruggiero, et al. 28 Apr 97 Serch for best optics for betatronic collimation D. Kaltchev   Parameter Searches for Circular Colliders with Mathematica 3.0 E. Keil 2 Jun 97 Octupoles in SPS and LHC L. Vos 9 Jun 97 Highlights from PAC'97 D. Brandt, J.-P. Koutchouk, F. Ruggiero, W. Herr 16 Jun 97 More Highlights from PAC'97 J.-P. Koutchouk   Ground Motion L. Vos 30 Jun 97 Analytical and Numerical Calculation of Electromagnetic Fields Inside Beampipe Walls C. Hackl 22 Jul 97 LHC geometric aperture and beam separation B. Jeanneret 28 Jul 97 Persistent currents and zero crossing for LHC corrector magnets A. Ijspeert, R. Wolf 4 Aug 97 Tools for nonlinear dynamics F. Schmidt 1 Sep 97 DOOM Status H. Grote 8 Sep 97 Ongoing studies on chromatic detuning J.-P. Koutchouk   Ongoing studies on nonlinear dynamics F. Schmidt 22 Sep 97 A new method for low-frequency resistance measurements of the LHC beam screen M. Morvillo   Analytic estimates of the electron cloud build-up G. Stupakov 6 Oct 97 Response of various machines (including LHC) to plane ground waves E. Keil 20 Oct 97 Multipole feed-down due to dipole misalignment W. Scandale   Comments on dipole misalignment J.-P. Quesnel 27 Oct 97 Which Physics in MAD9? H. Grote, C. Iselin 24 Nov 97 Update on ground motion effects E. Keil 1 Dec 97 Update on Dynamic Aperture M. Böge 8 Dec 97 MD on Collimation N. Catalan   Update on Electron Cloud O. Brüning, M. Morvillo 16 Dec 97 Update on Momentum Collimation B. Jeanneret, D. Kaltchev, T. Risselada

List of LHC Forums in 1998.

DATE AGENDA SPEAKER 12 Jan 98 Update on Linear Lattice O. Brüning, J.-P. Koutchouk, A. Verdier 19 Jan 98 Beam related subjects with the Alice detector A. Morsch and O. Brüning 26 Jan 98 Update on Impedance and Instabilities O. Meincke, L. Vos 2 Feb 98 Update on Beam-Beam J. Miles   MD planning for 1998   9 Feb 98 Beam Instrumentation for the LHC H. Schmickler 16 Feb 98 Highlights from the Brookhaven workshop and LHC software H. Grote, R. Talman 2 Mar 98 Dependence of LHC dynamic aperture on integer tune separation R. Talman 9 Mar 98 Progress report on collimation B. Jeanneret   Highlights from the Fermilab workshop J. Jowett 10 Mar 98 Results of BNL LHC studies F. Pilat   Baseline separation scheme J. Miles 16 Mar 98 Sensitivity of the dynamic aperture to small lattice changes I. Papaphilippou 6 Apr 98 Update on Electron Cloud L. Vos, F. Ruggiero 20 Apr 98 Why and when should I switch over to using MAD-9? C. Iselin 29 Apr 98 Protection of the LHC in case of mis-injection O. Brüning 5 May 98 Highlights from the Delft CPO5 A. Verdier   Tune optimisation for maximum dynamic aperture R. Talman 11 May 98 Quality control limits during dipole production J. Miles   Spectral analysis of tracking data J. Jowett, F. Schmidt 8 Jun 98 Off-bucket proton losses during ramping N. Catalan 15 Jun 98 Beam-beam tune shifts in the LHC H. Grote and O. Meincke 30 Jun 98 Results obtained by our US colleagues J. Holt and J. Wei 6 Jul 98 Highlights from EPAC'98 O. Brüning, H. Grote, B. Jeanneret and F. Ruggiero 20 Jul 98 Impedance measurements of LHC BPM connections C. Gonzalez   LHC kicker impedance measurements and the "Piwinski mystery" M. D'Yachkov 27 Jul 98 Collision schedules for arbitrary bunch trains in a two-ring collider with unequal arc-lengths: general solution and application to LHC J. Jowett 4 Aug 98 Optics effects of splitting dipole magnets into several thin lenses P. Leunissen 11 Aug 98 Optimal integer tunes for the LHC R. Talman 19 Aug 98 Latest results from BNL/LHC S. Tepikian 28 Aug 98 Proposal for IR5 and IR1 insertions S. Tepikian 21 Sep 98 Arc cells to minimize the effect of systematic multipoles in LHC A. Verdier 22 Sep 98 Progress report on the LHC tune scan L. Jin   Update on tools for resonance evaluation Y. Papaphilippou and F. Schmidt 23 Sep 98 LHC studies at Fermilab: Study of collision lattice using normal forms W. Wan 28 Sep 98 Influence of vertical dispersion and crossing angle on the performance of the LHC P. Leunissen 5 Oct 98 Self Compensation of Random Field Errors in Low-Beta Insertion Triplets of LHC S. Ohnuma   Compensation of Magnetic Field Errors with Minimization of Nonlinearity in One-Turn Map S. Ohnuma 13 Oct 98 Beam-Beam in the LHC: what we know, where to go J. Gareyte 10 Nov 98 The Question of b4/a4 in the LHC Dipoles - A Critical View of an Outsider - S. Ohnuma 16 Nov 98 Instrumentation Concepts for the Absorbers in the High Luminosity Insertions of LHC W. Turner 19 Nov 98 Preliminary results about the electron-cloud effect at PEP-II M. Furman   Results of the collimation experiment at 120 GeV N. Catalan 8 Dec 98 Bunch destinies for different injection failure modes O. Brüning   Optimization of the dipole non-linear correction scheme J.-P. Koutchouk 14 Dec 98 Sorting the dipoles for minimum excitation of 3rd-order resonances at collision energy S. Onuma

List of LHC Forums in 1999.

DATE AGENDA SPEAKER 19 Jan 99 Frequency Map for the LHC Y. Papaphilippou 9 Feb 99 Momentum collimation and IR3 optics version 6 D. Kaltchev   Update on Collision Schedule J. Jowett 16 Feb 99 SODD: A program to determine detuning and driving terms in first and second order F. Schmidt 9 Mar 99 Resonances Induced by Vertical Dispersion and Crossing Angle P. Leunissen 23 Mar 99 Study and correction of chromatic coupling due to skew sextupolar field errors in the LHC dipoles S. Fartoukh 27 Apr 99 Highlights from PAC'99 J. Jowett, J.-P. Koutchouck, Y. Papaphilippou, A. Verdier