Multiparticle Beam Dynamics

Title	Page
Methods of Impedance Calculation	3219
R.L. Gluckstern (University of Maryland)
Space-Charge Calculations in Synchrotrons	3224
S. Machida (SSCL)
Advanced Computers and Simulation	3229
R.D. Ryne (LANL)
Measured Optimum BNS Damping Configuration of the SLAC Linac	3234
J.T. Seeman, F.-J. Decker, R.L. Holtzapple, W.L. Spence (SLAC)
Single Beam Phenomena in BEPC	3237
Z.Y. Guo, X. Bai, G.X. Li, J. Qin, Q. Qin, G. Xu, C. Zhang, X.L. Zhang, Z.T. Zhao (IHEP Beijing)
High Intensity Bunch Length Instabilities in the SLC Damping Rings	3240
P. Krejcik, K. Bane, P. Corredoura, F.-J. Decker, J. Judkins, T. Limberg, M. Minty, R.H. Siemann (SLAC), F. Pedersen (CERN)
Investigation on Relaxations in Electron Beams	3243
A. Aleksandrov, N. Dikansky, N.Ch. Kot, V. Kudelainen, V.A. Lebedev, P.V. Logachov (BINP), R. Calabrese, G. Ciullo, V. Guidi, G. Lamanna, P. Lenisa, B. Maciga, L. Tecchio, B. Yang (INFN)
Studies of Multipass Beam Breakup and Energy Recovery Using the CEBAF Injector Linac	3246
N.S. Sereno, L.S. Cardman (University of Illinois), J. J. Bisognano, G. A. Krafft, C.K. Sinclair (CEBAF)
The Longitudinal and Transverse Beam Dynamics Simulation in the MMF Storage Ring	3249
V.A. Moiseev (INR Moscow)
Control of Longitudinal Instabilities in the LEB	3252
P.D. Coleman, T.L. Grimm (SSCL)
Simulation of the Transverse Dipole Mode Multibunch Instability for the SSC Collider	3255
S. Chen, G. López (SSCL)
HOM RF Cavity Dampers for Suppressing Coupled Bunch Instabilities in the Fermilab Booster	3258
D. Wildman (FNAL), K. Harkay (Purdue U.)
Longitudinal Instabilities in the MEB	3261
J.A. Palkovic (SSCL)
A New Formulation of Longitudinal Coherent Instabilities	3264
S.Y. Zhang, W.T. Weng (BNL)
Three-Dimensional Simulations for Accelerator Physics Using ARGUS	3267
A. Mondelli, A. Drobot, C. Kostas, W. Krueger, A. Mankofsky, J. Petillo (Science Applications International Corporation), M.J. Browman, R.K. Cooper, G. Rodenz, R. Ryne (LANL)
A High-Order Moment Simulation Model	3270
K.T. Tsang, C. Kostas, A. Mondelli (Science Applications International Corporation)
Collective Effects of the PLS 2 GeV Storage Ring	3273
M. Yoon, J. Choi, T. Lee (Pohang Accelerator Laboratory)
Nonlinear Evolution of Longitudinal Bunched-Beam Instabilities	3276
A. Gerasimov (FNAL)
Multi-Bunch Dynamics in Accelerating Structures Including Interaction with Higher Order Modes	3279
M. Ferrario, F. Tazzioli (INFN-LNF), L. Serafini (INFN)
Generation of Space-Charge Waves due to Localized Perturbations	3282
J.G. Wang, D. Kehne, M. Reiser, D.X. Wang (University of Maryland)
Three Dimensional Multipole Decomposition of Fields	3285
K. Hahn (LBNL)
Multi-Bunch Beam-Break-Up Studies for a SWFEL/TBA	3288
J.S. Kim, A.M. Sessler (LBNL), D.H. Whittum (KEK), H. Henke (TU Berlin)
RF Noise Revisited: The Effect of Coherence	3291
A. Gerasimov (FNAL), S.Y. Lee (Indiana University)
TSD versus TRL Calibration and Applications to Beam Impedance Measurements	3294
M. Foley, E. Barsotti Jr., P. Colestock (FNAL)
Recent Study of Beam Stability in the PSR	3297
T. Wang, R. Cooper, D. Fitzgerald, S. Frankle, T. Hardek, R. Hutson, R. Macek, C. Ohmori, M. Plum, H. Thiessen, C. Wilkinson (LANL), D. Neuffer (CEBAF), E. Colton (Department of Energy), G. Rees (Rutherford Appleton Laboratory)
Impedance Budget and Beam Stability Analysis of the Fermilab Main Injector	3300
M.A. Martens, K.Y. Ng (FNAL)
Trapped Ions and Beam Coherent Instability	3303
P. Zhou, P.L. Colestock, S.J. Werkema (FNAL)
Comparison of the Coupled-Bunch Mode Theory to Experimental Observations in the Fermilab Booster	3306
K.C. Harkay (Purdue U.), P.L. Colestock (FNAL)
Measurement of Trapped Ion Pockets and Control of Ion Instabilities in the Fermilab Antiproton Accumulator	3309
S.J. Werkema, K.D. Fullett, P. Zhou (FNAL)
Study of Possible Energy Upgrade for the ALS and Modeling of the "Real Lattice" for the Diagnosis of Lattice Problems	3312
M. Meddahi, J. Bengtsson (LBNL)
Study of Coupled-Bunch Collective Effects in the PEP-II B-Factory	3315
J. Byrd (LBNL)
Study of Coupled-Bunch Collective Effects in the ALS	3318
J.M. Byrd, J.N. Corlett (LBNL)
Time Domain Solutions for a Coasting Beam with Impedance Feedback	3321
M. Blaskiewicz (BNL)
Longitudinal Impedance and Stability Thresholds of the AGS Booster	3324
M. Blaskiewicz (BNL)
Calculation of the Bunch Lengthening Threshold	3327
X.T. Yu, J.S. Wurtele (MIT)
Computation of Longitudinal Bunched Beam Instability Thresholds	3330
R. Baartman (TRIUMF), M. D'yachkov (University of British Colombia)
Bunch Lengthening Observed Using Real-Time Bunch-Length Monitor in the TRISTAN AR	3333
T. Ieiri (KEK)
Transverse Stability in Multibunch Mode for CLIC	3336
G. Guignard (CERN)
Simulations of the Longitudinal Instability in the SLC Damping Rings	3339
K.L.F. Bane (SLAC), K. Oide (KEK)
Multibunch Beam Break-Up in Detuned Structures	3342
K.A. Thompson, C. Adolphsen, K.L.F. Bane (SLAC)
Longitudinal Head-Tail Instability in a Non-Harmonic Potential Well	3345
B. Chen, A. W. Chao (SSCL)
Bunch Lengthening Effect and Localized Impedance	3348
B. Chen, A. W. Chao (SSCL)
Experimental Reduction of Electron Beam Breakup Instability Using External Coupled Cavities	3351
P.R. Menge, C.H. Ching, R.M. Gilgenbach, Y.Y. Lau, M. Walter (University of Michigan)
Beam Breakup in an Annular Beam	3354
Y.Y. Lau, R.M. Gilgenbach, J.W. Luginsland (University of Michigan)
RF Focusing Effects and Multi-Bunch Beam Breakup in Superconducting Linear Colliders	3357
J. Rosenzweig, S. Hartman, J. Stevens (University of California, Los Angeles)
Required Cavity HOM deQing Calculated from Probability Estimates of Coupled Bunch Instabilities in the APS Ring	3360
L. Emery (ANL)
Measurement and Analysis of Transverse Beam Transfer Functions in the Fermilab Main Ring	3363
P.J. Chou, G. Jackson (FNAL)
Observation of a Short Bunch Train Longitudinal Instability in the Fermilab Main Ring	3366
X. Lu, G. Jackson (FNAL)
Suppression of Longitudinal Coupled-Bunch Instabilities by a Passive Higher Harmonic Cavity	3369
R.A. Bosch, C.S. Hsue (SRRC Taiwan)
The Longitudinal Coupling Impedance of a Slot on the SSC Collider Liner	3372
V. Thiagarajan (SSCL)
Impedance of a Small-Gap Undulator Vacuum Chamber	3375
K. Bane (SLAC), S. Krinsky (NSLS-BNL)
A Formula for the High Frequency Longitudinal Impedance of a Tube With Smoothly Varying Radius	3378
R. L. Warnock (SLAC)
A Bench Set-up for Low-Beta Beam-Current Test Measurements with COSY	3381
Ch. Günther, H. Meuth, A. Schnase (IKP Jülich), F. Caspers (CERN)
A Generalized Model for Parametric Coupling of Longitudinal Modes in Synchrotrons	3384
P.L. Colestock, L. Klamp (FNAL)
Longitudinal Coupling Impedance of a Cavity	3387
I. Gjaja, R.L. Gluckstern (University of Maryland)
Transverse Impedance of an Iris in a Beam Pipe	3390
S. Jiang, R.L. Gluckstern (University of Maryland), H. Okamoto (Kyoto U.)
RF Characteristics of the APS Storage Ring Isolation Valve	3393
J.J. Song, R.L. Kustom (ANL)
Coupling Impedance of Vacuum Pumping Holes for the APS Storage Ring	3396
R.L. Kustom, J.J. Song (ANL), J. Zhou (IIT)
Impedance Formalism for an Arbitrary Cumulative Instability	3399
X.T. Yu, J.S. Wurtele (MIT), D.H. Whittum (KEK)
Longitudinal Impedance of a Prototype Kicker Magnet System	3402
H.J. Tran, M.J. Barnes, G.D. Wait, Y. Yan (TRIUMF)
Beam Coupling Impedance Measurements and Simulations of a Beam Pipe Liner with Pumping Holes or Slots	3405
E. Ruiz, Y. Goren, N. Spayd, L. Walling (SSCL)
Measurement and Computation of the Higher Order Modes of the ALS 500 MHz Accelerating Cavities	3408
J.N. Corlett, J.M. Byrd (LBNL)
Impedance Measurements of Components for the ALS	3411
J.N. Corlett, R.A. Rimmer (LBNL)
Advances and Applications of ABCI	3414
Y.H. Chin (LBNL)
On Coupling Impedances of Pumping Holes	3417
S.S. Kurennoy (SSCL)
Using a Ceramic Chamber in Kicker Magnets	3420
S.S. Kurennoy (SSCL)
An Analytical Treatment of Self Fields in a Relativistic Bunch of Charged Articles in a Circular Orbit	3423
J.L. Delhez, J.I.M. Botman, H.L. Hagedoorn, J.M.A. Hofman, W.J.G.M. Kleeven, G.A. Webers (Eindhoven U. of Tech.)
Transverse Wake Fields in the CLIC Transfer Structure	3426
G. Guignard, G. Carron, A. Millich, L. Thorndahl (CERN)
The LEP Impedance Model	3429
D. Brandt, K. Cornelis, A. Hofmann, C. Juillard, E. Peschardt, E. Rossa, F. Tecker, D. Wang, B. Zotter (CERN), V. Danilov, E. Perevedentsev (BINP), L. Rivkin (Paul Scherrer Institut)
Impedance Calculations for the Improved SLC Damping Rings	3432
K.L.F. Bane, C.-K. Ng (SLAC)
Broadband Impedance of Azimuthally Symmetric Devices in RHIC	3435
V. Mane (BNL)
Software Development with Two Port Calibration Techniques for RHIC Impedance Measurements	3438
V. Mane, T. Shea (BNL)
Resistive Wall Wake Function for Arbitrary Pipe Cross Section	3441
K. Yokoya (KEK)
Impedance of a Perforated Liner and Its Impact on the SSC Collider	3444
W. Chou, T. Barts (SSCL)
A Generalized Method for Calculating Wake Potentials	3447
O. Napoly (CE Saclay), B. Zotter (CERN), Y.H. Chin (LBNL)
The Interaction of a Beam With a Beam Line Higher-Order-Mode Absorber	3450
W. Hartung, T. Hays, J. Kirchgessner, D. Metzger, D. Moffat, H. Padamsee, D. Rubin, M. Tigner, A. Tribendis (Cornell University), V. Veshcherevich (INP Novosibirsk), K. Akai (KEK), J. Deford (LLNL)
Persistent Wakefields Associated with Waveguide Damping of Higher Order Modes	3453
N.M. Kroll, X. Lin (University of California San Diego)
Perturbation Theory of Broadband Impedances	3456
S. Heifets (SLAC)
Broadband Impedance of the B Factory	3459
S. Heifets (SLAC)
Study of a Detuned Accelerating Section With the Computer Program PROGON	3462
S.A. Heifets, S.A. Kheifets (SLAC)
Estimation of Broad Band Impedance of the SPring-8 Storage Ring	3464
T. Nakamura (JAERI-RIKEN)
Head-On and Long-Range Beam-Beam Tune Shift Spread in the SSC	3467
G. López (SSCL)
Beam-Beam Effects with Errors in the Crab Compensation	3470
D. Sagan (Cornell University)
A Strong-Strong Simulation on the Beam-Beam Effect in a Linac/Ring B-Factory	3473
R. Li, J. J. Bisognano (CEBAF)
Some Aspects of the Long Range Beam-Beam Interaction in Storage Rings	3476
A.B. Temnykh (BINP Novosibirsk), J.J. Welch (Cornell University)
Experimental Study of Crossing Angle Collision	3479
T. Chen (SLAC), D. Rice, D. Rubin, D. Sagan, M. Tigner (Cornell University)
Beam-Beam Experiments in the Tevatron	3482
D. Siergiej, G. Goderre (FNAL)
Beam-Beam Effects for the PEP-II B Factory	3485
M.A. Furman (LBNL), J.R. Eden (U. Washington)
Equivalent Equations and Incoherent Lifetime Calculated from e+e- Beam-Beam Simulation	3488
Y. Orlov (Cornell University)
Simulation of Beam-Beam Effects in Electron-Positron Rings	3491
K. Hirata, S. Matsumoto (KEK)
Longitudinal Beam-Beam Effects in Circular Colliders	3494
M. Hogan, J. Rosenzweig (University of California, Los Angeles)
Strong-Weak Beam-Beam Simulation with a Six Dimension Symplectic Code	3497
Y. Funakoshi, H. Koiso (KEK)
Synchrotron Beam-Loading Stability with a Higher RF Harmonic	3500
T.F. Wang (LANL)
Compensation of Bunch Position Shift Using Sub-RF Cavity in a Damping Ring	3503
K. Kubo, T. (KEK) Higo, S. Sakanaka (KEK)
Analytic Criteria For Stability of Beam-Loaded RF Systems	3506
S.R. Koscielniak (TRIUMF)
Beam Loading Effect in SSCL Coupled Cavity Linac	3509
Yu. Senichev, R. Cutler, J. Hurd, D. Raparia (SSCL)
The Ion Core Density in Electron Storage Rings with Clearing Electrodes	3512
E.V. Bulyak (Kharkov Institute)
Operation of the CEBAF Linac with High Beam Loading	3515
L. Merminga, J. J. Bisognano, C. Hovater, G. A. Krafft, S. N. Simrock (CEBAF), K. Kubo (KEK)
An Idea of Dynamical Cooling of Electron Beam in SR Ring	3518
S. Kato (Osaka U.)
The Principle of Ultra-Fast Automatic Cooling for Beams	3521
S. Gao, G. Qian (CIAE China)
On the Longitudinal Stability of Cooled Coasting Ion Beams	3524
S. Nagaitsev (IUCF)
Crystalline Beam Ground State	3527
J. Wei (BNL), A.M. Sessler (LBNL), X. Li (Rutgers)
Confinement and Stability of a Crystal Beam	3530
A.G. Ruggiero (BNL)
Bunched Beam Stochastic Cooling in the Fermilab Tevatron Collider	3533
G. Jackson, E. Buchanan, J. Budlong, E. Harms, P. Hurh, D. McGinnis, R. Pasquinelli, D. Peterson, D. Poll, P. Seifrid (FNAL)
Longitudinally Space Charge Dominated Beams in a Synchrotron	3536
T.J.P. Ellison, M.S. Ball, D.D. Caussyn, M.J. Ellison, B.J. Hamilton, S.S. Nagaitsev (IUCF)
High Density Plasma Source for Plasma Lens Experiments	3537
K. Nakamura (USHIO, Inc.), M. Gundersen, R. Liou (USC)
Measurement of Escaping Ions in the Fermilab Antiproton Accumulator	3540
P. Zhou, P.L. Colestock, C.A. Crawford, K. Junck (FNAL)
Experimental Demonstration of Plasma Lens Focusing	3543
G. Hairapetian, C.E. Clayton, P. Davis, S. Hartman, C. Joshi, C. Pellegrini (University of California, Los Angeles), T. Katsouleas (USC)
Numerical Modelling of Time-Space Behavior of High-Current Relativistic Electron Beam in Plasma Waveguide	3546
V. I. Karas' (Kharkov Institute), N. G. Belova (Russian Academy)
IPROP Simulations of the GAMBLE II Proton Transport Experiment	3549
D.R. Welch (Mission Research Corporation)
Plasma Lens and Plasma Wakefield Acceleration Experiments Using Twin Linacs	3552
A. Ogata, M. Arinaga, T. Kawakubo, K. Nakajima, H. Nakanishi, D. Whittum (KEK), T. Kobayashi, T. Ueda, Y. Yoshida (Nuclear Eng. Research Lab, Tokyo University), H. Shibata, S. Tagawa (Research Center Nuclear Science Technology, Tokyo University), Y. Nishida, N. Yugami (Utsunomiya U.)
Plasma Focusing of the Final Test Beam	3555
S. Rajagopalan (University of California, Los Angeles)
Emittance Growth in MEB and Its Control	3558
Y. Huang, R. Gerig, S. Machida (SSCL)
Longitudinal Diffusion as Inflicted by Arbitrary Band-Width Random-Modulated Currents in Feeders of Detuned Cavities	3561
S. Ivanov (IHEP Moscow)
Induced Beam Oscillations from Quadrupole Vibrations in the SLC Linac	3564
J.T. Seeman, R.L. Holtzapple, M.C. Ross (SLAC)
Effects of Magnetic Focusing on Longitudinal Emittance and Energy Dispersion of an Intense Short Accelerating Electron Pulse	3567
J.-M. Dolique, J.C. Coacolo (U. Joseph Fourier/CEA)
Measurement and Reduction of Transverse Emittance Blow-Up Induced by Space Charge Effects	3570
R. Cappi, R. Garoby, S. Hancock, M. Martini, J.P. Riunaud (CERN)
Transverse Emittance Growth in the Fermilab Antiproton Accumulator with High-Current Antiproton Stacks	3573
S.J. Werkema, D.W. Peterson, P. Zhou (FNAL)
Transverse Tails and Higher Order Moments	3576
W.L. Spence, F.-J. Decker, M.D. Woodley (SLAC)
Simulation of Emittance Dilution in Electron Storage Ring from Compton Backscattering	3579
L.N. Blumberg, E. Blum (BNL)
Transverse Effects of Longitudinal Wakefields at High Dispersion	3582
F.-J. Decker (SLAC)
Error and Tolerance Studies for the SSC Linac	3585
D. Raparia, C. R. Chang, W. Funk, F. Guy, J. W. Hurd (SSCL), K.R. Crandall (AccSys Technology)
Emittance Growth Due to Dipole Ripple and Sextupole	3588
H.-J. Shih, J.A. Ellison, B.S. Newberger, M. Syphers (SSCL)
Proton-Proton Scattering Contribution to Emittance Growth	3591
T. Garavaglia (SSCL)
Source Size Variation and Ion Effects in the SRS at Daresbury	3594
J.A. Clarke, D.M. Dykes, S.F. Hill, E.A. Hughes, M.W. Poole, P.D. Quinn, S.L. Smith, V.P. Suller, L.A. Welbourne (SERC Daresbury)
Global Trajectory Correction Algortihms in CLIC and Main Linac Alignment Tolerances	3597
C. Fischer (CERN)
Lattice Scaling and Emittance Control in the CLIC Main Linac	3600
G. Guignard (CERN)
Decoherence and Recoherence of Beam in Phase Space	3603
J. Shi, S. Ohnuma (University of Houston)
Space-Charge-Induced Emittance Growth in an Elliptical Charged Particle Beam with a Parabolic Density Distribution	3606
T.P. Wangler (LANL), P. Lapostolle, A. Lombardi (CERN)
Emittance and Luminosity Evolution During Collisions in the SSC Collider	3609
W. Chou, S. Dutt, T. Garavaglia, S. Kauffmann (SSCL)
Emittance Growth in Displaced, Space-Charge-Dominated Beams with Energy Spread	3612
J.J. Barnard, J. Miller (LLNL), I. Haber (Naval Research Laboratory)
An Injection Scheme for the Brookhaven ATF Utilizing Space-Charge Emittance Growth Compensation	3615
J.C. Gallardo, H.G. Kirk (BNL)
A Matrix Theory of the Motion of an Ellipsoidal Bunch in a Beam Control System with a Rectlinear Optical Axis and with Space Charge	3618
A. Dymnikov (University of St. Petersburg), R. Hellborg (University of Lund)
Space-Charge Dominated Beam Envelope Transport with Rotatable Axes	3621
E.Y. Tsiang
Effect of Space Charge Forces on Particle Tracking and Generation of High-Order Maps	3624
D.L. Bruhwiler, M. F. Reusch (Grumman Corporation)
Experimental Study of Longitudinal Dynamics of Space-Charge Dominated Parabolic Bunches	3627
D.X. Wang, D. Kehne, M. Reiser, J.G. Wang (University of Maryland), I. Haber (Naval Research Laboratory)
Transition Crossing in the Fermilab Main Ring, Past and Present	3630
I. Kourbanis, K.Y. Ng (FNAL)
Observation and Correction of Resonance Stopbands in the AGS Booster	3633
C. Gardner, L. Ahrens, J.W. Glenn, Y.Y. Lee, T. Roser, A. Soukas, W.T. Weng, W. van Asselt (BNL), Y. Shoji (KEK)
The Stability of Ions in a Storage Ring in the Presence of Small Gap Insertion Devices	3636
E. Bozoki (NSLS-BNL)
Simulation of Space-Charge Dominated Beam Dynamics in an Isochronous AVF Cyclotron	3639
S.R. Koscielniak (TRIUMF), S.R. Adam (PSI Switzerland)
Passage Through a Half-Integer Resonance Due to Space Charge for Different Initial Distributions	3642
A. Budzko (INR Moscow), Yu. Senichev (SSCL)
Estimation of Collective Effects for the EUTERPE Ring	3645
B. Xi, J.I.M. Botman, H.L. Hagedoorn, C.J. Timmermans, J. van Laar (Eindhoven U. of Tech.)
A Moment Method Laplace Solver for Low Energy Beam Transport Codes	3648
C.K. Allen, S.K. Guharay, M. Reiser (University of Maryland)
Evolution of Hadron Beams Under Intrabeam Scattering	3651
J. Wei (BNL)
Simulation Study of Ion Trapping in PLS Storage Ring	3654
J. Jung, I. Ko (Pohang Accelerator Laboratory)
Beam Halo Formation From Space-Charge Dominated Beams in Uniform Focusing Channels	3657
J.S. O'Connell (Booz, Allen & Hamilton), K.R. Crandall (AccSys Technology), R.S. Mills, T.P. Wangler (LANL)
Computer Simulation of the Maryland Transport Experiment	3660
I. Haber (Naval Research Laboratory), D. A. Callahan, A. B. Langdon (LLNL), M. Reiser, D.X. Wang, J.G. Wang (University of Maryland)
Integrated Numerical Modeling of a Laser Gun Injector	3663
H. Liu, S. Benson, J. Bisognano, P. Liger, G. Neil, D. Neuffer, C.K. Sinclair, B. Yunn (CEBAF)
Halo Formation in Mismatched, Space-Charge-Dominated Beams	3666
C.L. Bohn, J.R. Delayen (ANL)
Collective Effects in the VEPP-3 Storage Ring	3669
S.A. Belomestnykh, A.N. Voroshilov (BINP)
Single Bunch Effects in the Daresbury SRS	3672
L.A. Welbourne, J.A. Clarke, D.M. Dykes, S.F. Hill, E.A. Hughes, M.W. Poole, P.D. Quinn, S.L. Smith, V.P. Suller (SERC Daresbury)
The Effects of Coulomb Beam Interaction in Multiaperture Linac	3675
A.I. Balabin, G.N. Kropachev, I.O. Parshin, D.G. Skachkov (ITEP Moscow)
Longitudinal Instability of an Induction Linac with Acceleration	3678
L. Smith, E.P. Lee (LBNL)
On Solvable Model with Synchrotron Mode-Coupling	3681
D.V. Pestrikov (BINP/KEK)
On Limitations on Low- Rings Performance Due to Z-Instabilities	3684
N.S. Dikansky (BINP), D.V. Pestrikov (BINP/KEK)
On Landau Damping of Collective Beam-Beam Modes	3687
D.V. Pestrikov (BINP/KEK)
Synchronous Phase Changes Due to the Gap in the Bunch Train	3690
Z. Greenwald, M. Tigner (Cornell University)
Simulation and Compensation of Multibunch Energy Variation in NLC	3693
K.A. Thompson, R.D. Ruth (SLAC)
The Physical Mechanism of Ultra-Fast Automatic Cooling for Beams in the Six-Dimentional Emittance Space	3696
S. Gao, D. Liang, G. Qian, H. Sun (CIAE China)
An Exact Expression for the Momentum Dependence of the Space Charge Tune Shift in a Gaussian Bunch	3699
M. Martini (CERN)
Stored Beam Lifetime Evaluation Formulae for Electron Stoarge Rings	3702
A.V. Makulkin (All-Russ. Res. Inst.)
A Simulation Study on Beam Bunching in the KEK 2.5-GeV Linac New Pre-Injector	3705
T. Kamitani, J.-Y. Choi, A. Enomoto, K. Furukawa, Y. Ogawa, S. Ohsawa, I. Sato, T. Suwada, T. Urano (KEK)
New Outlooks on Bunched Beam Instabilities in Particle Accelerators. A Proposal for a Simple Method to Release a Potential Self-Consistent High Quality Beam	3708
M. Bergher (LURE)
Experimental Study of Collective Effects in BEP Storage Ring with High Stored Current	3711
V. Danilov, I. Koop, A. Lysenko, B. Militsyn, I. Nesterenko, E. Perevedentsev, E. Pozdeev, V. Ptitsin, Yu. Shatunov, I. Vasserman (BINP)
Beam Coupling Impedances of Axial Symmetric Structures	3714
W. Bruns (TU Berlin)