Advanced Accelerator Concepts: 12th Advanced Accelerator Concepts Workshop - Lake Geneva, Wisconsin, 10-15 July 2006

by Conde, Manoel; Eyberger, Catherine

• ISBN13: 9780735403789
• ISBN10: 0735403783
• Format: Hardcover
• Copyright: 2006-07-31
• Publisher: Springer Verlag

Summary

This workshop covered the general field of advanced particle accelerators, exploring the science and technology of a multitude of novel acceleration schemes. Various schemes under study utilize combinations of plasmas, laser beams, dielectric materials, and RF power. The development of technologies that will enable the design of future high energy physics machines is the underlying goal of this workshop, but other accelerator applications strongly benefit from this body of work.

Table of Contents

A meter-scale plasma wakefield accelerator	p. 3
High quality electron bunches up to 1 GeV from laser wakefield acceleration at LBNL	p. 8
Observations about RF breakdown from the CLIC high-gradient testing program	p. 15
Snapshots of laser-generated wakefields	p. 22
A theory for the RF surface field for various metals at the destructive breakdown limit	p. 27
Proton acceleration : new developments in energy increase, focusing and energy selection	p. 41
Experimental evidence for particle acceleration by stimulated emission of radiation	p. 51
Laser-plasma accelerators	p. 64
Demonstration of a novel positron source based on a plasma wiggler	p. 71
Plasma channels and accelerator applications - a tutorial	p. 83
New developments in space-charge beam physics research at the University of Maryland electron ring (UMER)	p. 94
Structure loaded vacuum laser-driven particle acceleration experiments at SLAC	p. 103
Fabrication of plasma transient density structures and its application of high-field plasma devices	p. 117
Summary report of working group 1 : computational accelerator physics	p. 131
Summary report of working group 2 : high-gradient structures	p. 139
Summary report of working group 3 : high energy density physics and exotic acceleration schemes	p. 147
Summary report of working group 4 : c-beam driven accelerators	p. 158
Summary report of working group 5 : beam generation, monitoring, and control	p. 163
Summary report of working group 6 : laser plasma acceleration	p. 175
Summary report of working group 7 : electromagnetic-structure based accelerators	p. 183
Overview of ring coolers for 6D cooling	p. 193
Enhancing plasma wakefield and E-cloud simulation performance using a pipelining algorithm	p. 201
Self-consistent electromagnetic modeling of electron sources	p. 208
Accurate modeling of laser-plasma accelerators with particle-in-cell codes	p. 213
Multiresolution simulations of photoinjectors	p. 220
Rotational mismatches and emittance growth for the UMER beam	p. 227
Modeling laser wake field acceleration with the quasi-static PIC code QuickPIC	p. 235
Pelegant : a parallel accelerator simulation code for electron generation and tracking	p. 241
Edge emittance growth and particle diffusion induced by numerical discrete-particle effects in self-consistent intense beam simulations	p. 248
Proposed RF breakdown studies at the AWA	p. 257
High gradient wakefields in dielectric loaded structures	p. 260
Development of a 20 MeV dielectric-loaded test accelerator	p. 266
Active RF pulse compression using electrically controlled semiconductor switches	p. 273
High-power RF sources for advanced accelerator R&D	p. 280
Materials science problems of the SCRF Q-slope	p. 288
High power RF sources for accelerators	p. 297
Development of dielectric-based high gradient accelerating structures	p. 303
Fast switching ferroelectric materials for accelerator applications	p. 311
Progress on diamond-based cylindrical dielectric accelerating structures	p. 320
Fast ferroelectric L-band tuner	p. 331
RF breakdown studies in Tungsten and copper structures	p. 339
RF breakdown and high gradient limits	p. 348
Phase sensitivity of relativistic gyrotrons to voltage deviation	p. 355
Multipactor modeling in cylindrical dielectric-loaded accelerators	p. 362
Development gas cluster ion beam surface treatments for reducing field emission and breakdown in RF cavities	p. 370
A Hilbert-space variational principle for spontaneous wiggler and synchrotron radiation	p. 381
PIC simulations of proton acceleration with high intensity lasers : the transparency regime, and interaction with underdense targets	p. 388
Guiding of laser beams in plasmas by radiation cascade compression	p. 395
Demonstration of high photon yields and nonlinearity in relativistic Thomson scattering	p. 402
High-brightness picosecond proton beam source based on BNL TW CO[subscript 2] laser : proof-of-principle experiments	p. 409
Novel computational approach to Weibel instability and beam transport in overdense plasma	p. 416
Relativistic dynamical Bi-stability of plasma waves in a plasma wakefield accelerator	p. 423
Proton acceleration to therapeutic energies with ultra-intense ultra-clean and ultra-short laser pulses	p. 430
Limits on production of narrow-band photons from inverse compton scattering	p. 437
Warm-fluid equilibrium theory of a charged particle beam in a periodic solenoidal focusing field	p. 445
Studies of particle acceleration by an active microwave medium	p. 452
Experimental observations of beam fluctuations in space-charge dominated beams	p. 461
Wakefields generated by electron beams passing through a waveguide loaded with an active medium	p. 468
Status of the polarized nonlinear inverse Compton scattering experiment at UCLA	p. 475
An inverse compton scattering radiation source via self-guiding in a plasma	p. 482
Thermal rigid-rotor equilibrium of intense beam propagation through a periodic solenoidal focusing field	p. 489
Electron bunch length measurements in the E-167 plasma wakefield experiment	p. 499
Analysis of ion motion and scattering in the extreme regime of high intensity electron beams in plasma wakefield accelerators	p. 504
Observation of enhanced transformer ratio in collinear wakefield acceleration	p. 511
Resonant plasma wakefield experiment : plasma simulations and multibunched electron beam diagnostics	p. 520
Subpicosecond double electron bunch generation	p. 527
Update on seeded SM-LWFA and pseudo-resonant LWFA experiments - (STELLA-LW)	p. 534
Energy measurements of trapped electrons from a plasma wakefield accelerator	p. 541
Generation EM waves by laser plasma interaction experiments in Utsunomiya University	p. 547
Radiative damping in plasma-based accelerators	p. 554
UCLA/FNPL underdense plasma lens experiment : results and analysis	p. 561
Novel module for plasma wakefield acceleration of a positron beam	p. 568
Investigation of optical parametric amplifier for optical stochastic cooling	p. 575
Modeling and experiments on injection into University of Maryland electron ring	p. 582
High-efficiency resonant cavity quadrupole moment monitor	p. 590
Experiment to measure ramped electron bunches at the UCLA Neptune Laboratory using a transverse deflecting cavity	p. 595
Numerical optimization of electron beams for high brightness x- and [gamma]-ray production	p. 602
Electron beam generation in tevatron electron lenses	p. 609
Coherent transition and Smith Purcell radiation experiments	p. 616
Simulation of longitudinally modulated electron beams	p. 621
Polarized gamma-source based on Compton backscattering in a laser cavity	p. 628
Beam dynamics in a hybrid standing wave-traveling wave photoinjector	p. 635
Beam compression experiments using the UCLA/ATF compressor	p. 642
Experimental testing of dynamically optimized photoelectron beams	p. 649
High power experiment of X-band thermionic cathode RF gun for Compton scattering X-ray source	p. 657
Beam coupling to optical scale accelerating structures	p. 665
Electron amplification in diamond	p. 672
Phase space tomography : a simple, portable and accurate technique to map phase spaces of beams with space charge	p. 680
Beam injection and matching studies at the University of Maryland electron ring (UMER)	p. 687
Manipulation of the longitudinal profile	p. 694
Beam control and steering in the University of Maryland electron ring (UMER)	p. 701
Simulation of laser wake field acceleration using a 2.5D PIC code	p. 709
Expanded model predictions for seeded SM-LWFA and pseudo-resonant LWFA	p. 714
A plasma lens for high intensity laser focusing	p. 721
Tomography of the injection and acceleration processes of monoenergetic electrons in a laser wakefield accelerator	p. 728
Relativistic extension of the accelerating-focusing phase in 3D nonlinear laser wake	p. 735
Experimental study on the scaling law of a self-modulated laser wakefield accelerator	p. 743
Corrugated plasma waveguides - optical slow wave structures	p. 750
Efficient electron injection into plasma waves using higher-order laser modes	p. 757
Experiments of frequency upshift by use of a laser-produced ionization front	p. 764
Laser wakefield acceleration of high-quality electron beams to 300 MeV and efficient initiation of photonuclear reactions	p. 771
Gas-filled capillary model	p. 777
Plasma density measurements in hydrogen-filled and ablative discharge capillaries based on stark broadening of atomic hydrogen spectral lines	p. 784
Preliminary results of mono-energetic electron beams from a laser-plasma accelerator driven by 200 TW femto second pulses	p. 792
CTR bunch length measurement of monoenergetic and Maxwellian electron beams from laser plasma cathode	p. 799
Application of the corrugated plasma waveguide to direct laser acceleration	p. 807
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