Preface
The Tenth Workshop on Advanced Accelerator Concepts took place once again at a
beach in Southern California. It was UCLA's third hosting of this series of Department
of Energy sponsored Workshops, and this one at Mandalay Beach was a return to an outof-the-way setting.
Seclusion promotes interaction between the attendees, and
discussions and contacts were further facilitated by the daily happy hour at the Surf
Room. As usual, the Program Committee invited a group of scientists with eclectic
research interests in experiments, theory, and simulations. These interests include: the
acceleration of heavy ions, protons, electrons, and positrons; using accelerating structures
composed of plasmas, dielectrics, metals, and "vacuum"; developing power sources of
electromagnetic radiation from the visible to cm-wavelengths or particle beams to power
these structures; and the generation, manipulation, and characterization of beams of
particles. Among the 163 invited participants were 35 graduate students, and most of
them attended the Workshop with free room and board and a minimal registration fee as
recipients of AAC2002 Student Fellowships.
The Workshop program was organized around seven Working Groups as listed
below. The first day of the Workshop was dedicated to seven Tutorial presentations that
gave a first overview of the topics to be covered during the week, and four of these are
represented in these Proceedings. The subsequent days started with more specific Invited
talks and seven of the nine presented also appear in these Proceedings. The remainder of
the week was dedicated to the seven Working Groups or their joint sessions. Some of the
topics addressed within each group were as follows. (1) Computational Accelerator
Physics: Working Group 1 discussed advanced algorithms and their applications to
accelerators and particle beams. This was the debut of numerical simulation as a separate
Working Group in these Workshops. (2) High Energy Density Physics and Exotic
Acceleration Schemes: Working Group 2 covered the production of low-emittance ion
beams from laser-heated foils. Also covered were exotic acceleration schemes, including
near-field and far-field accelerators using laser beams with wavelengths from one to ten
microns (see also Working Group 5). (3) Millimeter-Wave Sources: Working Group 3
focused on RF sources and components in the 11-100 GHz range with an emphasis on
high-power testing. (4) Electron-Beam Driven Accelerators: Working Group 4 discussed
plasma wakefield accelerators using electron or positron beams as the driver. (5)
Electromagnetic-Structure Based Accelerators: Working Group 5 covered a wide range
of research into slow-wave structures (e.g., dielectric and photonic band gap) and fastwave structures (e.g. inverse free-electron laser accelerators and other laser-based
"vacuum" accelerators). (6) Laser-Plasma Acceleration: Working Group 6 was by far the
largest group. The topics discussed included plasma accelerators (excited by single,
multiple, or long laser pulses), structures for guiding intense laser pulses, and laserplasma electron injectors. (7) Beam Generation, Monitoring and Control: Working
Group 7 dealt with issues including the production and preservation of high-brightness
beams as well as their characterization.
The papers in these Proceedings are organized as follows. First, the Tutorial and
Invited papers are printed in the order they were presented at the Workshop. This
collection of papers would be a good starting point for readers less familiar with current
research in Advanced Accelerator Concepts. Second, papers prepared by the Working
Group leaders summarizing the activities in and conclusions of their respective groups
are given.
Finally, the contributed papers are arranged into a rainbow of
interrelated/overlapping subject matter. Starting with simulations, the spectrum of papers
proceeds to structures operating at high frequencies to low frequencies, to power sources,
to beam-driven plasma structures, to laser-driven plasma structures, and to the
manipulation and control of high-brightness beams. The hope is that the reader interested
in a particular topic will be led naturally into the adjacent topics. We believe that these
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Proceedings, while not exhaustive, can serve as a reference or a snapshot in time of the
present status of Advanced Accelerator Concepts research and will inspire future
research. The number of papers submitted to these Proceedings and their quality attest to
the success of this Workshop. After reviewing this volume, we hope the reader will see
that significant progress has been made since the Santa Fe Workshop in 2000, and that
the seeds planted in past Workshops are nearing fruition. We are looking forward,
expectantly, to the AAC2004 Workshop.
We would like to acknowledge the excellent web-site support provided by the UCLA
Departments of Physics. Finally, we would like to thank the High Energy Physics
Division of the U.S. Department of Energy for its financial support without which these
Workshops would not be possible.
Chris Clayton
University of California Los Angeles
Patrick Muggli
University of Southern California
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