Dear Colleagues:

The rapidly emerging field of high brightness electron beam of stands at the intersection of traditional disciplines high gradient acceleration, relativistic beam physics, short-pulse lasers, and plasma physics. A coalescing of interdisciplinary efforts in recent years has allowed the frontiers of high brightness electron beam physics and technology to advance to new limits. This progress has in turn enabled two significant new applications:

1) Advanced, ultra-high frequency accelerators, mainly based on lasers and/or plasmas;

2) Self-amplified, spontaneous emission free-electron lasers.

We are therefore organizing a workshop to address the physics of high brightness electron beams, and the connection between progress in high brightness beams and their application. This workshop is a successor to similar workshops held at UCLA in 1994 and 1999 (sponsored by the ICFA Panel on Advanced Accelerators), and Indiana in 1995. It is also meant as partial successor to the Arcidosso series (sponsored by the ICFA Panel on Beam Dynamics). As such, this workshop is endorsed by both the ICFA Panel on Beam Dynamics, and the ICFA Panel on Advanced Accelerators. While the 1999 UCLA workshop emphasized communication of techniques between the high brightness electron and ion beam communities, this workshop will concentrate on exploring the relationship between high brightness electron beams, and their use in the most challenging of applications.

This workshop will explore the physics of high brightness electron beams, the methods used to describe and analyze physical effects in these systems, and the issues surrounding the creation, preservation, and diagnosis of such beams. As the leading-edge applications of high brightness beams are intimately connected to their production, the workshop will also examine use of these beams in plasma accelerators, X-ray FELs, and other systems. Physical characteristics in common to both the high brightness beam system and applications will be an organizing theme for the workshop. Examples of these characteristics include ultra-large amplitude fields, central to acceleration in plasma as well as in electron sources, and the generation of intense coherent electromagnetic radiation, important in both FELs and in intense beam manipulations such as pulse compression.

We hope to see you in Sardinia in July.

Best Regards,

James Rosenzweig & Luca Serafini

Note: this workshop is planned to be immediately after the US Advanced Accelerator Concepts Workshop in Oxnard, CA, USA, with 3 days travel allowed. A guide to travel to Sardinia will be included on the conference web site: http://www.crs4.it/~zip/EGVISC95/chia_laguna.html/. The conference hotel web site is located at http://web.tin.it/chialaguna/. More information is available now by request, from the conference secretary, Melinda Laraneta laraneta@physics.ucla.edu.