Present and Future of Laser Accelerator 2.Principle of Laser-Plasma Acceleration

Abstract

Principles of laser-plasma acceleration, mainly electron acceleration, are briefly reviewed. Necessary experimental setup is first given, and follow descriptions of processes involved in the acceleration; that is, plasma creation, plasma wave excitation, test bunch generation and loading. Problems are described on short acceleration distance, broad energy spectrum of the accelerated particles, unstable operation, etc., and their solutions are suggested.