CERN Accelerating science

Academic Training Lecture
Title	Introduction to free-electron lasers
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Author(s)	Walker, Richard P (speaker) (RAL Rutherford Laboratory, UK)
Affiliation	(Rutherford Laboratory, UK)
Corporate author(s)	CERN. Geneva
Imprint	2002. - Transparencies.
Series	(CERN Academic Training Lecture ; 399) (Regular Lecture Programme)
Note	CERN, Geneva, 15 - 17 May 2002 No AgendaMaker available. No streaming video available
Presented at	Academic Training Lectures, CERN, Geneva, Switzerland, 1 Sep 2001 - 30 Jun 2002
Subject category	Accelerators and Storage Rings
Accelerator Physics	Accelerator Physics
Abstract	The Free-electron laser (FEL) is a source of coherent electromagnetic radiation based on a relativistic electron beam. First operated 25 years ago, the FEL has now reached a stage of maturity for operation in the infra-red region of the spectrum and several facilities provide intense FEL radiation beams for research covering a wide range of disciplines. Several projects both underway and proposed aim at pushing the minimum wavelength from its present limit around 100 nm progressively down to the 1 Angstrom region where the X-ray FEL would open up many new and exciting research possibilities. Other developments aim at increasing power levels to the 10's of kW level. In this series of lectures we give an introduction to the basic principles of FELs and their different modes of operation, and summarise their applications and current state of development.
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