Project Overview

The U.S. Navy has funded the construction of a high-power infrared FEL at Jefferson Lab. This machine is to produce a 1kW IR photon beam in the 3 to 6.6 micron range. It will be driven by a compact, SRF-based energy-recovering CW electron accelerator, the base parameters of which are given in the following table.

Accelerator Parameter List
Injection kinetic energy:	10 MeV
Beam kinetic energy at wiggler:	42 MeV
Beam kinetic energy at dump:	10 MeV
Beam current:	5 mA
Normalized rms emittance:
design:	13 mm-mrad
nominal:	5 mm-mrad
RMS Momentum spread at wiggler:	0.5%
Full momentum spread after wiggler:	5%

The machine concept, shown below, comprises a 10 MeV injector, a linac based on a single high-gradient Jefferson Lab accelerator cryomodule, a wiggler and optical cavity, and an energy-recovery recirculation arc. Energy recovery limits cost and technical risk by reducing the RF power requirements in the driver accelerator.

IR-FEL Driver Machine Concept

Machine construction will be complete in October 1997, with immediate beam operations following to produce first light by January 1998. High power operation for end users commences in the spring of 1998. The project cost is 8.4 M$, US. Further project information is available elsewhere.

In the FODOmat's A Guide to the Design,

**you are here! **	Project Overview
**the next link is	System Design Process
	Application of Process to High Power IR FEL
	Description of Solution
	System Performance
	Error Studies
	Upgrade Scenarios

	Go to The FODOmat's FEL Page

Last modified: 10 March 1997
http://www.jlab.org/~douglas/ is maintained by: douglas@jlab.org