Author/Authors :
Milton ، نويسنده , , Stephen V. and Gluskin، نويسنده , , Efim and Arnold، نويسنده , , Ned D. and Berg، نويسنده , , Steven J. Berg، نويسنده , , William and Chae، نويسنده , , Yong-Chul and Crosbie، نويسنده , , Edwin A. and Dejus، نويسنده , , Roger J. and Den Hartog، نويسنده , , Patric and Friedsam، نويسنده , , Horst and Galayda، نويسنده , , John N. and Grelick، نويسنده , , Arthur D. Jones Jr.، نويسنده , , Justin and Kang، نويسنده , , Yoon and Kim، نويسنده , , Suk and Lewellen، نويسنده , , John W. and Lumpkin، نويسنده , , Alex H. and Maines، نويسنده , , James R. and Markovich، نويسنده , , Gregory M. and Moog، نويسنده , , Elizabeth R. and Nassiri، نويسنده , , Ali and Trakhtenberg، نويسنده , , Emil and Vasserman، نويسنده , , Isaac and Vinokurov، نويسنده , , Nikolai and Walters، نويسنده , , Dean R. and Wang، نويسنده , , Ju and Yang، نويسنده , , Bingxin، نويسنده ,
Abstract :
A Low-Energy Undulator Test Line (LEUTL) is under construction at the Advanced Photon Source (APS). Its purpose is to fully characterize innovative, future-generation undulators, and to act as a test line in pursuit of generating coherent radiation at wavelengths down to a few tens of nanometers. The line will use a high-brightness RF electron gun as its source and the APS linac to accelerate these electrons up to >650 MeV. This beam will then be directed through undulators located in a new 50 m long enclosure. In addition, there is an end station external to the radiation environment which will house the equipment necessary to directly study the light generated by the beam and undulator system. At present, the new enclosures are complete, the electron rf gun is installed and operational, and a part of the necessary transport line is installed. A prototypical undulator cell, suitable for testing the requirements of single-pass free-electron laser operation, is near completion and will be installed during the winter shutdown of 1998. This paper will describe the LEUTL project and, in particular, its capabilities for exploring the self-amplified spontaneous emission process.
