Author/Authors :
Oh، نويسنده , , J.S. and Kim، نويسنده , , D.E and Kim، نويسنده , , E.S. and Park، نويسنده , , S.J. and Kang، نويسنده , , H.S and Lee، نويسنده , , T.Y and Koo، نويسنده , , T.Y. and Chang، نويسنده , , S.S. and Chung، نويسنده , , C.W and Nam، نويسنده , , S.H and Namkung، نويسنده , , W، نويسنده ,
Abstract :
Recent success in SASE-FEL experiments provides high confidence in achieving FEL radiation wavelengths as short as 0.1 nm.The SASE-XFEL requires multi-GeV electron beams with extremely low-emittance, short bunches, and long undulator systems. PAL is operating a 2.5-GeV electron linac as a full-energy injector to the PLS storage ring. With a proposed energy upgrade to 3.0 GeV and an in-vacuum undulator, PAL will be able to produce coherent X-ray radiation at wavelengths as short as 0.3 nm.This paper presents the preliminary design details for the proposed PAL-XFEL. The required undulator period is 12.5 mm with a 3-mm gap. The third harmonic enhancement technique can be used to obtain radiation wavelengths of 0.1 nm.The technical parameters related to these goals are reviewed.
Keywords :
PAL , NM , X-ray SASE , Third-harmonic enhancement , In-vacuum undulator , 0.3
