JACoW logo

Joint Accelerator Conferences Website

The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.


RIS citation export for MOP035: Optimum Undulator Tapering of SASE FEL: Theory and Experimental Results From FLASH2

TY - CONF
AU - Schneidmiller, E.
AU - Yurkov, M.V.
ED - Bishofberger, Kip:Carlsten, Bruce (LANL, Los Alamos, NM, USA)[ORCID:0000-0001-5619-907X]
ED - Schaa, Volker RW
TI - Optimum Undulator Tapering of SASE FEL: Theory and Experimental Results From FLASH2
J2 - Proc. of FEL2017, Santa Fe, NM, USA, August 20-25, 2017
C1 - Santa Fe, NM, USA
T2 - International Free Electron Laser Conference
T3 - 38
LA - english
AB - Optimization of the amplification process in FEL amplifier with diffraction effects taken into account results in a specific law of the undulator tapering.* It is a smooth function with quadratic behavior in the beginning of the tapering section which transforms to a linear behavior for a long undulator. In practice, an undulator consists of a sequence of modules of fixed length separated with intersections. Two modes of undulator tapering can be implemented: step tapering and smooth tapering. Step tapering uses a step change of the undulator gap from module to module, while smooth tapering assumes additional linear change of the gap along each module. In this report, we simulate the performance of both experimental options and compare with theoretical limit.
PB - JACoW
CP - Geneva, Switzerland
SP - 113
EP - 116
KW - ion
KW - undulator
KW - FEL
KW - electron
KW - radiation
DA - 2018/02
PY - 2018
SN - 978-3-95450-179-3
DO - 10.18429/JACoW-FEL2017-MOP035
UR - http://jacow.org/fel2017/papers/mop035.pdf
ER -