TY - CPAPER
AU - Martin, I.P.S.
AU - Bartolini, R.
AU - Dunning, D.J.
AU - Thompson, N.
TI - Studies of Undulator Tapering for the CLARA FEL
J2 - Proc. of FEL2015
AB - Undulator tapering is a well-known method for enhancing the performance of free-electron lasers [1]. It works by keeping the resonant wavelength constant, despite variation in the electron beam energy. Both the energy-extraction efficiency and the spectral brightness of the FEL can be improved using this technique. In this paper we present recent studies of undulator tapering for the CLARA FEL in both SASE and seeded modes. The methods used to optimise the taper profile are described, and the properties of the final FEL pulses are compared.
PB - JACoW
CY - Geneva, Switzerland
SP - 412
EP - 416
KW - FEL
KW - electron
KW - undulator
KW - laser
KW - brightness
DA - 2015/12
PY - 2015
SN - 978-3-95450-134-2
DO - 10.18429/JACoW-FEL2015-TUP025
UR - http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/tup025.pdf
ER -