TY - CPAPER
AU - Hacker, K.E.
AU - Ackermann, S.
AU - Bödewadt, J.
AU - Dohlus, M.
AU - Ekanayake, N.
AU - Khan, S.
AU - Laarmann, T.
AU - Lazzarino, L.L.
AU - Lechner, C.
AU - Maltezopoulos, Th.
AU - Molo, R.
AU - Plath, T.
AU - Roßbach, J.
AU - Schlarb, H.
TI - Measurements and Simulations of Seeded Electron Microbunches with Collective Effects
J2 - Proc. of FEL2015
AB - Measurements of the longitudinal phase-space distribution of electron bunches seeded with an external laser were done in order to study the impact of collective effects on seeded microbunches in free-electron lasers. Velocity bunching of a seeded microbunch appears to be a viable alternative to compression with a magnetic chicane under high-gain harmonic generation seeding conditions when the collective effects of Coulomb forces in a drift space and coherent synchrotron radiation in a chicane are considered. Measurements of these effects on seeded electron microbunches were performed with an RF deflecting structure and a dipole magnet which streak out the electron bunch for single-shot images of the longitudinal phase-space distribution. Particle tracking simulations in 3D predicted the compression dynamics of the seeded microbunches with collective effects.
PB - JACoW
CY - Geneva, Switzerland
SP - 650
EP - 653
KW - electron
KW - simulation
KW - laser
KW - FEL
KW - bunching
DA - 2015/12
PY - 2015
SN - 978-3-95450-134-2
DO - 10.18429/JACoW-FEL2015-WEP031
UR - http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/wep031.pdf
ER -