ERL2013 - List of Authors (Kirsch, E.)

Paper

Title

Page

Longitudinal Beam Halo in the Photoemission from GaAs-Photocathodes in a 100keV DC Gun

72

M.A. Dehn, K. Aulenbacher, F. Fichtner, E. Kirsch, V. Tioukine
IKP, Mainz, Germany

At Johannes Gutenberg-University Mainz measurements of the time response of photocathodes can be performed routinely at the 'Testquellenlabor' (source testlab) using a deflector cavity. Short electron bunches are generated using a femtosecond tunable laser system operating at 800 nm for best polarization/QE if GaAs is used. In our experiment the laser radiation is also frequency-doubled to 400 nm in order to compare the time response at different wavelengths. First measurements show a strong reduction of the longitudinal beam profile at 400nm without the trailing electrons which are typically observed at 800 nm.

Slides WG502 [0.784 MB]

Paper	Title	Page
WG502	Longitudinal Beam Halo in the Photoemission from GaAs-Photocathodes in a 100keV DC Gun	72
	M.A. Dehn, K. Aulenbacher, F. Fichtner, E. Kirsch, V. Tioukine IKP, Mainz, Germany
	At Johannes Gutenberg-University Mainz measurements of the time response of photocathodes can be performed routinely at the 'Testquellenlabor' (source testlab) using a deflector cavity. Short electron bunches are generated using a femtosecond tunable laser system operating at 800 nm for best polarization/QE if GaAs is used. In our experiment the laser radiation is also frequency-doubled to 400 nm in order to compare the time response at different wavelengths. First measurements show a strong reduction of the longitudinal beam profile at 400nm without the trailing electrons which are typically observed at 800 nm.
	Slides WG502 [0.784 MB]