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K: Kurzzeitphysik

K 7: Kurzzeitphysik-Poster

K 7.2: Poster

Wednesday, April 5, 2000, 10:30–13:00, Aula

Time resolved polarization measurements of picosecond electron bunches — •Jörg Schuler¹, Kurt Aulenbacher¹, Dietrich von Harrach¹, and Erwin Reichert² — ¹Institut für Kernphysik der Universität Mainz — ²Institut für Physik der Universität Mainz

The most common way for polarized electron beam production at accelerator facilities nowadays is the photoemission from semiconductor crystals. Since the response time of these photocathodes was not well known, a 100keV pulsed polarized electron source in combination with a phase analyzer was constructed at the Mainz electron accelerator MAMI (MAinzer MIkrotron). This facility now provides several possibilities of time resolved measurements of the emitted photoelectron bunches. Time resolved polarization measurements of strained layer hetero- and superlattice-structures with a bunch duration of 4ps to 5ps and a time resolution of 1ps are presented.