Mainz 2012 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 65: Beschleuniger
HK 65.2: Gruppenbericht
Freitag, 23. März 2012, 14:30–15:00, P 3
The S-DALINAC Polarized Electron Injector SPIN* — •Christian Eckardt1, Kurt Aulenbacher2, Uwe Bonnes1, Marco Brunken1, Ralf Eichhorn1, Joachim Enders1, Martin Espig1, Yuliya Fritzsche1, Oliver Haas1, Christoph Ingenhaag1, Janina Lindemann1, Markus Platz1, Markus Wagner1, Antje Weber1, and Benjamin Zwicker1 — 1Institut für Kernphysik, Technische Universität Darmstadt — 2Institut für Kernphysik, Johannes-Gutenberg-Universität Mainz
At the superconducting 130 MeV Darmstadt electron linac S-DALINAC a source of polarized electrons has been installed.
Pulsed Ti:Sapphire and diode lasers illuminate a superlattice-GaAs cathode, producing polarized electrons preaccelerated to 100 keV. A Wien filter and Mott polarimeter are used for spin manipulation and polarization measurement. Downstream of the superconducting injector linac a 5-10 MeV Mott polarimeter has been installed. A Møller polarimeter behind the main linac has been designed for energies between 50 and 130 MeV, and additional Compton-transmission polarimeters will be installed for online polarization monitoring. Photo-fission measurements of different uranium isotopes have been carried out and an active target setup is under investigation. We report on the status and performance of the source of polarized electrons and currently planned experiments with polarized beams.
*Supported by Deutsche Forschungsgemeinschaft through SFB 634.