Bonn 2010 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 12: Beschleunigerphysik XI

HK 12.5: Gruppenbericht

Montag, 15. März 2010, 17:55–18:15, HG ÜR 9

Status Report of the S-DALINAC* Polarized Electron Injector SPIN at Darmstadt — •Christian Eckardt1, Wolfgang Ackermann2, Thore Bahlo1, Phillip Bangert1, Roman Barday1, Uwe Bonnes1, Marco Brunken1, Ralf Eichhorn1, Joachim Enders1, Wolfgang F.O. Müller2, Markus Platz1, Yuliya Poltoratska1, Markus Roth1, Fabian Schneider1, Markus Wagner1, Antje Weber1, Thomas Weiland2, and Benjamin Zwicker11Institut für Kernphysik, Technische Universität Darmstadt, Germany — 2Institut für Theorie Elektromagnetischer Felder, Technische Universität Darmstadt, Germany

At the superconducting 130 MeV Darmstadt electron linac S-DALINAC [1] a source of polarized electrons [2] is being installed.

Polarized electrons are produced by photoemission from a negative electron affinity strained superlattice GaAs cathode and preaccelerated to 100 keV. With a Wien filter and Mott polarimeter in the beam line the polarization is manipulated and measured. For beam diagnostics wire scanners, fluorescent screens and a coaxial Faraday cup are included. To measure the beam polarization at higher energies, a 5-10 MeV Mott polarimeter and a 50-130 MeV Møller polarimeter as well as a Compton transmission polarimeter will be installed.

We report on the status of the implementation and show plans for future development and experiments.

*Supported by Deutsche Forschungsgemeinschaft through SFB 634.

[1] A. Richter, Proc. EPAC 96, Sitges, p.110.

[2] Y. Poltoratska et al., AIP Conference Proc. 1149 (2009), p.983.

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