Freiburg 2008 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 69: Beschleunigerphysik I
T 69.2: Vortrag
Mittwoch, 5. März 2008, 17:00–17:15, KGI-HS 1019
Status and latest developments of the S-DALINAC* — •Thorsten Kürzeder1, Wolfgang Ackermann2, Florian Albert1, Asim Araz1, Roman Barday1, Marco Brunken1, Uwe Bonnes1, Jens Conrad1, Christian Eckhardt1, Ralf Eichhorn1, Joachim Enders1, Michael Hertling1, Christoph Hessler1, Florian Hug1, Christian Klose1, Martin Konrad1, Wolfgang F.O. Müller2, Norbert Pietralla1, Markus Platz1, Yuliya Poltoratska1, Achim Richter1, Felix Schlander1, Sven Sievers1, Bastian Steiner2, Tobias Weilbach1, and Thomas Weiland2 — 1Institut für Kernphysik, TU Darmstadt, Schlossgartenstrasse 9, 64289 Darmstadt — 2Institut für Theorie Elektromagnetischer Felder, TU Darmstadt, Schlossgartenstrasse 8
Since 1991 the superconducting Darmstadt electron linear accelerator S-DALINAC provides a beam of up to 130 MeV for nuclear and astrophysical experiments. The current status and the developments of the accelerator in the last year will be presented in this talk.
After several years of operation, six out of the ten accelerating cavities have been retuned to recover field flatness again. This minimizes the effect of field emission and improves the cavity performance. Further on, a heat treatment was performed at 800°C inside a vacuum furnace to reduce the amount of hydrogen inside the niobium of those cavities, resulting in lower RF losses when cooled down again.
To complement the existing experimental capabilities, a source of polarized electrons is under construction and tested offline.
*Supported by DFG through SFB 634.