Münster 2002 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 21: Instrumentation and Applications II
HK 21.5: Vortrag
Dienstag, 12. März 2002, 18:15–18:30, F
Recent Developments at the S–DALINAC⋆ — •U. Laier1, W. Beinhauer1, M. Brunken1, M. Gopych1, H.-D. Gräf1, T. Hartmann1, M. Hertling1, S. Kostial1, A. Krassilnikov2, A. Lenhardt1, P. Michel3, M. Platz1, A. Richter1, G. Schrieder1, B. Schweizer1, A. Stascheck1, O. Titze1, S. Watzlawik1, T. Weiland2, and H. Weise4 — 1Inst. für Kernphysik, TU Darmstadt — 2Fachgebiet TEMF, TU Darmstadt — 3FZ Rossendorf — 4TESLA collaboration, DESY Hamburg
We report on new developments and studies at the
S–DALINAC. Results of measurements performed at the
superconducting cavities which revealed the emission of light in
conjunction with field emission are presented. The former concept
of a fully digital RF control system was changed to a hybrid
system consisting of a fast analog feedback circuit and a
DSP-based unit. A fast computer code (V-code) using the model of
ensembles to describe the beam properties was implemented to study
injector beam dynamics. Diagnostics for transverse beam properties
using tomographic techniques have been developed and tested.
Compton diodes developed for the bremsstrahlung diagnosis at the
S–DALINAC were also used for special measurements at TTFL
and at ELBE. A new high energy bremsstrahlung facility was set up
to measure the polarizability of the nucleon by Compton scattering
and the 169∘-magic-angle spectrometer was equipped with
silicon microstrip detectors for resolution improvement.
⋆ Supported by the DFG (FOR 272/2-1 and GRK 410/2)