Bochum 2009 – scientific programme

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HK: Fachverband Hadronen und Kerne

HK 62: Accelerators and Instrumentation I

HK 62.5: Talk

Wednesday, March 18, 2009, 18:00–18:15, H-ZO 80

Drift Chamber Tests for the B1-Spektrometer at ELSA* — •Daniel Hammann — Physikalisches Institut, Bonn

At the Bonn electron accelerator ELSA photoproduction of mesons is studied at energies up to E_γ = 3.5 GeV. Presently, a new experimental setup is beeing installed. To detect mixed charged final states, the BGO-Ball of the former GRAAL-Experiment is combined with an open magnetic spectrometer in forward direction. The spectrometer utilizes scintillating fibers for tracking in front of the magnet and large drift chambers behind the magnet. A prototype drift chamber has been tested for efficiency and position resolution. Testing of the full size chambers has started. Test results shall be presented.

* supported by DFG SFB/TR16.