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Köln 2004 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 31: Instrumentation and Applications IV

HK 31.7: Talk

Wednesday, March 10, 2004, 15:45–16:00, C

Development of a scintillating fibre hodoscope with multi-anode photomultiplier read-out for use in a kaon spectrometer — •Carlos Ayerbe and Patrick Achenbach — Inst. für Kernphysik, Univ. Mainz, 55099 Mainz

Two compact and fast hodoscopes based on scintillating fibres with multi-anode photomultiplier read-out have been constructed. The system is being developed to accommodate for the high count rates expected in the focal plane of a kaon spectrometer at the spectrometer facility at MAMI. The fibres are of type Kuraray SCSF-78 with double cladding and 0.83 mm cross-section, of which 128 are closely packed in 2 double layers and coupled to a Hamamatsu 32 channel linear array photomultiplier. Results on light yield, spatial and timing resolutions, cross-talk between neighbouring pixels and efficiencies are presented. The concept for a future system with 4096 fibres to be read out with CATCH front-end modules will be discussed briefly.

Work supported by Deutsche Forschungsgemeinschaft (SFB 443).

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