Bochum 1998 – wissenschaftliches Programm

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HK: Hadronen und Kerne

HK 56: Postersitzung

HK 56.45: Poster

Mittwoch, 18. März 1998, 17:00–19:00, Foyer

MSGC focal plane detector for the Munich Q3D magnetic spectrograph — •H.-F. Wirth, T. von Egidy, H. Angerer, J. Ott, and W. Schauer — Physik-Department, Technische Universität München, D-85748 Garching

A new detector concept was tested which consists of an MSGC structure evaporated for the first time directly on a scintillator glass. This detector is installed in the focal plane of the Q3D spectrograph of the Munich Tandem Accelerator. It allows to use the energy-rest signal of both light and heavy ions for particle identification [1]. A shape that follows the bent focal plane is made through putting together several approx. 10 cm long segments in small angles. This is necessary to get a sharp image over the whole active length of 90 cm. First measurements with a prototype presented here are very promising. A high spatial resolution better than 0.1 mm is realized trough a readout of three parallelly connected anode strips every 3.5 mm and a fit of the charge distribution for every single event.

[1] W. Schauer, Ph. D. Thesis, Technische Universität München (1997)