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HK: Hadronen und Kerne
HK 56: Postersitzung
HK 56.56: Poster
Wednesday, March 18, 1998, 17:00–19:00, Foyer
— •D. Roßbach1, B. Aengenvoort1, J. Domscheit1, H. Hübel1, W. Korten2, E. Mergel1, and W. Pohler1 — 1Institut für Strahlen– und Kernphysik, Universität Bonn, D 53115 Bonn, Germany — 2CEA Saclay, F 91191 Gif-sur-Yvette Cédex, France
Conversion-electron spectrometers that consist of a magnetic
’transport’ field and a high resolution detector suffer, in the case of in-beam measurements, from
large δ-electron background and Doppler broadening. Both problems can be reduced if a segmented Si detector is used,
which also allows the measurement of coincidences between its
segments. We have developed a 0.5 mm thick Si detector that is divided
into 24 segments. It has a central hole of 4 mm diameter and six
concentric rings which are separated into four segments each. The
detector can be used with a superconducting solenoid magnet
[M. Guttormsen et al., Nucl. Instr. and Meth. 227, 489 (1984)] and with mini-orange type magnets. The results of test
measurements are reported.
∗supported by DFG