HADES tracking system: First in-beam experience

Kanaki, K.; Dohrmann, F.; Enghardt, W.; Garabatos, C.; Grosse, E.; Hutsch, J.; Kampfer, Burkhard; Kondyurin, A.; Kotte, R.; Naumann, L.

doi:10.1109/TNS.2004.829444

HADES tracking system: First in-beam experience

2004

4 pages

Part of Real-time. Proceedings, 13th Conference on Computing Applications in Nuclear and Plasma Sciences, RT2003, Montreal, Canada, May 18-23, 2003

Published in:

IEEE Trans.Nucl.Sci. 51 (2004) 939-942

Contribution to:

13th IEEE - NPSS Real Time Conference (RT 2003)

DOI:

10.1109/TNS.2004.829444

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Abstract: (IEEE)

The high acceptance di-electron spectrometer at the GSI, Darmstadt, Germany, heavy-ion synchrotron Schwerionen Synchrotron is a high-resolution second-generation detector system for lepton pair spectroscopy. Its low-mass tracking system consists of two pairs of planes of trapezoidally shaped multiwire drift chambers, installed on either side of a superconducting toroidal magnet. This paper summarizes our experience with the construction and in-beam operation of the six large-area chambers produced by Forschungszentrum Rossendorf. Studies on creeping of aluminum wires over a period of three years are presented. In addition, the observation of the growth of filaments with various shapes and sizes in one of the chambers used in-beam will be discussed in detail.

aging
drift chambers
energy dispersive x-ray (EDX) spectrometry
filaments
infrared spectroscopy
rubber sealants
wire tension

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