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Performance of an ASD-8 based wire chamber readout system. |
Author
Krusemann BAM. Bassini R. Baumer C. van den Berg AM. Dressnandt N. Frekers D. Hagemann M. Hannen VM. Henderson R. Heyse J. Jacobs E. de Huu MA. Mielke M. Newcomer M. Rakers S. Reitz B. Schmidt R. So
lbach H. Wortche HJ.
Institution
Inst. fur Kernphys., Munster Univ., Germany.
Title
Performance of an ASD-8 based wire chamber readout system.
Source
IEEE Transactions on Nuclear Science, vol.47, no.6, pt.4, Dec. 2000,
pp.2741-7. Publisher: IEEE, USA.
Abstract
For the medium-energy proton polarimeter mounted at the focal-plane of the Big-Bite Spectrometer at Kernfysisch Versneller Instituut Groningen, a new wire-chamber readout has been developed. The cha
ge-sensitive preamplifier is based on the ASD-8 B chip which has an input impedance of 115 Omega . This low impedance and the short integration time of 6 ns at a usable sensitivity of 5 fC allow hig
readout rates and low gas amplifications. This front-end circuit is mounted on all four multi-wire proportional chambers and on two vertical-drift chambers with 3872 wires in total. Measurements ha
e been made using sources and intermediate energy protons. Special attention was given to determine the time-over-threshold properties of the circuit. The time-over-threshold capabilities of the rea
out system extend future applications to particle discrimination, or, in connection with other detector types, to energy-resolving readout. The operational performance of the readout system is prese
ted. (20 References).
Münster |
Universität Münster |
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AG Frekers |
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Timo Kellmann
automatically created: July 2001
