Radiation hardness of MSM biasing structures for GaAs microstrip detectors

In order to achieve a high signal-to-noise ratio and a low-space consumption it is necessary to use integrated resistors for the biasing of GaAs microstrip detectors used in high-energy physics experiments (e.g. CMS, H1). Metal-semiconductor-metal (MSM) structures operating in the reach through regi...

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Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 1997-04, Vol.388 (3), p.390-394
Main Authors: Rente, C, Arbabi, S, Braunschweig, W, Breibach, J, Chu, Z, Karpinski, W, Krais, R, Kubicki, T, Lübelsmeyer, K, Schoentag, M, Siedling, R, Syben, O, Tenbusch, F, Toporowski, M, Wittmer, B, Xiao, W.J
Format: Article
Language:English
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Summary:In order to achieve a high signal-to-noise ratio and a low-space consumption it is necessary to use integrated resistors for the biasing of GaAs microstrip detectors used in high-energy physics experiments (e.g. CMS, H1). Metal-semiconductor-metal (MSM) structures operating in the reach through regime seem to be a promising solution for that purpose. According to the requirements on radiation hardness of strip detectors to be used in the CMS experiment, we have irradiated MSM biasing structures with up to 4.6 × 10 14 neutrons cm 2 . The radiation effects on the dc and noise characteristics of the devices are investigated. Furthermore, the effects of an annealing procedure are examined.
ISSN:0168-9002
1872-9576
DOI:10.1016/S0168-9002(96)01262-4