Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

GaAs readout electronics for particle detectors

GaAs Ausleseelektronik für Teilchendetektoren
: Lauxtermann, S.; Bronner, W.; Runge, K.

Pelfer, P.G.; Ludwig, J.; Runge, K.; Rupprecht, H.S.:
Gallium Arsenide and Related Compounds. Third International Workshop
World Scientific, 1995
International Workshop Gallium Arsenide and Related Compounds <3, 1995, San Miniato>
Conference Paper
Fraunhofer IAF ()
GaAs; HEMT; low noise amplifier; radiation detection; rauscharmer Verstärker; Strahlendetektion

A monolithically integrated GaAs frontend will be presented consisting of a Charge Sensititve Preamplifier (CSP) and a shaper with a time constant of tau(ind M) = 12 ns and an amplification of 43.7 mV/fC into 50 Ohm. The circuit is based on 0.3 micron double pulse doped pseudomorphic HEMT transistors with a maximum f(ind t)(max) = 50 GHz. To demonstate the funcionality of this electronics the diced chip was connected to a 200 micron thick, 1x1 qmm large GaAs pad detector and spectra of Minimum Ionizing Particles (MIP) were recorded. On another chip a binary readout design was investigated based on the concept of a transimpedance amplifier followed by a univibrator. The performance of that chip will also be presented.