Title :
First experimental characterization of ROTOR: the new switched-current VLSI amplifier for X-ray spectroscopy with silicon drift detectors
Author :
Fiorini, C. ; Pullia, A. ; Gatti, E. ; Longoni, A. ; Buttler, W.
Author_Institution :
Ist. di Ingegneria Nucl., Politecnico di Milano, Italy
fDate :
6/1/2000 12:00:00 AM
Abstract :
In this paper we present the results of an experimental characterization of ROTOR, a new VLSI shaping amplifier conceived for multi-anode Silicon Drift Detectors, or other multi-element solid-state X-ray detection systems. The readout scheme is suitable for the demanding requirements of new X-ray spectroscopy experiments with synchrotron light, like X-ray holography, where both high count-rates and good energy resolutions are required. The circuit, which is of time-variant nature, features a trapezoidal weighting function obtained by means of a switched-current technique. A first prototype of the circuit, integrated with the 1 μm/5 V JFET/CMOS technology of the Fraunhofer-Institut, Duisburg (Germany), has been characterized in spectroscopy measurements with a Silicon Drift Detector. The experimental results are presented and discussed in the work
Keywords :
CMOS analogue integrated circuits; JFET integrated circuits; VLSI; X-ray spectrometers; amplifiers; nuclear electronics; silicon radiation detectors; switched current circuits; JFET/CMOS technology; ROTOR; Si; VLSI shaping amplifier; X-ray holography; X-ray spectroscopy; energy resolution; multi-element solid-state X-ray detection systems; new switched-current VLSI amplifier; readout scheme; silicon drift detectors; switched-current technique; trapezoidal weighting function; CMOS technology; Energy resolution; Holography; Silicon; Solid state circuits; Spectroscopy; Synchrotrons; Very large scale integration; X-ray detection; X-ray detectors;
Journal_Title :
Nuclear Science, IEEE Transactions on
