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

Volume

47

Issue

3

fYear

2000

fDate

6/1/2000 12:00:00 AM

Firstpage

823

Lastpage

828

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;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.856524

Filename

856524