Title :
A multi-channel digital acquisition system for Ge spectroscopy in the GERDA experiment
Author :
Riboldi, Stefano ; Ur, Calin A. ; Bellato, Marco ; Cattadori, Carla ; Andragora, Alessio D. ; Vacri, Assunta Di ; Isocrate, Roberto ; Manea, Christian ; Pullia, Alberto ; Alvarez, Carlo Rossi ; Rusu, Claudiu ; Zocca, Francesca
Author_Institution :
Phys. Dept., Univ. degli Studi di Milano, Milan, Italy
fDate :
Oct. 30 2010-Nov. 6 2010
Abstract :
We developed a multi-channel digital acquisition (DAQ) system, able to operate in connection to Germanium-based detectors and state-of-the-art charge sensitive preamplifiers. The DAQ system is composed of up to 6 front-end NIM modules, each one with 4 free running analog to digital converters (100 MHz, 14 bits) and up to 6 custom PCI based receiver boards inside a single personal computer (PC). We also implemented a comprehensive graphical user interface on the user PC and a digital triggering algorithm inside the DAQ system by means of programmable logic devices (FPGA) and a suitable global slow control for the whole system. The performances of the DAQ system in terms of energy resolution, sustained data transfer rate, digital trigger sensitivity, etc. are all within the specifications of the GERDA experiment for Phase-I.
Keywords :
analogue-digital conversion; data acquisition; field programmable gate arrays; germanium radiation detectors; graphical user interfaces; high energy physics instrumentation computing; nuclear electronics; particle spectrometers; preamplifiers; trigger circuits; FPGA; GERDA experiment; PCI based receiver board; analog-to-digital converter; data transfer rate; digital trigger sensitivity; digital triggering algorithm; energy resolution; front-end NIM module; germanium spectroscopy; germanium-based detector; global slow control system; graphical user interface; multichannel digital acquisition system; state-of-the-art charge sensitive preamplifier; Calibration; Channel estimation; Data acquisition; Detectors; Electronic mail; Energy resolution; Preamplifiers;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2010 IEEE
Conference_Location :
Knoxville, TN
Print_ISBN :
978-1-4244-9106-3
DOI :
10.1109/NSSMIC.2010.5873860
