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Titolo:
MODULAR DATA-ACQUISITION SYSTEM BASED ON TRANSPUTER TECHNOLOGY FOR BI-DIMENSIONAL TIME COINCIDENCE COUNTING
Autore:
CONTI M; LAROBINA M; RUSSO P; SCARLATELLA A; BIGONGIARI A; FRANCHI G; LIPPI M; RAFFO C; DELGUERRA A; RUSSO S; VASSILIEV S;
Indirizzi:
UNIV NAPOLI FEDERICO 2,DIPARTIMENTO SCI FIS I-80125 NAPLES ITALY CAEN I-55049 VIAREGGIO ITALY UNIV NAPOLI FEDERICO 2,DIPARTIMENTO INFORMAT & SISTEMIST NAPLES ITALY DUBNA JOINT NUCL RES INST DUBNA RUSSIA INFN I-80125 NAPLES ITALY UNIV FERRARA,DIPARTIMENTO FIS I-44100 FERRARA ITALY INFN FERRARA ITALY
Titolo Testata:
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment
fascicolo: 1, volume: 345, anno: 1994,
pagine: 120 - 125
SICI:
0168-9002(1994)345:1<120:MDSBOT>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
6
Recensione:
Indirizzi per estratti:
Citazione:
M. Conti et al., "MODULAR DATA-ACQUISITION SYSTEM BASED ON TRANSPUTER TECHNOLOGY FOR BI-DIMENSIONAL TIME COINCIDENCE COUNTING", Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 345(1), 1994, pp. 120-125

Abstract

We describe the rationale and the test of a modular Data AcQuisition system (DAQ) for bi-dimensional (X-Y) digital imaging, based on a 16 channel Time-to-Digital Converter (TDC) NIM module connected to a specially designed TRAnsputer Module (TRAM). TDC time resolution is 12.5 ns(LSB) with a 40 MHz clock, time range is 3.3 s (28 bits), for a maximum rate of 500 kHz/channel guaranteed. The TDC + TRAM pair is the basic unit that can be scaled in modules of 8X + 8Y channels to meet the user's requirement for a larger number of X-Y channels to be consideredsimultaneously. TDC directly accesses the large RAM memory (32 Mbytes) of the INMOS T805 (20 MHz) transputer on the TRAM board. Each transputer in the modular system is a node of a ring network, whose root transputer node is hosted in a i386-based personal computer. After real-time data acquisition, a parallel reconstruction algorithm resolves time coincidences. Laboratory tests give a reconstruction time of 6.2 s for 1.28 10(5) events on 16 X + 16 Y channels (2 TDC + 2 TRAM), obtained in 1 s with a fluence of 5 X 10(4) events/mm2 (typically used in radiological imaging) on an area of 1.6 X 1.6 MM2.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 04:35:13