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1. (EP2746817) Readout circuits for multi-channel photomultiplier arrays

Application Number: 12382516 Application Date: 20.12.2012
Publication Number: 2746817 Publication Date: 25.06.2014
Publication Kind : A1
Designated States: AL,AT,BA,BE,BG,CH,CY,CZ,DE,DK,EE,ES,FI,FR,GB,GR,HR,HU,IE,IS,IT,LI,LT,LU,LV,MC,ME,MK,MT,NL,NO,PL,PT,RO,RS,SE,SI,SK,SM,TR
IPC:
G01T 1/24
G PHYSICS
01
MEASURING; TESTING
T
MEASUREMENT OF NUCLEAR OR X-RADIATION
1
Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
16
Measuring radiation intensity
24
with semiconductor detectors
CPC:
G01T 1/248
Applicants: UNIV BARCELONA
CT INVESTIG ENERGETICAS CIEMAT
Inventors: GASCON FORA DAVID
COMERMA MONTELLS ALBERT
FREIXAS COROMINA LLUÍS
Priority Data: 12382516 20.12.2012 EP
Title: (FR) Circuits de lecture pour réseaux de photomultiplicateur multi-canaux
(EN) Readout circuits for multi-channel photomultiplier arrays
(DE) Ausleseschaltungen für Fotovervielfacherarrays mit mehreren Kanälen
Abstract: front page image
(EN) A readout circuit for multi-channel photomultiplier arrays, such as SiPM arrays, is proposed. It comprises a current mode input stage (15) with distinct gain paths. The current mode input stage (15) comprises a dual loop feedback circuit (40, 50). The first feedback is a high frequency loop feedback (40) and the second is a low frequency feedback circuit (50). The resulting readout circuit is a wideband readout circuit with improved resolution of timing and energy measurements. Furthermore, a dedicated pile-up measurement path (300) allows independent detection of pile-up readings.