Investigation on pixellated CZT detectors coupled with a low power readout ASIC

Gaetano Gerardi, Francesco Russo, Leonardo Abbene, Antonio Carlino, Agnetta, Del Sordo, Biondo, Mangano, Ezio Caroli, Ventura, Stephen, Russo, Bertuccio

Risultato della ricerca: Paper

6 Citazioni (Scopus)

Abstract

n this work, we investigated on the spectroscopic performances of two pixellated CZT detectors coupled with a custom low noise and low power readout ASIC. The detectors (10 × 10 × 1 mm3 and 10 × 10 × 2 mm3 single crystals) consist of an array of 256 pixels with a geometric pitch of 0.5 mm. The ASIC, fabricated in 0.8 μm BiCMOS technology, is equipped with eight independent channels (preamplifier and shaper) characterized by a dynamic range from 10 keV to 100 keV, low power consumption (0.5 mW/channel) and low noise (150-500 electrons r.m.s.). The spectroscopic results point out the good energy resolution of both detectors at room temperature (5.8 % FWHM at 59.5 keV for the 1 mm thick detector; 5.5 % FWHM at 59.5 keV for the 2 mm thick detector) and low tailing, confirming the single charge carrier sensing properties of the CZT detectors equipped with a pixellated anode layout. Temperature measurements show optimum performances of the system (detector and electronics) at T = 10 0C and performance degradations at lower temperatures. The detectors and the ASIC, designed by our collaboration, represent two small focal plane detector prototypes for hard X-ray telescopes operating in the 10-100 keV energy range.
Lingua originaleEnglish
Stato di pubblicazionePublished - 2008

Fingerprint

application specific integrated circuits
readout
Temperature
Noise
detectors
Telescopes
Electrodes
X-Rays
Electrons
Technology
low noise
channel noise
shapers
preamplifiers
layouts
dynamic range
temperature measurement
charge carriers
anodes
pixels

All Science Journal Classification (ASJC) codes

  • Radiation
  • Radiology Nuclear Medicine and imaging
  • Nuclear and High Energy Physics

Cita questo

Investigation on pixellated CZT detectors coupled with a low power readout ASIC. / Gerardi, Gaetano; Russo, Francesco; Abbene, Leonardo; Carlino, Antonio; Agnetta; Del Sordo; Biondo; Mangano; Caroli, Ezio; Ventura; Stephen; Russo; Bertuccio.

2008.

Risultato della ricerca: Paper

Gerardi, G, Russo, F, Abbene, L, Carlino, A, Agnetta, Del Sordo, Biondo, Mangano, Caroli, E, Ventura, Stephen, Russo & Bertuccio 2008, 'Investigation on pixellated CZT detectors coupled with a low power readout ASIC'.
@conference{5fc120b9c5704b689237d8997f0a1bb5,
title = "Investigation on pixellated CZT detectors coupled with a low power readout ASIC",
abstract = "n this work, we investigated on the spectroscopic performances of two pixellated CZT detectors coupled with a custom low noise and low power readout ASIC. The detectors (10 × 10 × 1 mm3 and 10 × 10 × 2 mm3 single crystals) consist of an array of 256 pixels with a geometric pitch of 0.5 mm. The ASIC, fabricated in 0.8 μm BiCMOS technology, is equipped with eight independent channels (preamplifier and shaper) characterized by a dynamic range from 10 keV to 100 keV, low power consumption (0.5 mW/channel) and low noise (150-500 electrons r.m.s.). The spectroscopic results point out the good energy resolution of both detectors at room temperature (5.8 {\%} FWHM at 59.5 keV for the 1 mm thick detector; 5.5 {\%} FWHM at 59.5 keV for the 2 mm thick detector) and low tailing, confirming the single charge carrier sensing properties of the CZT detectors equipped with a pixellated anode layout. Temperature measurements show optimum performances of the system (detector and electronics) at T = 10 0C and performance degradations at lower temperatures. The detectors and the ASIC, designed by our collaboration, represent two small focal plane detector prototypes for hard X-ray telescopes operating in the 10-100 keV energy range.",
keywords = "CZT detectors",
author = "Gaetano Gerardi and Francesco Russo and Leonardo Abbene and Antonio Carlino and Agnetta and {Del Sordo} and Biondo and Mangano and Ezio Caroli and Ventura and Stephen and Russo and Bertuccio",
year = "2008",
language = "English",

}

TY - CONF

T1 - Investigation on pixellated CZT detectors coupled with a low power readout ASIC

AU - Gerardi, Gaetano

AU - Russo, Francesco

AU - Abbene, Leonardo

AU - Carlino, Antonio

AU - Agnetta, null

AU - Del Sordo, null

AU - Biondo, null

AU - Mangano, null

AU - Caroli, Ezio

AU - Ventura, null

AU - Stephen, null

AU - Russo, null

AU - Bertuccio, null

PY - 2008

Y1 - 2008

N2 - n this work, we investigated on the spectroscopic performances of two pixellated CZT detectors coupled with a custom low noise and low power readout ASIC. The detectors (10 × 10 × 1 mm3 and 10 × 10 × 2 mm3 single crystals) consist of an array of 256 pixels with a geometric pitch of 0.5 mm. The ASIC, fabricated in 0.8 μm BiCMOS technology, is equipped with eight independent channels (preamplifier and shaper) characterized by a dynamic range from 10 keV to 100 keV, low power consumption (0.5 mW/channel) and low noise (150-500 electrons r.m.s.). The spectroscopic results point out the good energy resolution of both detectors at room temperature (5.8 % FWHM at 59.5 keV for the 1 mm thick detector; 5.5 % FWHM at 59.5 keV for the 2 mm thick detector) and low tailing, confirming the single charge carrier sensing properties of the CZT detectors equipped with a pixellated anode layout. Temperature measurements show optimum performances of the system (detector and electronics) at T = 10 0C and performance degradations at lower temperatures. The detectors and the ASIC, designed by our collaboration, represent two small focal plane detector prototypes for hard X-ray telescopes operating in the 10-100 keV energy range.

AB - n this work, we investigated on the spectroscopic performances of two pixellated CZT detectors coupled with a custom low noise and low power readout ASIC. The detectors (10 × 10 × 1 mm3 and 10 × 10 × 2 mm3 single crystals) consist of an array of 256 pixels with a geometric pitch of 0.5 mm. The ASIC, fabricated in 0.8 μm BiCMOS technology, is equipped with eight independent channels (preamplifier and shaper) characterized by a dynamic range from 10 keV to 100 keV, low power consumption (0.5 mW/channel) and low noise (150-500 electrons r.m.s.). The spectroscopic results point out the good energy resolution of both detectors at room temperature (5.8 % FWHM at 59.5 keV for the 1 mm thick detector; 5.5 % FWHM at 59.5 keV for the 2 mm thick detector) and low tailing, confirming the single charge carrier sensing properties of the CZT detectors equipped with a pixellated anode layout. Temperature measurements show optimum performances of the system (detector and electronics) at T = 10 0C and performance degradations at lower temperatures. The detectors and the ASIC, designed by our collaboration, represent two small focal plane detector prototypes for hard X-ray telescopes operating in the 10-100 keV energy range.

KW - CZT detectors

UR - http://hdl.handle.net/10447/34058

M3 - Paper

ER -