Multi-dimensional optimization of charge preamplifier in 0.18 μm CMOS technology for low Power CdTe spectro-imaging system

Alicja Michalowska*, Olivier Gevin, Olivier Limousin, Xavier Coppolani

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Presented work is dedicated to research on pixelated CdTe spectro-imaging systems for space applications. The current study is focused on charge amplifier optimization for low dark current (less than 5 pA) and low input capacitance (0.3 to 1 pF) detector front-end. High spatial resolution and minimized power consumption are the most important parameters. Previous studies considered pixel size of approximately 600 μm. With technological advance of packaging systems and CdTe development, the pixel size of the detector and stray capacitance between pixel and electronics can be reduced. Consequently the dark current and the input capacitance will decrease. Our goal is to optimize the electronics readout for the small pixel detector system to approach as close as possible to the physical limits of the CdTe detector spectral resolution. In this article studies on 0.18 μm CMOS technology for a very low power conversion chain are presented.

Original languageEnglish
Title of host publication2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
Pages653-659
Number of pages7
DOIs
Publication statusPublished - 2012
Event2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011 - Valencia, Spain
Duration: 23 Oct 201129 Oct 2011

Conference

Conference2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
CountrySpain
CityValencia
Period23/10/1129/10/11

Keywords

  • Integrated circuits
  • low noise
  • X-ray
  • detection
  • front-end

ASJC Scopus subject areas

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

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    Michalowska, A., Gevin, O., Limousin, O., & Coppolani, X. (2012). Multi-dimensional optimization of charge preamplifier in 0.18 μm CMOS technology for low Power CdTe spectro-imaging system. In 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011 (pp. 653-659). [6153985] https://doi.org/10.1109/NSSMIC.2011.6153985