Caliste HD: A new fine pitch Cd(Zn)Te imaging spectrometer from 2 keV up to 1 MeV

Aline Meuris*, Olivier Limousin, Olivier Gevin, Francis Lugiez, Isabelle Le Mer, Frédéric Pinsard, Modeste Donati, Claire Blondel, Alicja Michalowska, Eric Delagnes, Marie Cécile Vassal, Fabrice Soufflet

*Corresponding author for this work

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

Abstract

Caliste HD is the last member of the Caliste family of Cd(Zn)Te micro-cameras for space applications. This hybrid component is made of the assembly of one 16 x 16 pixel Cd(Zn)Te detector and eight analog front-end ASIC named IDeF-X HD equipped with 32 spectroscopic channels. The pixels are 625 μm pitch and are surrounded by a 20 μm wide guard ring. The new generation of ASIC has the advantage of having a power consumption 4 times lower as the previous version (0.2 W for the full device) and offers the possibility to extend the dynamic range from 250 keV to 1 MeV. The technology is fully compliant with operation in space (tolerant to radiation, thermal and mechanical constraints). This paper presents the preliminary spectroscopic results obtained with the samples produced so far. At -16°C the sum spectrum built with all single events of the 1 mm-thick Al Schottky detector show an energy resolution of 0.82 keV FWHM at 14 keV and 0.92 keV FWHM at 60 keV. A good uniformity in gain and in noise is measured over the 256 pixels; the low level-threshold is lower than 2 keV for all pixels.

Original languageEnglish
Title of host publication2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
PublisherInstitute of Electrical and Electronics Engineers
Pages4485-4488
Number of pages4
ISBN (Print)9781467301183
DOIs
Publication statusPublished - 2011
Externally publishedYes
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

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

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Caliste HD: A new fine pitch Cd(Zn)Te imaging spectrometer from 2 keV up to 1 MeV'. Together they form a unique fingerprint.

  • Cite this

    Meuris, A., Limousin, O., Gevin, O., Lugiez, F., Le Mer, I., Pinsard, F., ... Soufflet, F. (2011). Caliste HD: A new fine pitch Cd(Zn)Te imaging spectrometer from 2 keV up to 1 MeV. In 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011 (pp. 4485-4488). [6154695] Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/NSSMIC.2011.6154695