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A 32 × 32 Doped Silicon-Based Matrix Read by HEMT/SiGe Cryo-Electronics

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Abstract

Since a decade, CEA has started a long-term program to achieve the collective realization of a large (32 × 32 pixels) microcalorimeter camera for X-ray astrophysics. This camera is based on doped silicon sensors with composite tantalum absorber read out by HEMT-/SiGe-based cryo-electronics. The goal of this development is to achieve a spectral resolution of about 2 eV@6 keV in a thermal budget of ~ 1 µW@50 mK for over 4000 pixels. We present the design of our first 32 × 32 sensor matrix. We also present the steps of the development plan of the first measurements onto our matrix.

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Acknowledgements

This program has been funded by the French Space Agency (CNES) and the European Union’s FP7 Program under the CESAR project.

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Authors and Affiliations

  1. CEA de Saclay, University of Paris-Saclay, IRFU DEDIP bat 534, 91190, Gif-sur-Yvette, France

    Xavier-François Navick, Xavier de la Broïse, Francis Lugiez & Alain Le Coguie

  2. CEA de Saclay, AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité, 91191, Gif-sur-Yvette, France

    Jean-Luc Sauvageot

  3. Laboratoire Silicium Nano-Electronique Photonique et Structures, CEA de Grenoble, Minatec INAC/SP2M, Grenoble, France

    Thomas Charvolin & Romain Thibon

Authors
  1. Xavier-François Navick
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  2. Jean-Luc Sauvageot
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  3. Xavier de la Broïse
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  4. Thomas Charvolin
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  5. Romain Thibon
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  6. Francis Lugiez
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  7. Alain Le Coguie
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Correspondence to Xavier-François Navick.

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Navick, XF., Sauvageot, JL., de la Broïse, X. et al. A 32 × 32 Doped Silicon-Based Matrix Read by HEMT/SiGe Cryo-Electronics. J Low Temp Phys 200, 187–191 (2020). https://doi.org/10.1007/s10909-019-02247-x

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  • DOI: https://doi.org/10.1007/s10909-019-02247-x

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