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The TRISTAN 166-pixel detector: Preliminary results with a planar setup

  • Marco Carminati
  • , Matteo Gugiatti
  • , Daniel Siegmann
  • , Korbinian Urban
  • , Pietro King
  • , Frank Edzards
  • , Peter Lechner
  • , Susanne Mertens
  • , Carlo Fiorini
  • Politecnico di Milano
  • INFN Sezione di Milano
  • Max-Planck-Institut für Physik
  • Technical University of Munich
  • Max-Planck-Institut für Physik

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

We present the first experimental results achieved with a monolithic array of 166 Silicon Drift Detectors (SDD). This detector was developed for the TRISTAN experiment, targeting the search for a sterile neutrino in the keV mass range by means of accurate Beta spectroscopy of the Tritium decay. We briefly report on the design and characterization with X-rays of the full signal chain: from the SDD array, operated in a planar configuration with all the components of the final system, to the acquisition platform simultaneously acquiring all 166 channels. The average energy resolution is better than 250eV FWHM at 5.9keV at a temperature of 0 °C, a 6 μs shaping time, and an average count rate of 1kcps per channel, 100 times smaller than the final experiment one.

Keywords

  • Beta spectroscopy
  • Silicon Drift Detectors
  • X-ray

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