Frontiers in Physics (Nov 2020)

Fabrication and Characterisation of 3D Diamond Pixel Detectors With Timing Capabilities

  • Lucio Anderlini,
  • Marco Bellini,
  • Andrea Bizzeti,
  • Andrea Bizzeti,
  • Alessandro Cardini,
  • Roberto Ciaranfi,
  • Chiara Corsi,
  • Michela Garau,
  • Michela Garau,
  • Adriano Lai,
  • Stefano Lagomarsino,
  • Andrea Lampis,
  • Andrea Lampis,
  • Angelo Loi,
  • Chiara Lucarelli,
  • Chiara Lucarelli,
  • Saverio Mariani,
  • Saverio Mariani,
  • Nicola Minafra,
  • Arianna Morozzi,
  • Roberto Mulargia,
  • Roberto Mulargia,
  • Giovanni Passaleva,
  • Daniele Passeri,
  • Daniele Passeri,
  • Silvio Sciortino,
  • Silvio Sciortino,
  • Silvio Sciortino,
  • Stefania Vecchi,
  • Michele Veltri,
  • Michele Veltri

DOI
https://doi.org/10.3389/fphy.2020.589844
Journal volume & issue
Vol. 8

Abstract

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Diamond sensors provide a promising radiation hard solution to the challenges posed by the future experiments at hadron machines. A 3D geometry with thin columnar resistive electrodes orthogonal to the diamond surface, obtained by laser nanofabrication, is expected to provide significantly better time resolution with respect to the extensively studied planar diamond sensors. We report on the development, production, and characterisation of innovative 3D diamond sensors achieving 30% improvement in both space and time resolution with respect to sensors from the previous generation. This is the first complete characterisation of the time resolution of 3D diamond sensors and combines results from tests with laser, β rays and high energy particle beams. Plans and strategies for further improvement in the fabrication technology and readout systems are also discussed.

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