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Displacement damage

Proton Displacement damage.

Exemple of parametric degradation curve UROPE measurements and OBIT data processing

Displacement damage is essentially induced by protons. An incident proton will create defects by colliding an atom of the crystal (recoil atom) which provokes damage of the electrical characteristics of certain components and particularly of opto-electronic components and CCD. This test consists in measuring parameter drifts for different proton fluences.

  • Proton Beam Characteristics
    • Energy : 10 - 200 MeV or specific spectrum.
    • Fluency : 107 to 1012 protons/cm2
    • Beam area : 20 cm2
  • Irradiation facilities
    • CPO, France
    • PSI, Switzerland
    • UCL, Belgium
  • Degradation Analysis
    • Prediction of the NIEL in orbit (OMERE software).
    • Equivalent flux with NIEL curve.
  • Optical Test Bench - UROPE
    • Precise Parametric measurements 1pA-5A, 1mV-50A pulsed.
    • Light emission characterization.
    • Temperature controlled system 0°-125°C.
    • OBIT, data processing software for parametric drift computation.
    • Light and Portable.

TRAD has developed the Optical Test Bench with specialists from the CNES for their study of proton displacement damage on opto-electronic devices.