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