Isocom – Proton Displacement Damage Measurement in Optocoupler Families

Research was carried out by the Jet Propulsion Laboratory at California Institute of Technology under contract with the National Aeronautic Space Administration (NASA) on Isocom optocoupler families.

JPL used the concept of non-ionizing energy loss (NIEL) to define an equivalent 1-MeV neutron fluence to interpret displacement damage. In other words, radiation environments of protons, neutrons and electrons are regarded as equivalent if they produce the same non-ionizing dose when proper NIEL factors for protons, neutrons and electrons are used to calculate the dose. DD measurements were performed with proton beam at the 1×1011, 5×1011, 1×1012, 2×1012 and 5×1012 equivalent 1-MeV neutron fluences in Silicon.

In order to see the results please download the pdf file.