3 Irradiation Facility and Setup

The heavy ion species used for the SEL studies on this product were provided and delivered by the TAMU Cyclotron Radiation Effects Facility using a superconducting cyclotron and an advanced electron cyclotron resonance (ECR) ion source. The ion species for SET testing were provided by the MSU Facility for Rare Isotope Beams using a heavy-ion particle accelerator.

Ion beams are delivered with high uniformity over a 1-in diameter circular cross-sectional area for the in-air station. Uniformity is achieved by means of magnetic defocusing. The intensity of the beam is regulated over a broad range spanning several orders of magnitude. For the bulk of these studies, ion fluxes between 10⁴ and 10⁵ ions/s-cm² were used to provide heavy-ion fluences between 10⁶ and 10⁷ ions/cm². For these experiments Thulium (Tr), Xenon (Xe), and Argon (Ar) ions were used. The air space between the device and the ion beam port window was maintained at 70 mm for all runs. For more information on the effective LET range and depth for the experiments, see Table 3-1.