SLVK263 May 2026 TPS7H5030-SP , TPS7H5031-SP
The heavy-ion species used for the SEE studies on this product were provided and delivered by Michigan State University (MSU) Facility for Rare Isotope Beams (FRIB) using a K500 superconducting cyclotron (KSEE) and an advanced electron cyclotron resonance (ECR) ion source. At the fluxes used, ion beams had good flux stability and high irradiation uniformity as the beam is collimated to a maximum of 40mm × 40mm square cross-sectional area for the in-air and vacuum scintillators. Uniformity is achieved by scattering on a Cu foil and then performing magnetic defocusing. The flux of the beam is regulated over a broad range spanning several orders of magnitude. For these studies, ion flux of approximately 105ions/cm2/s was used to provide heavy-ion fluences of 1.00 × 107ions/cm2. The KSEE facility uses a beam port that has a 3-mil polyethylene naphthalate (PEN) window to allow in-air testing while maintaining the vacuum within the particle accelerator. The in-air gap between the device and the ion beam port window was maintained at 60mm for all runs.
For the experiments conducted on this report, the 169Tm ion was used to obtain LETEFF of 75MeV×cm2/mg. The total kinetic energies for the ion was:
Figure 4-1 shows the open-loop custom SEE evaluation module in front of the beam line at the KSEE facility.
Figure 4-1 TPS7H503x-SP EVM in
Front of the Heavy-Ion Beam Exit Port at the MSU KSEE Cyclotron