SLVK173 July 2024 TPS7H4011-SP
The heavy-ion species used for the SEE 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. At the fluxes used, ion beams had good flux stability and high irradiation uniformity over a 1in diameter circular cross-sectional area for the in-air station. Uniformity is achieved by magnetic defocusing. The flux of the beam is regulated over a broad range spanning several orders of magnitude. For these studies, ion flux of 1.02 × 104 to 1.12 × 105 ions/cm2·s were used to provide heavy-ion fluences of 1.00 × 106 to 1.00 × 107 ions/cm2.
For the experiments conducted on this report, there was one ion used 165Ho. 165Ho was used to obtain LETEFF of 75MeV × cm2/ mg. The total kinetic energies for the ion was:
Figure 4-1 shows the TPS7H4011EVM-CVAL used for data collection at the TAMU facility. Although not visible in this photo, the beam port has a 1mil Aramica window to allow in-air testing while maintaining the vacuum within the accelerator with only minor ion energy loss. The in-air gap between the device and the ion beam port window was maintained at 40mm for all runs.