SBOK052 May   2024 OPA4H014-SEP

 

  1.   1
  2.   OPA4H014-SEP Single-Event Latch-Up (SEL) Radiation Report
  3.   Trademarks
  4. 1Overview
  5. 2SEE Mechanisms
  6. 3Irradiation Facilities and Telemetry
  7. 4Test Device and Test Board Information
    1. 4.1 Qualification Devices and Test Board
    2. 4.2 Characterization Devices and Test Boards
  8. 5Results
    1. 5.1 SEL Qualification Results
    2. 5.2 SET Characterization Results: TAMU K500 Cyclotron
    3. 5.3 SEE Characterization Results: MSU FRIB Linac
    4. 5.4 Analysis
    5. 5.5 Weibull Fit
  9. 6Summary
  10.   A TAMU Results Appendix
  11.   B MSU Results Appendix
  12.   C Confidence Interval Calculations
  13.   D References

3 Irradiation Facilities and Telemetry

The heavy ion species used for the SEL qualification studies, and for additional SEL and SET characterization, were provided and delivered by the TAMU Cyclotron Radiation Effects Facility(3) using a superconducting cyclotron and advanced electron cyclotron resonance (ECR) ion source. Ion beams are delivered with high uniformity over a 1-inch diameter circular cross sectional area for the in-air station. Uniformity is achieved by magnetic defocusing. The intensity of the beam is regulated over a broad range spanning several orders of magnitude. For the bulk of these studies, nominal ion fluxes of 1 × 105 ions / s-cm2 or 5 × 105 ions / s-cm2 were used to provide heavy ion fluences to 107 ions / cm2.

For correlation SEL and SET testing, heavy ion species were provided and delivered by the MSU Facility for Rare Isotope Beams(4) using a linear particle accelerator ion source. Ion beams were delivered with high uniformity over a 17mm × 18mm area for the in-air station. A current-based measurement is performed on the collimating slits, which intercept 90-95% of the total beam, and this measurement is cross-calibrated against Faraday cup readings. These measurements are real-time continuous and establish dosimetry and integrated fluence. In-vacuum and in-air scintillating viewers are used for measurement of the beam size and distribution. An ion flux of 105 ions / s-cm2 was used to provide heavy ion fluences to 107 ions / cm2.