Irradiation test facilities for COTS EEE components

Part 2

TID TESTING

Total ionising dose 

TID – Co60 gamma ray irradiation 

Part 3

SEE TESTING

Single Event Effects

Beam energy and Linear energy transfer 

SEE Testing to estimate cross section vs LET

SEE tests with heavy ions

Cyclotrons 

Cyclotrons

Heavy ion beams

Range of heavy ions

COTS EEE components

High energy beam

Very High energy beam

Ultra High energy beam

Very and Ultra high energy beams

Limitations:

• Few facilities worldwide that provide such beam (requiring heavy ion synchrotron); beam time scarce and expensive

• High penetration linked to relatively low LET values; high LET values only reachable near Bragg peak

• Advantages:
  • Energies closer to actual GCR space environment, therefore tests are potentially more representative (i.e. for cases in which LET is not an appropriate figure of merit)

• • High penetration: testing in air, at constant LET and with packaged components/boards (could be the “only” way of performing ion tests in 3D structures, complex packages, etc.)

Part 4

BOARD LEVEL SEE TESTING WITH PROTONS

Board level SEE testing with protons

Higher range (mm-cm), Lower LET

• Screening for destructive SEEs at board-level (eg the effectiveness of such protection to detect and mitigate against destructive SEEs)
• Identification of soft errors and potential proton induced events (e.g. SEFI) considerably affecting the spacecraft/instrument availability

Summary of test facilities