SEU

Definitions

1. Initialism of Social Exclusion Unit.
   UK, abbreviation, alt-of, historical, initialism
2. Initialism of slightly enriched uranium.
   abbreviation, alt-of, countable, initialism, uncountable
3. Initialism of single-event upset (a transient soft error/glitch caused by ionizing radiation impacting a chip, producing a bitflip).
   abbreviation, alt-of, countable, initialism, uncountable

Equivalents

Examples

“The problem centers on the way intense solar radiation can affect⟳ the data used by software that calculates the plane's elevation, says BECA (Belgian Pilot Association). At high altitudes, cosmic rays—high-energy particles from the Sun and distant space—can penetrate aircraft and strike⟳ sensitive parts of computer chips. In some cases, this can cause a bit flip, which is when a stored "0" turns into a "1," or vice versa. In technical terms, this is called a single event upset⟳ (SEU). Investigators found that ELAC B units (Elevator & Aileron Computers) running software version L104 were more likely to be affected. If corrupted data is fed into the flight-control system, the aircraft's elevators could move⟳ unexpectedly. In a worst-case situation, this could push⟳ the aircraft close⟳ to or beyond safe structural limits.”

CEFR level