Title :
Proton-induced transients in optocouplers: in-flight anomalies, ground irradiation test, mitigation and implications
Author :
LaBel, Kenneth A. ; Marshall, Paul W. ; Marshall, Cheryl J. ; Ordine, Mary D. ; Carts, Martin ; Lum, Gary ; Kim, Hak S. ; Seidleck, Christina M. ; Powell, Timothy ; Abbott, Randy ; Barth, Janet ; Stassinopoulos, E.G.
Author_Institution :
NASA Goddard Space Flight Center, Greenbelt, MD, USA
fDate :
12/1/1997 12:00:00 AM
Abstract :
We present data on recent optocoupler in-flight anomalies and the subsequent ground test irradiation performed. Discussions of the single event mechanisms involved, transient filtering analysis, and design implications are included. Proton-induced transients were observed on higher speed optocouplers with a unique dependence on the incidence particle angle. The results indicate that both direct ionization and nuclear reaction-related mechanisms are responsible for the single events observed
Keywords :
aerospace testing; opto-isolators; proton effects; space vehicle electronics; transient analysis; transients; direct ionization; ground irradiation test; in-flight anomalies; incidence particle angle; nuclear reaction-related mechanisms; optocouplers; proton-induced transients; single event mechanisms; transient filtering analysis; Aerospace engineering; Circuits; Filtering; Instruments; Optical devices; Optical transmitters; Photodiodes; Phototransistors; Space technology; Testing;
Journal_Title :
Nuclear Science, IEEE Transactions on
