Soft-error tolerance of an optically reconfigurable gate array VLSI

Takumi Fujimori, Minoru Watanabe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The damaged reactors and melted nuclear fuel of the Fukushima Daiichi nuclear power plant present an extremely intense radiation environment. Decommissioning project members are estimating that the maximum radiation intensity around the melted reactors and melted nuclear fuel is 1000 Sv/h. Since humans cannot approach the region, robots must take the lead in decommissioning operations. Such robots need semiconductor devices for operations. However, such devices are exceptionally vulnerable to radiation. Therefore, a radiation-hardened optically reconfigurable gate array (ORGA) has under development Although the ORGA is also constructed using the same radiation-vulnerable semiconductor technology as that used in currently available radiation-hardened devices, ORGAs use a holographic memory technology to increase the radiation tolerance of semiconductor device components. The soft-error tolerance has been confirmed using an americium alpha particle radiation source (Am-241) as 181 times higher than Artix-7 FPGAs using a high-speed optical scrubbing operation.

Original languageEnglish
Title of host publication26th International Conference on Systems Engineering, ICSEng 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538678343
DOIs
Publication statusPublished - Feb 8 2019
Externally publishedYes
Event26th International Conference on Systems Engineering, ICSEng 2018 - Sydney, Australia
Duration: Dec 18 2018Dec 20 2018

Publication series

Name26th International Conference on Systems Engineering, ICSEng 2018 - Proceedings

Conference

Conference26th International Conference on Systems Engineering, ICSEng 2018
Country/TerritoryAustralia
CitySydney
Period12/18/1812/20/18

Keywords

  • Field programmable gate arrays
  • Optically reconfigurable gate arrays
  • Soft-error tolerance
  • Space embedded systems

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture

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