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Electronics reliability assessment of future power fusion machines: neutron interaction analysis in bulk silicon

Abstract : The interactions of high energy neutrons produced in D-D and D-T nuclear fusion reactions with natural silicon have been investigated through direct calculation using nuclear cross section libraries, MCNP6 and Geant4 numerical simulations. From the systematic simulation and particle tracking of 5x10^8 neutrons incident on a 1 cm^2x20 µm bulk target, we provide a detailed analysis of all interactions (elastic, inelastic, nonelastic) per type of reacting silicon isotope and an exhaustive classification of all neutron-induced secondary products as a function of their type, energy, linear energy transfer and range in silicon. Implications for reliability of the electronics in future power fusion machines are discussed based on these first evaluations.
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https://hal-amu.archives-ouvertes.fr/hal-03358441
Contributor : Daniela Munteanu Connect in order to contact the contributor
Submitted on : Wednesday, September 29, 2021 - 1:35:08 PM
Last modification on : Friday, April 1, 2022 - 3:54:07 AM
Long-term archiving on: : Thursday, December 30, 2021 - 7:09:50 PM

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Jean-Luc Autran, Daniela Munteanu. Electronics reliability assessment of future power fusion machines: neutron interaction analysis in bulk silicon. Microelectronics Reliability, Elsevier, 2021, ⟨10.1016/j.microrel.2021.114223⟩. ⟨hal-03358441⟩

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