Search results for "proton direct ionization"

showing 2 items of 2 documents

Proton Direct Ionization Upsets at Tens of MeV

2023

Experimental monoenergetic proton single-event upset (SEU) cross sections of a 65-nm low core-voltage static random access memory (SRAM) were found to be exceptionally high not only at low energies ($ 3 MeV and extending up to tens of MeV. The SEU cross Section from 20-MeV protons exceeds the 200-MeV proton SEU cross Section by almost a factor of 3. Similarly, monoenergetic neutron cross sections at 14 MeV are about a factor of 3 lower than the 20-MeV proton cross section. Because of Monte Carlo (MC) simulations, it was determined that this strong enhancement is due to the proton direct ionization process as opposed to the elastic and inelastic scattering processes that dominate the SEU res…

Nuclear and High Energy Physicsprotonitprotonsionitionisoiva säteilyscatteringneutronsenergiansiirtoMonte-Carlo simulationsneutronitmuistit (tietotekniikka)proton direct ionizationMonte Carlo -menetelmätNuclear Energy and Engineeringrandom access memorytrajectorydelta-raysNuclear Physics - Experimentsingle event upsetsElectrical and Electronic Engineeringliike-energia
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Proton Direct Ionization in Sub-Micron Technologies: Numerical Method for RPP Parameter Extraction

2022

This work introduces a numerical method to iteratively extract parameters of a rectangular parallelepiped (RPP) sensitive volume (SV) from experimental proton direct ionization SEU data. The method combines two separate numerical models. The first model estimates the average LET values for energetic ions, including protons and also heavy ions, in elemental solid targets. The second model describes the statistical variance in the energy deposition events of projectile-induced primary ionization within a RPP shaped target volume. To benchmark the method, simulated cross-section values based on RPP parameters derived with this method are compared with literature data from four SRAM devices. Th…

Nuclear and High Energy Physicssingle event upset (SEU)protonitnumeeriset menetelmätionisoiva säteilyMonte Carlo (MC) methodstragglingMonte Carlo -menetelmätNuclear Energy and Engineeringsäteilyfysiikkarectangular parallelepiped (RPP)proton direct ionization (PDI)Electrical and Electronic Engineeringlinear energy transfer (LET)IEEE Transactions on Nuclear Science
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