| Autor: |
Bílek, Petr, Tungli, Ján, Šimek, Milan, Bonaventura, Zdeněk |
| Rok vydání: |
2021 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| Popis: |
The process of electron multiplication through the bouncing-like accelerated motion of electrons inside nanovoids formed owing to external electric fields in bulk liquid water is investigated using Monte Carlo simulations in Geant4-DNA. Our results show that the initial charge developed at the metal/liquid interface can be multiplied and expanded along the direction of the external electric field on a picosecond timescale, owing to collision-free interiors of the nanoruptures. Characteristic features of two different electron multiplication mechanisms are revealed and characterized. We find that electrons can be accelerated inside cylindrical nanoruptures while bouncing off the void/water interface. Simulations predict geometric conditions leading to charge multiplication along the void, rather than electron capture or thermalization in bulk liquid. Our results are consistent with the recent verification of the causal relation between electrostriction-induced perturbations in bulk liquid, and the subsequent formation of luminous filaments evidencing the presence of energetic electrons. |
| Databáze: |
arXiv |
| Externí odkaz: |
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