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Do negative ions kill viruses? 

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Negative ions provide an excellent tool for materials processing applications.
The provision of the magnetic filters is effective to enrich negative ions.
It is shown that diffusion, electric field, power input, plasma stability and plasma boundary layer are strongly affected by the presence of negative ions.
Alternatively, negative ions can be efficiently generated in the plasma sheath, due to interactions of high-energy positive ions with neutrals or with the surface.
Negative ions are well suited for such studies since they exhibit an enhanced sensitivity to correlation due to the efficient screening of the nucleus by the atomic electrons.
The results give more knowledge of the long-lived negative ions formation.
Thus, it has been suggested that highly ionized and dissociated plasmas are suitable for the surface production of negative ions.

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