Abstract
Total collision cross sections have been measured for neon atoms with energies between 500 and 2100 ev, scattered in room temperature argon, and for argon atoms with the same energies scattered in room-temperature neon. The experimental results have been analyzed to obtain the following potential energy of interaction between a neon atom and an argon atom: V(r)=1.01×10−9/r9.18 erg,for r between 1.91 A and 2.44 A. This potential is in agreement with one obtained by a simple combination of the potential between two neon atoms with that between two argon atoms. It is also consistent with the potential, valid at larger separation distances, which has been derived from measurements of gaseous compressibility, viscosity, and crystal properties.
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