Pressure-induced ultraviolet absorption in rare gases: Absorption coefficients for mixtures of Xe and Ar at pressures up to 40 atm in the vicinity of 147 nm

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Abstract

Absorption coefficient κυ for mixtures of Xe (0.2–20 kg/cm2) and Ar (5–40 kg/cm2) has been measured in the range 0.1 cm-1 < κυ < 40 cm-1. Exponential and power dependencies of κυ on wavenumber were observed and are discussed. The κυ-dependencies on the pressure of mixture components are explained by photon absorption at multiparticle collisions of Xe and Ar atoms.

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