Abstract
A pressure dependent quenching of the VUV broad-band fluorescence (bandwidth 15 nm centred at λ 173 nm) from high pressure xenon has been measured for pressures from 25 to 215 p.s.i. The experimental results can be explained by collisional de-excitation of the excited Xe 2 molecules by Xe atoms. A quenching cross section of ≈ 10 -17 cm 2, and molecular radiative lifetime of 16 nsec have been derived. The implications for the design of VUV molecular xenon lasers are discussed.
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