Abstract
Measurements of multiphoton absorption of 16 fern Raman laser radiation in static UF6 (with 99.3% 238UF6) have been performed at room temperature and -35°C. The laser fluence has been varied between 10 and 300 mJ/cm2 for six laser frequencies in the range from 615 to 629 cm-1. Laser frequency and fluence dependence of energy absorbed by UF6 molecules have been investigated. The results indicate that the number of photons absorbed per molecule r;(φ) at a mean fluence φ at several frequencies is in proportion to φα where α ?? 2/3.
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