Abstract
A technique is developed for measuring the thermal desorption of one or more gases using the time-of-flight mass spectrometer. With this method the adsorbed population, gas-solid bond energy, and preexponential kinetic factor can be determined for each adsorbed gas. The thermal desorption of nitric oxide from plutonium dioxide was measured over the temperature range 100°–900°C and typical spectra are presented. The activation energy of desorption was found to be 19.4 kcal/mole. The probable mechanism for adsorption is also discussed.
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