Abstract
An analysis of thermal desorption spectra obtained with non-linear healing of the sample is proposed. The paper is divided in two parts. Firstly, the calculation is performed for any heating function T( t) and, secondly, the results are applied to an exponential heating: T( t) = T a−( T a− T 0) exp( −α t). As in the linear case, in the first order of desorption, the temperature T p of the peak in the desorption rate is found to be independent of T 0 and of the initial coverage n 0, this second property being true for any continuous temperature change; while in the second order, T p depends on both T 0, and T 0.
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