Abstract
AbstractPrecise thermal control of Knudsen‐type evaporation cells in MBE requires basic knowledge on the thermal behaviour of the cell on any alteration of the heating power. This paper deals with the cell's response in temperature, when the cell is subject to a jumplike change in heating power. Particular care is devoted to deviations from pure exponential behaviour, if the temperature transition function between two equilibrium states is concerned. It is shown, that the jump response function for a finite increase in heating power is equivalent to that of an infinite small one, whereby an effective temperature — amounting to 70% of the temperature jump height — has to be introduced.
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