Photoelectrostimulated passivation of spectrometric Cd1–xZnxTe-detectors

A new physical method of Cd1–xZnxTe-detector’s treatment – photoelectrostimulated passivation is developed. In its frames, oxidation of the sample followed by the formation of high-resistance oxide layer on the surface occurs at simultaneous action of both intense light radiation and electric field. It is shown that the method is easily realized and provides the obtaining of thick high-resistance oxide films, that essentially increases the surface electrical resistance of Cd1–xZnxTe-samples and diminishes leakage currents in them

Reactor performance with periodic flow reversal for a multistep complex reaction

Analysis of a triangular network reaction scheme taking place in a packed-bed reactor is carried out under conditions of periodic flow reversal. The analysis indicates that better conversions and selectivities for lower gas inlet temperatures are possible compared to the conventional unidirectional flow operation. The effects on reactor performance as a function of cycling time for periodic flow reversal show the existence of an optimum value