Electron vaporization

EXPLOSIVES DETECTION USING ULTRASENSITIVE ELECTRONIC VAPOR SENSORS FIELD EXPERIENCE... 

Chapter 7, Explosive Detection Using Ultrasensitive Electronic Vapor Sensors Field Experience, applies some of the concepts of the preceding chapters by describing system development work in field conditions. It describes some surprising head-to-head comparisons between dogs and electronic sensors. 

FIGURE 19.3 Schematic diagram of the TEC 6 electronic vaporizer for the administration of desflurane. 

Work function Heat of electron vaporization (and condensation) from a material given by the difference in electrostatic potential energy between its Fermi level and a point just outside its surface. 

A thermionic converter is illnstrated in Fig. 1. It consists of a hot electrode, or emitter, separated from a cooler electrode or collector by an electrical insirlator. The spacing between the emitter and collector is itsually a fraction of a millimeter. Electrons vaporized from the emitter cross the gap, condense on the collector, and are returned to the emitter by way of the electrical load. 

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