Abstract In this paper, the electron emission from a nanostructured tungsten surface was investigated. A method for measuring an extremely low current (10 ?12 – 10 ?14 A) has been tested. It made possible to reduce effect of electric field on sample and minimize probability spontaneous breakdowns. For detailed study fuzz, point anode (diameter 90 ?m) used. Field enhancement factor (? = 2000 300...

Abstract Thermal emission spectra can provide key insights into the composition and thermophysical properties of regolith on Moon other airless bodies. However, under lunar surface environmental conditions, uppermost millimeters (from which thermal originates) cannot be characterized by a single temperature, leading to changes in spectral characteristics that should accounted for interpreting m...

The electron field emission properties of tetrahedral amorphous carbon thin films deposited using a filtered cathodic vacuum arc system have improved as a result of surface treatment with H, O, and Ar ions. The limiting factor of the emission process does not appear to be only the front surface of the films. The improvement in the emission after ion beam treatment appears to be independent of t...