Measurement of secondary electron yield of wall materials using Auger Electron Spectrometer.

Electron Paramagnetic Resonance (EPR) Spectrometer for the measurement of the number of spins in investigated materials

Secondary Electron Yield of Glassy Carbon Dust Grains

Secondary electron emission from a micron spherical dust grain has been investigated locally by a narrow (less than 30 nm) electron beam at energies ranging from 0.6 to 10 keV using the secondary electron microscopy. For investigations, glassy carbon grains were chosen for their conductivity and smooth surface as well as carbon abundance in space and laboratory dusty plasmas. The energetic depe...

Influence of the Electric Field on Secondary Electron Emission Yield

We present results of the investigation of secondary electron emission from spherical amorphous carbon grains of 3 to 6 micrometers in diameter affected by a high surface field. In our experiment, we have applied a technique based on levitation of a single charged grain in the quadrupole trap. This grain was charged by an electron beam with an energy tunable up to 10 keV. During this process, t...

Calculation of Secondary Electron Emission Yield From MgO Surface

Secondary electron emission yield values for rare-gas particles (He, Ne, Ar, Kr, and Xe ions of atoms and molecules, metastable atoms, and excimers) of MgO deposited under optimum conditions for the highest values were calculated assuming the Auger transitions between the valence band, and the (oxygen ion vacancy + two electrons) and + (oxygen ion vacancy + one electron) centers in the MgO surf...

Electron-time Of-flight Spectrometer

A velocity selector is described which is designed for measurement of the total collision cross section of electrons in the energy region below one volt. The system determines the distributions of times of flight of single electrons over a measured path at selected pressures of a specimen gas. The electrons are generated by repetitive illumination of a photo-emitter by a spark gap, pass over a ...