Pulsed cathodoluminescence of diamond, calcite, spodumene, and fluorite under the action of subnanosecond e beam

Pulsed cathodoluminescence of diamond, calcite, spodumene, and fluorite under the action of subnanosecond e beam- Nov 2010

E. Kh. Baksht, A. G. Burachenko and V. F. Tarasenko- Technical Physics Letters
Amplitude and temporal characteristics of pulsed cathodoluminescence (PCL) of diamond (natural and synthetic), calcite, spodumene, and fluorite have been studied at a temporal resolution of 0.3 ns. The PCL was generated by electron beam pulses with a full width at half maximum (FWHM) of 0.1, 0.25, and 0.65 ns. The PCL spectra have been measured for the emission induced by 0.1- and 0.25-ns pulses at a beam current density of 90 A/cm2 … It was demonstrated that the PCL can be generated by supershort avalanche electron beams (SAEBs) generated in gas diodes filled with air at atmospheric pressure. Previously, we have used a commercial small size BLACK-Comet spectrograph (StellarNet Inc.)