Abstract
The results of studies of the physical nature of emissions produced in polymethyl methacrylate excited by electron beams of a subnanosecond or a nanosecond duration are presented. The spatial, amplitude, and spectral-kinetic properties of emissions have been examined under an electron beam energy density varying from 10–4 to 4 × 10–1 J/cm2. It has been found that cathodoluminescence is the primary type of emission under low energy densities of the electron beam. When the energy density of a nanosecond electron beam and/or the number of pulses of excitation by a subnanosecond electron beam were increased, an electrical breakdown of polymethyl methacrylate occurred in the irradiated region. This process was accompanied by a burst of emission of dense, low-temperature plasma.
Original language | English |
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Pages (from-to) | 299-304 |
Number of pages | 6 |
Journal | Technical Physics |
Volume | 62 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1 Feb 2017 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)