Аннотация
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.
Язык оригинала | Английский |
---|---|
Страницы (с-по) | 299-304 |
Число страниц | 6 |
Журнал | Technical Physics |
Том | 62 |
Номер выпуска | 2 |
DOI | |
Состояние | Опубликовано - 1 фев 2017 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)