Open AccessИзлучение Вавилова-Черенкова и импульсная катодолюминесценция в полиметилметакрилате при возбуждении субнаносекундным пучком электронов
Author(s) -
В.Ф. Тарасенко,
Е.Х. Бакшт,
М.В. Ерофеев
Publication year - 2021
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2021.06.50749.18601
Subject(s) - cherenkov radiation , cathodoluminescence , radiation , radiant intensity , materials science , electron , optics , atomic physics , physics , intensity (physics) , excitation , ultraviolet , luminescence , nuclear physics , quantum mechanics , detector
The spectral and amplitude-time characteristics of the emission of polymethyl methacrylate upon excitation by electron beams with electron energies up to 300 and 450 keV are studied. Vavilov-Cherenkov radiation and cathodoluminescence pulses were recorded with a subnanosecond time resolution. It is shown that the intensity of pulsed cathodoluminescence radiation in the visible and near ultraviolet spectral regions at electron energies of hundreds of keV exceeds the intensity of Vavilov-Cherenkov radiation.