Emission of diamonds, leucosapphire, and KU-1 quartz in the range of 200-800 nm excited by electron beams with a pulse duration of 0.5 and 12 ns

Emission of diamonds, leucosapphire, and KU-1 quartz in the range of 200-800 nm excited by electron beams with a pulse duration of 0.5 and 12 ns

Bibliographic Details
Parent link:Journal of Applied Physics
Vol. 125, iss. 24.— 2019.— [244501, 8 p.]
Corporate Authors: Национальный исследовательский Томский политехнический университет Инженерная школа неразрушающего контроля и безопасности Отделение электронной инженерии, Национальный исследовательский Томский политехнический университет Инженерная школа новых производственных технологий Отделение материаловедения
Other Authors: Tarasenko V. F. Victor Fedotovich, Oleshko V. I. Vladimir Ivanovich, Erofeev M. V. Mikhail Vladimirovich, Lipatov E. I. Evgeny Igorevich, Beloplotov D. V. Dmitry Viktorovich, Lomaev M. I. Mikhail Ivanovich, Burachenko A. G. Aleksandr Gennadjevich, Baksht E. Kh. Evgeny Khaimovich
Summary:Title screen
The paper presents the results of Cherenkov radiation (CR) studies in various crystals excited by nanosecond and subnanosecond electron beams with an electron energy of up to 400 and 200 keV, respectively. These studies are motivated by the need to develop and create calibrated sensors of runaway electrons for tokamak-type installations. The spectral and amplitude-time characteristics of the radiation of different specimens of diamonds, leucosapphire, and KU-1 quartz excited by the electron beams were obtained and compared. These crystals were chosen on the basis of their transparency in the ultraviolet region of the spectrum. CR was observed with a spectrometer. An increase in the radiation energy with decreasing wavelength was observed in synthetic diamonds of IIa type, leucosapphire, and KU-1 quartz. The amplitude-time characteristics of the radiation of crystals, including CR, were measured with a photodiode having a pulse response time of up to ≈80 ps. In chemical vapor deposited high purity diamonds excited by both nanosecond and subnanosecond beams, an exciton radiation with a maximum at 235 nm was observed. Results show that leucosapphire and quartz can be used to create detectors of electrons with energies above 200 keV.
Режим доступа: по договору с организацией-держателем ресурса
Published: 2019
Subjects:
электронный ресурс
труды учёных ТПУ
черенковское излучение
электронные пучки
кристаллы
Online Access:https://doi.org/10.1063/1.5094956
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=660691

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