Journal of Radio Electronics. eISSN 1684-1719. 2025. ¹11
Full text in Russian (pdf)
DOI: https://doi.org/10.30898/1684-1719.2025.11.15
17th International Conference
Gas Discharge Plasmas and Their Applications
Ekaterinburg, Russia, 8-12 September 2025
UNDER THE PULSED ELECTRON BEAM IMPACT
A.V. Spirina 1, O.N. Tchaikovskaya 1,2, E.N. Bocharnikova 1,2,
V.I. Solomonov 1, N.V. Udina 3
1IEP UB RAS 620016, 106, Amundsen str., Ekaterinburg
2Tomsk State University 634050, 36, Lenin Ave., Tomsk
3IPC SB RAS 634055, 4, Akademichesky Ave., Tomsk
The paper was received October 2, 2025.
Abstract. The absorption spectra and pulsed cathodoluminescence of solid phenol were recorded during irradiation with a pulsed electron beam of 2 ns duration with an average electron energy of 170 keV. The maximum number of exposure pulses was 4000 at a repetition rate of 1 Hz and a maximum absorbed dose per pulse of 1.38 kGy. Four bands were distinguished in the luminescence spectrum. A strong band at 375 nm is associated with the T1®S0 transition, at the long-wave edge of which less intense bands are observed at 395 and 475 nm and are associated with the transition from T1 to vibrational levels of the S0 state. The long-wave band at 740 nm is formed by the triplet-triplet (Ti®T1) transition. The behavior of the intensities of all luminescence bands depending on the number of irradiation pulses has a specific character. Initially, the band intensity increases until it reaches a maximum, but after that, an exponential decline occurs due to the transformation of phenol. This process begins with the cleavage of the OH bond, resulting in the formation of a phenoxyl radical, the oxidation of which leads to the formation of benzoquinones, which interact with phenol to form complex compounds.
Key words: electron beam, solid state phenol, pulsed cathodoluminescence.
Financing: the results were obtained within the framework of the implementation of the state assignment of the Ministry of Education and Science of Russia, the project No. 124022200004-5
Corresponding author: Spirina Alfiya Vilikovna, alfiya_r@list.ru
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For citation:
Spirina A.V., Tchaikovskaya O.N., Bocharnikova E.N., Solomonov V.I., Udina N.V. Solid phenol transformation under the pulsed electron beam impact // Journal of Radio Electronics. – 2025. – ¹. 11. https://doi.org/10.30898/1684-1719.2025.11.15 (In Russian)