Investigation of processes of interaction relativistic electrons with the solutions of organic dyes

• Main Authors: Buki, A.Yu., Gokov, S.P., Kazarinov, Yu.G., Kalenik, S.A., Kasilov, V.I., Kochetov, S.S., Makhnenko, P.L., Mel'nitskiy, I.V., Tverdohvalov, A.V., Tsyatsko, V.V., Shopen, O.A.
• Format: Article
• Language: English
• Published: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2014
• Series: Вопросы атомной науки и техники
• Subjects: Ядерно-физические методы и обработка данных
• Online Access: http://dspace.nbuv.gov.ua/handle/123456789/80491

Investigation of the processes of interaction of ionizing radiation with complex organic objects can solve a number of fundamental and applied problems in radiation physics, chemistry and biology. In this work we investigated the dose dependence (dose range 1...5 M Rad) optical density relative concentrations of water, alcohol and glycerine solution following organic dyes: methylene blue - C₁₆H₁₈N₃SCl and methyl orange - C₁₄H₁₄N₃O₃SNa, irradiated with an electron beam with an energy of 16 MeV . In the analysis of absorption spectra, it was found that water solutions of dyes have less resistance to radiation as compared with the alcohol and glycerol. Also, all solutions of methyl orange less radiation resistant than the methylene blue solution. Analysis of the spectra showed that these relationships are close to linear in the range of doses. To understand the physical and chemical processes occurring in the interaction of relativistic electrons with the studied organic objects were performed the computer simulations of the energy spectra of ions formed due to breaking the chemical bonds of molecules of dye solutions using the program SRIM-2010. The analysis showed that radiation - stimulated chemical processes play a major role in the destruction of the source of organic dye molecules. The remaining processes (interaction of electrons and nuclei, the cascade processes) accounts for about 10% of all molecular breaks.