Calculation of the frequency electronic transmission factors at the passage through the polymeric polyimide composite material filled by bismuth silicate

• Дата: 2017
• Автори: Pavlenko, А.V., Cherkashina, N.I., Yastrebinski, R.N., Noskov, A.V.
• Формат: Стаття
• Мова: English
• Опубліковано: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2017
• Назва видання: Вопросы атомной науки и техники
• Теми: Физика радиационных повреждений и явлений в твердых телах
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/136163
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Calculation of the frequency electronic transmission factors at the passage through the polymeric polyimide composite material filled by bismuth silicate / А.V. Pavlenko, N.I. Cherkashina, R.N. Yastrebinski, A.V. Noskov // Вопросы атомной науки и техники. — 2017. — № 5. — С. 21-26. — Бібліогр.: 6 назв. — англ.

In this paper, a theoretical evaluation of the interaction of fast electrons with a polymer polyimide composite filled with bismuth silicate was carried out, calculations were carried out for the specific energy losses of electrons and transmission coefficients. It is shown that the Bi, C, and O atoms make a greater contribution to the ionization losses, and the radiation losses are practically due only to the Bi atoms. It has been established that at the electron energies from 1 to 6 MeV, interesting from the point of view of electronic protection of equipment in outer space, the losses are mainly determined by the ionization of atoms, and not by radiation losses. It is established that for an electron energy of 6 MeV at a composite thickness of up to 0.8 cm, the transmittance by the number of electrons predominates, and at a composite thickness of more than 0.8 cm, the transmission coefficient of electrons over the energy begins to predominate. The high stability of the developed composite with respect to the flux of fast electrons is shown in the general case of their fall at different angles to the normal of the target surface.