Luminescence energy yields of organic solid materials exited by photons of light or gamma-radiation

• Published in: Functional Materials
• Date: 2012
• Main Authors: Tarasenko, O.A., Galunov, N.Z., Panikarskaya, V.D., Sanin, E.V., Tarasov, V.A., Volkov, V.L.
• Format: Article
• Language: English
• Published: НТК «Інститут монокристалів» НАН України 2012
• Subjects: Devices and instruments
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/135322
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Luminescence energy yields of organic solid materials exited by photons of light or gamma-radiation / O.A. Tarasenko, N.Z. Galunov, V.D. Panikarskaya, E.V. Sanin, V.A. Tarasov, V.L. Volkov // Functional Materials. — 2012. — Т. 19, № 3. — С. 404-409. — Бібліогр.: 18 назв. — англ.

In this paper we compare the energy yields both for the case of excitation by light photons of the visible range and for the excitation by gamma radiation for some organic scintillation crystals and polystyrene plastic scintillator. In the first case the energy of excitation is lower than the ionization potential of molecules, and in the second one the energy of excitation is higher than the ionization potential of molecules. It has been obtained that the energy yield in the case of excitation by photons of gamma radiation Yy is in the range from 0.018 to 0.056. These values are an order of magnitude smaller than the energy yield Yf obtained for photoexcitation.