Obtaining and characterization of stilbene polycrystals for detection of charged particles

• Видавець: НТК «Інститут монокристалів» НАН України
• Дата: 2018
• Автори: Tarasov, V., Andryushchenko, L., Vlasova, I., Shlyakhturov, V., Shpilinskaya, O., Trefilova, L., Rybka, E.
• Формат: Стаття
• Мова: English
• Опубліковано: НТК «Інститут монокристалів» НАН України 2018
• Назва видання: Functional Materials
• Теми: Characterization and properties
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/157162
• Цитувати: Obtaining and characterization of stilbene polycrystals for detection of charged particles / V. Tarasov, L. Andryushchenko, I. Vlasova, V .Shlyakhturov, O. Shpilinskaya, L. Trefilova, E. Rybka // Functional Materials. — 2018. — Т. 25, № 3. — С. 445-449. — Бібліогр.: 12 назв. — англ.

Stilbene polycrystals with improved energy resolution were obtained by technique of hot vacuum pressing of plate-shape crystallites grown by crystallization from saturated solution of stilbene powder in dichloro-ethane. Transparency and scintillation parameters of the stilbene polycrystals were found to depend on the duration of keeping the initial material under vacuum before pressing. In comparison with 8.2 % energy resolution of the stilbene single crystal, the stilbene polycrystal has 8.8 % energy resolution under 624 keV electrons, whereas under 5.5 MeV α-particles, both the stilbene poly- and single crystals have 11.9 % energy resolution.