Электронный каталог

Статья

Vasilyev, I.I.
Light Outputs of Yttrium Doped BaF&sub(2) Crystals Irradiated with Gamma / I.I.Vasilyev, V.Baranov, Yu.I.Davydov, N.A.Huseynov, J.Khushvaktov, M.N.Mirzayev, I.Zimin, [a.o.]. – Text : electronic // Journal of Instrumentation. – 2026. – Vol. 21, No. 4. – P. P04045. – URL: https://doi.org/10.1088/1748-0221/21/04/P04045.

This paper presents a study of gamma irradiation effects on the optical and scintillation properties of pure and yttrium-doped BaF&sub(2) crystals with yttrium concentrations of 1, 3, and 5 mol%. The optical transmittance, light output, and energy resolution of twenty-four 1×1×1 cm*3 samples were measured before and after &sup(60)Co gamma irradiation, with absorbed doses up to 3.56 Mrad. In pure BaF&sub(2) samples, no noticeable degradation in scintillation properties was observed with increasing absorbed dose. In yttrium-doped samples, a deterioration of scintillation properties is observed, with the fast component of crystal luminescence deteriorating more than the slow one. The correlation between the loss of light output and the radiation-induced decrease of optical transmittance, together with the absence of structural changes in Raman spectra, indicates that the degradation of scintillation properties is primarily due to increased self-absorption, rather than to disruption of the scintillation mechanism.



ОИЯИ = ОИЯИ (JINR)2026
Спец.(статьи,препринты) = С 349.1 - Действие излучения на материалы$