KINETICS OF INDUCED ABSORPTION PHENOMENA IN YAlO 3 :Ce SCINTILLATOR.

Authors :: Šulc, M.
Nikl, M.
Nejezchleb, K.
Blazek, K.
Vognar, M.
Source :: Radiation Effects & Defects in Solids; Jun2002, Vol. 157 Issue 6-12, p963-968, 6p, 1 Black and White Photograph, 3 Graphs
Publication Year :: 2002
Abstract: The set of samples of YAlO 3 :Ce further codoped by ZrO 2 at several concentrations from 0 ppm up to 1000 ppm (grown in CRYTUR Ltd., Turnov, Czech Republic) was irradiated 30 min at homogeneous gamma-radiation field, produced when irradiating W target by 21 MeV electrons beam from microtrone accelerator. Dose rates were ranging from 12 to 33 rad/min. Induced absorption spectra have three absorption bands. Temporal characteristics of the build-up and recovery of the induced absorption are evaluated using simple kinetics models. The obtained results are discussed. [ABSTRACT FROM AUTHOR]