Abstract:
Thermoluminescent (TL) properties of monoclinic zirconium dioxide ceramics were studied
in order to assess the possibility of their use for measuring high doses (on the order of kGy) of pulsed
electron beams (130 keV). Two types of samples were used: those synthesized by sintering in an
electric furnace at T = 700–1700 ◦C and those synthesized in a flow of high-energy electrons (1.4 MeV)
with a high power density. Analysis of the X-ray diffraction patterns using the Scherrer method
revealed that annealing of ceramics of the first type at T > 1000 ◦C leads to a significant increase in the
size of crystallites, which correlates with a significant increase in the intensity of the TL peak at 390 K.
Type 2 ceramics synthesized by the electron beam method have the maximum TL response. Using
the peak shape analysis method, the kinetic parameters of TL (activation energy, frequency factor,
and kinetic order) were calculated. This study marks the first instance of establishing the patterns
of influence of synthesis conditions and crystallite size on their values. The presence of an intense
isolated TL peak, the sublinear nature of most dose dependencies, and negligible fading indicate the
promise of the ceramics synthesized in this work for measuring high doses (several to tens of kGy).
