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The photoluminescence quenching behaviors of 5D3-7FJ and 5D4-7FJ (J = 0-6) transitions of Tb3+ in YBO3:Tb under 130-290 nm excitation were systematically investigated.The results revealed that the quenching concentrations of both 5D3-7FJ and 5D4-7FJ transitions of Tb3+ in YBO3:Tb were mainly dependent on excitation wavelength.Particularly, the quenching concentrations of 5D4-7FJ transitions of Tb3+ under 130-290 nm excitation were correlated with excitation bands of YBO3:Tb.The quenching concentrations of 5D3-7FJ transitions remained at low concentration (2%) under 186-290 nm excitation and then increased gradually with energy of incoming excitation photon when excited at 130-186 nm.This dependence should be involved in their excitation mechanisms and quenching pathway in particular excitation region.