Optically based dosimetry of high-energy radiation using the undoped lithium tetraborate crystals: Nonlinear features

New structural–optical effect in LiF–Li2B4O7 thin‐film structures in the crystallization

“…The compounds mentioned above have high transparency in the range from ultraviolet to infrared region of the spectrum, and Li 2 B 4 O 7 can be obtained in the form of both crystalline and glassy samples. The presence of a wide band gap (>7 eV) allows the creation of different sets of discrete energy levels by introducing appropriate impurity activators [15]. Each of these combinations is responsible for its scheme of accumulation of energy absorbed due to ionizing radiation and its relaxation through the optical channel by thermostimulated luminescence (TSL).…”