Effect of different organic additives on the shape, size and scintillation properties of Bi4Ge3O12 powders synthesized by the microwave-hydrothermal method

A One‐Step Synthesis of Dispersed Bismuth Orthogermanate Powder and its Performance for Alpha‐ and Gamma‐Radiation Detection

“…Similar decrease in decay time with the decrease of particle size has been described for other phosphors before [35,36] . We observed such dependence earlier for BGO powders synthesized by the microwave‐hydrothermal method [22] …”

“…[35,36] We observed such dependence earlier for BGO powders synthesized by the microwave-hydrothermal method. [22] As with γ-ray excitation, BGO-1 sample that was not annealed after synthesis showed barely any scintillation flashes when irradiated with 241 Am α-particles within the device sensitivity. The amplitude spectrum and time characteristics of the observed pulses coincide with the characteristics of the dark pulses of the PMT anode current in the absence of a sample.…”

“…Several methods have been tried for the production of dispersed BGO: solid state, [12,13] hydrothermal, [14,15] sol‐gel, [16–18] flux synthesis, [19] self‐propagating high‐temperature synthesis [16,20] and others [21,22] . A common disadvantage of these synthetic methods is the complexity of the setup and the micron particle size of the resulting powders.…”

“…Several methods have been tried for the production of dispersed BGO: solid state, [12,13] hydrothermal, [14,15] sol-gel, [16][17][18] flux synthesis, [19] self-propagating high-temperature synthesis [16,20] and others. [21,22] A common disadvantage of these synthetic methods is the complexity of the setup and the micron particle size of the resulting powders. It is preferable to use low-cost synthetic methods: in [23] the possibility of BGO synthesis by the simple co-precipitation process was first demonstrated.…”

One-Dimensional Copper-Doped Rb2AgI3 with Efficient Sky-Blue Emission as a High-Performance X-ray Scintillator

“…Simultaneously, certain commercial scintillators that possess luminescent host lattices exhibit characteristics of self-activated emission. For instance, Bi 4 Ge 3 O 12 , serving as a radiation-resistant scintillator, exhibits self-quenching in light output when exposed to X-ray doses exceeding 10 6 to 10 7 rad . This intrinsic limitation significantly constrains their practical application in environments characterized by high-dose radiation.…”