CdZnTe (CZT) is a new type of compound semiconductor that has emerged in recent years. Compared to other semiconductor materials, it possesses an ideal bandgap, high density, and high electron mobility, rendering it an excellent room-temperature composite semiconductor material for X-ray and γ-ray detectors. Due to the exceptional performance of CZT material, detectors manufactured using it exhibit high energy resolution, spatial resolution, and detection efficiency. They also have the advantage of operating at room temperature. CZT array detectors, furthermore, demonstrate outstanding spatial detection and three-dimensional imaging capabilities. Researchers worldwide have conducted extensive studies on this subject. This paper, building upon this foundation, provides a comprehensive analysis of CZT crystals and CZT array detectors and summarizes existing research to offer valuable insights for envisioning new detector methodologies.

The detection of α particles is of great significance in military and civil nuclear facility management. At present, the contact method is mainly used to detect α particles, but its shortcomings limit the broad application of this method. In recent years, preliminary research on noncontact α-particle detection methods has been carried out. In this paper, the theory of noncontact α-particles detection methods is introduced and studied. We also review the direct detection and imaging methods of α particles based on the different wavelengths of fluorescence photons, and analyze the application and development of this method, providing an important reference for researchers to carry out related work.

Lead halide perovskites have shown high performance in radiation detection techniques owing to their excellent optoelectronic properties and stability. However, the high resistivity of the CsPbBr₃ radiation detector is intensively dependent on the growth quality of the single crystal, which is closely related to temperature gradients or the introduction of additives. Herein, a CsPbBr₃ single crystal with high radiation performance is grown based on the proposed temperature‐concentration balance (TCB) method. The prepared perfect single crystal remains high quality in repeated experiments, which belongs to the Pnma space group, benefiting from the effective growth method. Based on the CsPbBr₃ single crystal, the fabricated detector with the asymmetrical Au‐In electrodes demonstrates outstanding linearity under reverse bias. It exhibits a lower dark current (2.66 × 10⁻² nA) and high resistivity, which helps acquire a broader radiation measurement range. Moreover, the emission spectrum of the CsPbBr₃ single crystals exhibits a sharp emission peak at 527 nm and narrower full width at half maximum, making crystals easily couple into radiation detectors. These findings provide insight into the growth and regulation of CsPbBr₃ crystal for more extensive applications in radiation detection in the future.

The diffusion behavior of iodine in micro/nano-porous graphite under high-temperature conditions was studied using analysis methods such as Rutherford backscattering Spectrometry, scanning electron microscopy, X-ray diffraction, and Raman spectroscopy. The results indicate that iodine diffusion leads to the Lattice Contractions in Microcrystals, a decrease in interlayer spacing, and a rise of defect density. And the reversal or repair of microstructure change was observed: the microcrystal size of the graphite increases, the interlayer spacing appears to return to the initial state, and the defect density decreases, upon diffusion of iodine out of iodine-loaded graphite. The comparative study comparing the iodine diffusion performance of nanoporous graphite (G400 and G450) between microporous graphite (G500), showed that nanoporous graphite exhibits a better barrier to the iodine diffusion. The study on the diffusion behavior of iodine in micro/nano-porous graphite holds substantial academic and engineering value for the screening, design, and performance optimization of nuclear graphite.