Recent progress in research on the dynamic process of high-energy explosives through pump-probe experiments at high-intensity laser facilities

• DOI: 10.1016/j.enmf.2023.06.003
• Publication Date: 2023-06-20T01:26:38Z
• Authors: Gen-bai Chu; Tao Xi; Shao-yi Wang; Min Shui; Yong-hong Yan; Guo-qing Lv; Yao Wang; Ming-hai Yu; Xiao-hui Zhang; Fang Tan; Jian-ting Xin; Liang Wang; Yu-chi Wu; Jing-qin Su; Wei-min Zhou
• Keywords: TATB; Energetic material

To accurately predict the detonation and safety performances of high-energy explosives, it is necessary to investigate their reaction mechanisms on different scales, which, however, presents a challenge due complex kinetics explosives lack experimental methods presently. This work introduces time-resolved pump-probe experiments capabilities aiming at based large-scale laser facilities recent progress in research dynamic process obtaining following understandings: (1) First, micron-sized single-crystal 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) can be compressed an overdriven state facility, followed by shock Hugoniot measurements TATB; (2) Second, high resolution transient X-ray radiography makes possible achieve imaging internal deformation, damage, dynamics explosive under loading; (3) Third, phase transformation chemical products shock-compressed investigated using diffraction or scattering spectra; (4) Finally, structural changes, molecular reactions, bond cleavage, intermediate product components ultrafast pumping explored spectroscopy. Large-scale provide various flexible methods, including loading, imaging, diffraction, spectroscopy, allowing series carried out evaluate levels ignitions from low-pressure detonations. Furthermore, also enable situ, real-time investigations transition, loading spatial temporal resolutions. The study microscopic-mesoscopic scales provides efficient means unravel mystery reactions.