The BL11U high-pressure diffraction beamline is a dedicated experimental platform designed for studying material structures under extreme high-pressure conditions. Utilizing the high brightness and penetration power of synchrotron radiation X-rays, combined with high-pressure devices such as diamond anvil cells (DAC) and large-volume presses, it can generate static high-pressure environments ranging from tens to millions of atmospheres. Equipped with micro-focused beams (micron to sub-micron scale), high-precision sample stages, and rapid two-dimensional detectors, it supports multiple modes including powder diffraction, single-crystal diffraction, and radial diffraction. This enables real-time measurements of lattice changes, phase transition pathways, equations of state, and electronic structure evolution in materials under high pressure. The beamline is widely applied in cutting-edge research areas such as mineral physics of Earth's deep interior, planetary science, superhard material synthesis, high-pressure superconducting mechanisms, and energetic material properties. Additionally, it provides coupled extreme conditions including cryogenic, high-temperature, and laser-heating environments, facilitating material science exploration under multi-field extreme conditions.
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