(240427) -- HEFEI, April 27, 2024 (Xinhua) -- Staff members assemble the megawatt-level negative ion beam source at the park of Comprehensive Research Facility for Fusion Technology (CRAFT) in Hefei, east China's Anhui Province, April 25, 2024. Scientific researchers and engineers are speeding up the construction of CRAFT as the project, a facility in pipeline, serving as a platform on which key components for fusion energy reactors are developed and tested, is expected to be finished in 2025. (Xinhua/Zhou Mu)