两名91岁院士，同日去世

Core Points - The news reports the passing of two prominent Chinese scientists, Wei Baowen and Gong Zhiben, both aged 91, who made significant contributions to their respective fields of nuclear physics and atmospheric optics [3][7]. Group 1: Wei Baowen - Wei Baowen was a renowned nuclear physicist and accelerator physicist, serving as the chief engineer of China's first heavy ion accelerator and director of the Lanzhou Heavy Ion Accelerator National Laboratory [3][4]. - He was instrumental in resolving discrepancies in neutron collision data and led the construction of China's first large heavy ion accelerator, facilitating medium-energy heavy ion physics research [4]. - Wei Baowen received numerous awards, including the National Science and Technology Progress First Prize and the Chinese Academy of Sciences Special Prize for Scientific and Technological Progress [4]. Group 2: Gong Zhiben - Gong Zhiben was a leading figure in atmospheric optics research and served as a researcher at the Hefei Institute of Physical Science [7]. - He made pioneering contributions in laser atmospheric transmission and created an advanced laser testing facility in Hefei, significantly impacting the development of national high-power laser systems [7]. - Gong Zhiben was recognized with multiple awards, including the National Science Conference Award and several national science and technology progress awards [7].