| Abstract: | The Five-hundred-meter Aperture Spherical radio Telescope(FAST) passed its national acceptance inspection on 2020 January 11. This special issue includes a total of 15 papers, which are selected to introduce the status of FAST's performance and demonstrate the key technologies applied to FAST. The presented performance parameters can provide an important reference for scientists to propose observations with FAST. The key technologies presented in these papers include design and implementation in the measurement and control system, electromagnetic compatibility system, and receiver system. Finally, scientific achievements obtained by FAST during the commissioning phase are also reported. |
