Recently, the spallation neutron source project passed the process appraisal and acceptance organized by the Chinese Academy of Sciences, which means that 23 subsidiary companies of China Aerospace Science and Industry Second Institute as a core auxiliary equipment supplier provide nearly 50 sets of accelerators for the project. All sets of power source equipment meet acceptance criteria and the 'Super Microscope' 'Power Heart' will begin work.
The term 'supermicroscope' was derived from the work of Prof. Chen Hesheng, the leader of the spallation neutron source project. Academician Chen said that the acceleration of protons to 1600 million eV is equivalent to 0.9 times the speed of light. The proton beam is called a 'bullet' and detonated. A heavy metal target with a very high atomic number. A metal target's nuclei are bombarded with protons and neutrons. Scientists 'collect' neutrons through special devices. Neutron scattering is like a 'probe' and is a powerful tool for exploring the microstructure of matter. One, 'Super Microscope' spallation neutron source came into being.
Acceleration to 0.9 times the speed of light requires accelerator boost, and the power of the accelerator comes from the space-based RF power system. It can be said that these systems are the 'power' of the 'super microscope' because of the large number of RF power systems. There is no domestic precedent for key equipment, and the reliability requirements are extremely high. Many manufacturers are discouraged. The space shuttle has faced difficulties, and has laid down one hard bone after another. It has developed the first high-power tetrode power source with 200MHz or more power in China. The first digital low-level system applied to the accelerator system, the overall performance of the RCS loop radio frequency ferrite loading chamber has reached the international first-class level. DTL linear accelerator 3MW 324MHz klystron pulsed RF power source stable operation for nearly 1000 hours. Localization of engineering equipment and smooth progress of system engineering provide strong support and guarantee.