China's first instrument to study the internal fine structure of materials

According to "Guangming Daily" reported on January 4, 2007: What is the electronic structure inside the material? Today, this puzzle that plagues scientists is expected to be solved. The "Ultra High Energy Resolution Vacuum Ultraviolet Laser Angle-Resolved Photoelectron Spectrometer" jointly developed by the Institute of Physics of the Chinese Academy of Sciences and the Institute of Physics and Chemistry has recently passed the expert appraisal by the Academician Gong Changde. Experts believe that the instrument is suitable for the study of the fine electronic structure of complex systems, and provides a key experimental means for explaining the causes of the singular physical properties of advanced materials, such as the mechanism of high-temperature superconductivity.

Researcher Zhou Xingjiang, the project leader, said that the material is metal, insulator, semiconductor or superconductor. These macroscopic physical properties are determined by the microscopic electronic structure of the material, and photoelectron spectrometer is an important tool for analyzing the electronic structure of materials. In the past, photoelectron spectrometers mainly adopted two methods: synchronous radiation source or gas discharge source. Vacuum ultraviolet lasers are a new source of light other than these two sources, and have made breakthroughs in solving energy resolution and surface sensitivity.

Experts such as Gan Zikai and other experts have consistently believed that this is the first time in the world to apply vacuum ultraviolet laser to high resolution angular resolution photoelectron spectroscopy. The main technical indicators are in the international leading position.

Jumbo Underground Drill Rig

The drilling jumbo rig is the main drilling equipment in the underground hard rock mine.
Manipulator drilling rig with high level of automation and computerization is not very attractive to mine.
The mine hopes to use the trolley with compact structure, flexible movement, high reliability, high efficiency and high accuracy.
Small enough to enter the shaft through a small section;
Maneuverable and flexible enough to walk in winding and inclined passages;
The versatility can be used to drill hole, bolt hole and cut hole in all directions.
In recent years, several major rock drilling equipment manufacturers in the world, in order to meet the requirements of mechanized mining of thin ore bodies, have successively developed a variety of small rock drills with high power, which can be used to complete the rock drilling operations that could only be completed by pneumatic drill, so as to significantly improve the efficiency of rock drilling and reduce ore dilution rate.

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