Key technologies for ionization and optical radiation measurement of extreme quantities through argumentation

[China Instrument Network Instrument R&D] On November 14th, the “Thirteenth Five-Year Plan” National Key R&D Program Key Project “National Quality Based Common Technology Research and Application” (hereinafter referred to as “NQI Special Project”) “Ionization and Optical Radiation Extreme Measurement "Key Technology Research" demonstration program will be held in China Institute of Metrology (hereinafter referred to as "China Metrology Institute").

The implementation plan will be presented on site. Photography: Chen Hanghang

From Tsinghua University, Beijing University of Technology, Chengdu University of Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing Metrology Institute, Institute of Applied Physics, Chinese Academy of Sciences, Institute of Physics and Chemistry, Chinese Academy of Sciences, Chinese Veterinary Drug Surveillance Agency, consultants, functional departments, project managers More than 40 people, including principals of each project and participating representatives, attended the demonstration meeting. Song Shuying, vice president of China Metrology Institute attended the meeting and delivered a speech.

The person in charge of the project and the researcher Wu Jinjie of China Metrology Institute explained the overall situation of the project, including the research objectives, research contents, technical routes, assessment indicators, work basis, safeguard measures, and expected results. The project mainly focuses on traceability requirements of radioactive environmental monitoring instruments, thermonuclear fusion X-ray diagnostic equipment, target stealth and suppression of stray light materials, and ultra-high laser power meters, and establishes standard devices for measuring low-dose-rate X-ray and gamma rays, (6 -70) keV Synchrotron radiation X-ray measurement standard device, infra-red stealth material bidirectional reflection distribution function measurement device and absolute laser high-power measurement standard device to effectively support nuclear energy construction, nuclear fusion research, target stealth, laser processing and defense equipment, etc. The development of the field.

The project is divided into four topics for research purposes, including: key techniques for low dose rate X-ray and gamma ray measurement, key radiography X-ray measurement for high fluence rate, and bidirectional reflectance distribution function measurement for infrared radiation stealth materials. , Key Technology Research on Measurement of Power Characteristics of Ultra-intense Infrared Laser Radiation Source.

The person in charge of each subject separately reported the research objectives, research contents, research methods and technical routes, budget estimates and assessment indicators of the project.

The consultants listened carefully to the report and focused on the issues related to the establishment of standard devices and measuring devices in the implementation plan, the comparison of the expected completion indicators with the targets, the preliminary research basis, and the clarification and refinement of key technologies. After discussion, the participating experts unanimously agreed that the implementation plan is in line with the NQI special requirements. The project has a clear research goal, reasonable contents and topics, a feasible technical route, and quantified assessment indicators, and agreed to pass the demonstration.

The project was led by the China Metrology Institute, and various resources such as scientific research institutes and universities in the United Nations were implemented jointly. Through the research of this project, we will establish and perfect extreme quantity measurement systems such as low dose rate, high fluence rate, stealth material optics, and ultra-high laser power to support nuclear energy construction, nuclear fusion research, target stealth, laser processing and defense equipment, etc. The development of the field will enhance China's industrial, defense and aerospace construction capabilities.

(Original title: NQI Special Project "Ionization and Optical Radiation Measurement of Key Technologies" Implementing Plan Passes Demonstration)