Graduate Student Reagent-Chinese Academy of Sciences ion-electron correlation momentum spectrometer passed acceptance

The ion-electron correlation momentum spectrometer of the Chinese Academy of Sciences passed acceptance Organized on-site testing and acceptance. The acceptance expert group tested the various indicators of the spectrometer, listened to the project work report, financial report, and test report of the technical test expert group leader of the project leader, Liu Xiaojun, and discussed the technology encountered during the project development process. Problems and solutions. The expert group agreed that the project completed the equipment development task, and that various indicators met or exceeded the expected set targets and agreed to pass the acceptance. "Ion-electron correlation momentum spectrometer" can simultaneously measure the complete momentum information of multiple electrons and ions generated by the interaction of a femtosecond strong laser with atoms and molecules. Through the correlation analysis of ion-electron momentum, the different fragments caused by interaction The solution channel reveals the dynamic process of multi-body disintegration of atoms and molecules in the femtosecond intense light field. Due to the advantages of high collection efficiency of charged particles, complete momentum measurement of reaction products, and ion-electron coincidence measurement, etc., the “ion-electron correlation momentum spectrometer” has become an atomic molecule in femtosecond or even attosecond time scale One of the important experimental tools for multibody association research. The successful development of the spectrometer provides a powerful means to improve the experimental conditions of the institute in related research fields and the ultrafast dynamics of atomic and molecular studies. At present, the instrument has been used in the research of major national scientific research projects and has achieved preliminary research results.

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