According to news from the University of Science and Technology of China, the dark matter particle detection satellite (abbreviated DAMPE) payload BGO calorimeter subsystem has recently completed all beam calibration experiments at the European Nuclear Center, further validating the detection performance of the DAMPE spectrometer. This critical calibration experiment is an important advance for Chinese dark matter satellite research.
The Dark Matter Particle Detection Satellite is one of the first scientific satellites identified in the Chinese Academy of Sciences' space science pilot project. It is also the first star of the Chinese scientific satellite series. He will replace the human eye and capture the traces of dark matter from the vast universe. The BGO energy meter is the key subsystem for realizing the core detection function of dark matter satellites.
According to reports, the beam calibration experiment is to use high-energy particle test detector detection performance to confirm whether the performance indicators meet the design requirements, and provide calibration basis for subsequent satellite on-orbit experimental data analysis. In the program and initial development stage, the BGO energy meter subsystem successfully completed two beam calibration experiments at the European Nuclear Center in October 2012 and October to November 2014, respectively, using high-energy electron beam flow and the like to verify the amount. Components such as energy detectors, electronics, online control devices and related data analysis software are functioning normally, and important indicators such as energy resolution and energy linearity are qualified.
In the development stage of the normal sample, it is necessary to further study the indicators of the high-energy ion detection capability of the outer space of the BGO calorimeter through diversified heavy ions and proton beam currents. On the one hand, the research team of the State Key Laboratory of Nuclear Detection and Nuclear Electronics of the Chinese University of Science and Technology ensured the smooth development of the prototype work. In May of this year, the BGO calorimeter subsystem was successfully delivered and assisted in the follow-up assembly and environment. On the other hand, in March and June of this year, I went to the European Nuclear Center twice to carry out relevant calibration experiments, successfully completed the BGO calorimeter data interpretation task and the partial installation of the test beam line.
It is also known that the current dark space satellite payload successfully completed the joint test and successfully delivered the satellite as a whole, laying the foundation for ensuring that the satellite will launch as scheduled at the end of this year.
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