Neutron observations from the energetic particle detector on China’s Space Station

The energetic particle detector on China’s space station can determine the energy, flux, and direction of medium- and high-energy protons, electrons, heavy ions, and neutrons within the path of the station's orbit. It also assesses the linear energy transfer (LET) spectra and radiation dose rates generated by these particles. Neutron detection is a significant component of this work, utilizing a new type of Cs₂LiYCl₆: Ce scintillator material along with plastic scintillators as sensors. In-orbit testing has demonstrated the efficient identification of space neutrons and gamma rays (n/γ). This data plays a crucial role in supporting manned space engineering, scientific research, and other related fields.