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In-orbit performance of LE onboard Insight-HXMT in the first 5 years

Li, Xiaobo; Zhang, Shuang-Nan; Tuo, Youli +18 more

The low-energy X-ray telescope (LE) is a main instrument of the Insight-HXMT mission and consists of 96 swept charge devices covering the 1–10 keV energy band. The energy gain and resolution are continuously calibrated by analyzing Cassiopeia A (Cas A) and blank sky data, while the effective areas are also calibrated with the observations of the C…