Abstract
Abstract
The Low Energy X-ray Telescope (LE) is an important
instrument of the Insight-Hard X-ray Modulation Telescope
(Insight-HXMT), which performs scanning and point observation in the
soft X-ray energy band (0.7–13 keV). Since its launch in 2017,
it has conducted a large number of scientific observations and
achieved significant astronomical discoveries. LE is composed of
three detector boxes and an electronic control box. The data
acquisition system of LE is designed to use periodic sampling, which
solves the problem of unstable noise peaks. Data loss may occur when
observing X-ray bursts, and periodic sampling provides a method of
correcting light curves. In addition, in the South Atlantic Anomaly
(SAA) or where the count rate of the particle monitor on the
Insight-HXMT is very high, LE automatically switches into SAA
operating mode, and only a small number of events are
recorded. After data correction, the light curves can be estimated
to expand the astronomical achievements of LE.