Coronal-Temperature-Diagnostic Capability of the Hinode/X-Ray Telescope Based on Self-Consistent Calibration. II. Calibration with on-Orbit Data

摘要

The X-Ray Telescope (XRT) onboard the Hinode satellite is an X-ray imagerthat observes the solar corona with the capability of diagnosing coronaltemperatures from less than 1 MK to more than 10 MK. To make full use of thiscapability, Narukage et al. (Solar Phys. 269, 169, 2011) determined thethickness of each of the X-ray focal-plane analysis filters based oncalibration measurements from the ground-based end-to-end test. However, intheir paper, the calibration of the thicker filters for observations of activeregions and flares, namely the med-Be, med-Al, thick-Al and thick-Be filters,was insufficient due to the insufficient X-ray flux used in the measurements.In this work, we recalibrate those thicker filters using quiescent activeregion data taken with multiple filters of XRT. On the basis of our updatedcalibration results, we present the revised coronal-temperature-diagnosticcapability of XRT.