Development and Calibration of the ART-XC Mirror Modules for the Spectrum Rontgen Gamma Mission

Parameter ValueNumber of Mirror Modules 7=4+3Number of Shells per Module 28Shell Coating > 10 nm of iridium (> 90% bulk density)Shell Total Length, inner and outer diameters580 mm, 50 mm, 150 mmEncircled Half Energy Width Less than 1 mm diameter, center of field of viewLess than 2.5 mm diameter, instrument15 arcmin off axis Mirror Module Effective Area ≥ 65 cm