Fig 33- - uploaded by Martin J. Hardcastle
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The baseline AXIS Focal Plane Array utilizes a CCD/CMOS hybrid design. Both detector technologies are included to capitalize on parallel technological development; the final design will likely use a single detector technology.
Source publication
Much of the baryonic matter in the Universe, including the most active and luminous sources, are best studied in the X-ray band. Key advances in X-ray optics and detectors have paved the way for the Advanced X-ray Imaging Satellite (AXIS), a Probe-class mission that is a major improvement over Chandra, which has generated a steady stream of importa...
Contexts in source publication
Context 1
... technologies currently in advanced development: CCDs with low clock power and fast, massively parallel readout; and, CMOS active pixel sensors, which are fast, low-power, radiation-hard devices. The AXIS FPA uses four 1.5k×2.5k CCDs to tile the majority of the focal plane outside of the center, and a single, smaller 1k×1k CMOS in the center (see Fig. 33) to minimize pile-up of bright targets. The CCDs are tilted to match the curved focal plane, minimizing image distortion. Both detector types are back-illuminated and fully depleted to 100 µm to ensure high QE across the AXIS band of 0.2-12 keV. The 16µm (0.37 ) pixel size is sufficient to sample the 0.4 mirror PSF, because charge from ...
Context 2
... technologies currently in advanced development: CCDs with low clock power and fast, massively parallel readout; and, CMOS active pixel sensors, which are fast, low-power, radiation-hard devices. The AXIS FPA uses four 1.5k×2.5k CCDs to tile the majority of the focal plane outside of the center, and a single, smaller 1k×1k CMOS in the center (see Fig. 33) to minimize pile-up of bright targets. The CCDs are tilted to match the curved focal plane, minimizing image distortion. Both detector types are back-illuminated and fully depleted to 100 µm to ensure high QE across the AXIS band of 0.2-12 keV. The 16µm (0.37 ) pixel size is sufficient to sample the 0.4 mirror PSF, because charge from ...
