X-ray camera for high brilliance imaging
KA Imaging is introducing is patented amorphous selenium (a-Se) BrillianSe™ X-ray camera for high brilliance imaging. The hybrid a-Se/CMOS detector uses an a-Se photoconductor with high intrinsic spatial resolution for direct conversion of X-ray photons to electric charge. The electronic signal is then read out by a low noise CMOS active pixel sensor. (APS). Without the need to first convert X-ray photons to visible light, as in indirect scintillator-based approaches, thinning of the conversion layer to minimize optical scatter is not necessary. BrillianSe™ provides a unique combination of high-spatial resolution using 8 μm pixels, and high Detective Quantum Efficiency (DQE) for energies up to 110 keV. This combination enables efficient imaging at low flux and high energy, as well as propagation -based (grating less) in-line phase-contrast enhancement for improved sensitivity when imaging low-density materials.
Amorphous Selenium with CMOS APS
DQE at 35 keV
40% at 10 cycles/mm
Propagation – based