AstroPix4 has been characterized: it detects 14 keV gamma rays, achieves about 14% FWHM resolution at 122 keV, saturates around 250 keV, and has a roughly 90 micrometer depletion depth at -240 V.
Caputo et al., ``All-sky Medium Energy Gamma-ray Observatory eXplorer mission concept,'' J
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Evaluation of gamma-ray response of the AstroPix4 HV-CMOS active pixel sensor
AstroPix4 has been characterized: it detects 14 keV gamma rays, achieves about 14% FWHM resolution at 122 keV, saturates around 250 keV, and has a roughly 90 micrometer depletion depth at -240 V.