Speaker
Description
ESO has characterized upwards of 15 H4RG detectors with 15 µm pixels and 2.5 µm cut-off material. The ELT’s MICADO and HARMONI instruments require 17 of these detectors. We have constructed a purpose-built IR test facility, called FIAT, to allow full detector characterization. In the most recent period, we have now fully characterized 10 H4RG-15 detectors, for the MICADO instrument, in this facility, from temperatures of 40K to 85K. We have measured the usual detector performance parameters but also looked in detail at the output buffer glow issues, crosstalk between channels, high contact resistance pixels, the effects of the crosshatch pattern, persistence, and hot pixel effects. This talk will give an overview of this testing and characterization.