James Webb Space Telescope Near-Infrared Spectrograph: Dark Performance Of The First Flight Candidate Detector Arrays

The James Webb Space Telescope (JWST) Near Infrared Spectrograph (NIRSpec) incorporates two 5 mu m cutoff (lambda(co) = 5 mu m) 2048 x 2048 pixel Teledyne HgCdTe HAWAII-2RG sensor chip assemblies. These detector arrays, and the two Teledyne SIDECAR. application specific integrated circuits that control theirs, are operated in space at T similar to 37 K. This article focuses on the measured performance of the first flight-candidate, and near-flight candidate, detector arrays. These are the first flight: packaged detector arrays that meet NIRSpec's challenging 6 e(-) rms total noise requirement.