The instruments on JWST are name wavelength detectors operating temp (microns) ----------------------------------------------------------------------- NIRCam 0.5 - 5.0 HgCdTe ~ 40 K MIRI 4.9 - 28.8 Si:As < 6.7 K NIRISS 0.6 - 5.0 HgCdTe ~ 40 K NIRSpec 0.6 - 5.3 HgCdTe ~ 40 K -----------------------------------------------------------------------