Space Telescope Science Institute . ACS Instrument Handbook Cycle 19 . ... The WFC employs a mosaic of two 4096 x 2048 Scientific Imaging Technologies (SITe) CCDs. ... The ACS design incorporates two main optical channels: one for the WFC, and one which is shared by the HRC and SBC. ... The WFC has silver-coated optics to optimize instrument throughput in the visible and near-IR. ... ACS has three filter wheels: two shared by the WFC and HRC, and a separate wheel dedicated to the SBC. ...
ST-ECF Instrument Science Report WFC3-2008-15 The TV2 ground calibrations of the WFC3 NIR grisms H. Kuntschner, H. Bushouse, J. R. Walsh, M. KЭmmel July 08, 2008 ABS TRACT Based on thermal vacuum tests (TV2; June - August 2007), the performance of the WFC3 near-IR G102 and G141 grisms has been assessed. ... The setup for G141 is identical. ... 10 ST-ECF Instrument Science Report WFC3-2008-15 Figure 5: Instrument efficiency of various orders for the WFC3 G141 grism as function of wavelength. ...
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