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WFC3 technology
INSATLLATION
SCHEMATICS
DETECTORS
FILTERS
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Channel & detector part 1 part 2
Shown below is the spectrum coverage of the WFC3's two channels in relation to the visible spectrum of the human eye. The wide wavelength coverage at high efficiency is made possible by using two different detector technologies for each channel.
WFC3 spectrum coverage


Comparison of Sensitivity to Other Instruments
The expected total instrument throughput (sensitivity) as a function of wavelength is shown in the chart below. WFC3's throughput is compared to Hubble's other instruments. The optical purity of WFC3 will support diffraction-limited imaging (low distortion) over most of its range. This allows the instrument to exploit a well-defined and uniform point-spread-function over the entire field-of-view.
comparison of sensitvity to other intruments


Channel Characteristics Summary   (CLICK HERE FOR DEFINITIONS )
  UVis IR  
Format two 2048x4096
UV coating		 1024 x 1024 pixels
Field Size 160 x 160 123 x 139 arcsec
Resolution .04 .13 arcsec /pixel
Spectral Range 200 to 1000 800 to 1700 nm
Dark Current < 5.6x10^-5 < 0.05 e- /pix /sec
Readout Noise < 3 < 17 e- /pix /readout
Filters/Grism 47 / 1 14 / 2 ---

detectors part 2



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NASA - National Aeronautics and Space Administration
Curator: Lori Tyahla
Content Manager: Lori Tyahla
NASA Official: Randy Kimble
Last Updated: December 07, 2005
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