Performance of the HI-101 IR Detector Measured Using the MPIA System

Details Performance of the HI-101 IR Detector Measured Using the MPIA System Performance of the HI-101 IR Detector Measured Using the MPIA System

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001wfc..rept...15d&link_type=abstract

Instrument Science Report WFC3 2001-015, 19 pages

Physics

Hubble Space Telescope, Hst, Space Telescope Science Institute, Wide Field Camera 3, Wfc3

Scientific paper

The WFC3 infrared detector prototype, called HAWAII-101, developed at the Rockwell Science Center (RSC), was recently tested by the WFC3 group using a dewar and data acquisition system built by the Max Planck Institute in Heidelberg, Germany. The purpose of the test was to estimate the dark current, readout noise, and gain in both single and double sampling data. Using the correlated double sampling mode, the readout noise is in the range 19 to 34 electrons or 3 to 6 DN, and the gain is less than 6 electrons/adu for the four quadrants. The estimated dark current at 150 K with single sampling is approximately 0.1 electrons/pixels/second and at 145 K it is between 0.06 and 0.07 electrons/ pixel/second. These values surpass the Contract End Item requirement. Also, signal determined from unbonded pixels near the corners of the array is investigated as an offset signal to remove the "pedestal" effect.

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