WFC3 TV3 Testing: Quantum Yield in the UV

Details WFC3 TV3 Testing: Quantum Yield in the UV WFC3 TV3 Testing: Quantum Yield in the UV

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008wfc..rept...47b&link_type=abstract

WFC3 Instrument Science Report 2008-47, 5 pages

Computer Science

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

Scientific paper

The gain for the integrated WFC3 UVIS-1' flight detector has been computed using the mean-variance method on flatfields taken in a small set of UV filters. These gains are compared to the gain computed in the visible (F606W) in order to estimate the quantum yield for the UVIS-1' detector. The measured quantum yields are 1.07, 1.08, 1.03, and 1.00 e-/ photon, for F218W, F225W, F275W, and F336W, respectively, with errors of ~0.02 e-/pho- ton, except for F218W, where the error is ~0.06 e-/photon due to some adverse effects attributed to the D2 lamp warm-up. The measured values are up to ~30% less than the predicted quantum yields (1.55, 1.45, 1.25, and 1.01e-/photon).

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