Reciprocity Failure In 1.7μm Cutoff HgCdTe Detectors

被引：8

作者：

Hill, R. J. ^{[1
]}

Malumuth, E. ^{[1
]}

Foltz, R. ^{[1
]}

Kimble, R. A. ^{[1
]}

Waczynski, A. ^{[1
]}

Boehm, N. ^{[1
]}

Wen, Y. ^{[1
]}

Kan, E. ^{[1
]}

Collins, N. R. ^{[1
]}

机构：

[1] Conceptual Analyt Inc, Greenbelt, MD 20771 USA

来源：

HIGH ENERGY, OPTICAL, AND INFRARED DETECTORS FOR ASTRONOMY IV | 2010年 / 7742卷

关键词：

Wide Field Camera 3; Hubble Space Telescope; IR Detectors; HgCdTe; reciprocity failure;

D O I：

10.1117/12.857218

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Detector Characterization Laboratory at NASA/GSFC has investigated the reciprocity failure characteristics of 1.7 mu m cut-off HgCdTe devices provided by Teledyne Imaging Sensors to the Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) project. The reciprocity failure follows a power law behavior over the range of fluxes tested (0.1-10(4) photons/second). The slope of the power law varies among detectors, ranging from similar to 0.3-1%/dex at 1.0 mu m, which is much smaller than the similar to 6%/dex effect observed with the HST NICMOS 2.5 mu m cut-off detectors. In addition, the reciprocity failure exhibits no wavelength dependence, although only a restricted range of wavelengths (0.85-1.0 mu m) has been explored to date. Despite its relatively small magnitude, reciprocity failure is nevertheless an important effect in the calibration of WFC3 data, as well as in other applications in which there is a large difference in flux between the photometric standards and the scientific sources of interest.

引用

页数：7