WFIRST coronagraph detector trap modeling results and improvements
WFIRST coronagraph detector trap modeling results and improvements
复制标题
WFIRST 日冕仪探测器陷阱建模结果和改进
DOI:
10.1117/12.2311408
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Holland A
中科院分区:
文献类型:
--
作者:
Holland A
The WFIRST coronagraph is being designed to detect and characterize mature exoplanets through the starlight reflected from their surfaces and atmospheres. The light incident on the detector from these distant exoplanets is estimated to be on the order of a few photons per pixel per hour. To measure such small signals, the project has baselined the CCD201 detector made by e2v, a low-noise and high-efficiency electron-multiplying charge-coupled device (EMCCD), and has instituted a rigorous test and modeling program to characterize the device prior to flight. An important consideration is detector performance degradation over the proposed mission lifetime due to radiation exposure in space. To quantify this estimated loss in performance, the project has built a detector trap model that takes into account detailed trap interactions at the sub-pixel level, including stochastic trap capture and release, and the deferment of charge into subsequent pixels during parallel and serial clocking of the pseudo-two-phase CCD201 device. This paper describes recent detector trap model improvements and modeling results.
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影响因子:
1.3
作者:
G. Seabroke;A. Holland;D. Burt;M. Robbins
通讯作者:
M. Robbins
DOI:
10.1117/12.925887
发表时间:
2012
期刊:
--
影响因子:
--
作者:
Clarke A
通讯作者:
Clarke A
影响因子:
1.3
作者:
N. Bush;Konstantin D. Stefanov;David J. Hall;Douglas Jordan;A. Holland
通讯作者:
A. Holland
影响因子:
1.3
作者:
D. Hall;N. Murray;J. Gow;D. Wood;A. Holland
通讯作者:
A. Holland
影响因子:
1.3
作者:
A. Short;T. Prod’homme;M. Weiler;Scott Brown;Anthony G. A. Brown
通讯作者:
Anthony G. A. Brown