Quantitative characterization of electron detectors for transmission electron microscopy.
Quantitative characterization of electron detectors for transmission electron microscopy.
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DOI:
10.1016/j.jsb.2013.10.016
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发表时间:
2013-12
影响因子:
3
通讯作者:
Grigorieff, Nikolaus
中科院分区:
文献类型:
--
作者:
Ruskin, Adrian I.;Yu, Zhiheng;Grigorieff, Nikolaus
A new generation of direct electron detectors for transmission electron microscopy (TEM) promises significant improvement over previous detectors in terms of their modulation transfer function (MTF) and detective quantum efficiency (DQE). However, the performance of these new detectors needs to be carefully monitored in order to optimize imaging conditions and check for degradation over time. We have developed an easy-to-use software tool, FindDQE, to measure MTF and DQE of electron detectors using images of a microscope’s built-in beam stop. Using this software, we have determined the DQE curves of four direct electron detectors currently available: the Gatan K2 Summit, the FEI Falcon I and II, and the Direct Electron DE-12, under a variety of total dose and dose rate conditions. We have additionally measured the curves for the Gatan US4000 and TVIPS F416 scintillator-based cameras. We compare the results from our new method with published curves.
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影响因子:
48
作者:
Li, Xueming;Mooney, Paul;Zheng, Shawn;Booth, Christopher R.;Braunfeld, Michael B.;Gubbens, Sander;Agard, David A.;Cheng, Yifan
通讯作者:
Cheng, Yifan
影响因子:
2.2
作者:
McMullan, G.;Chen, S.;Henderson, R.;Faruqi, A. R.
通讯作者:
Faruqi, A. R.
DOI:
10.1126/science.1187433
发表时间:
2010-08-27
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Liu H;Jin L;Koh SB;Atanasov I;Schein S;Wu L;Zhou ZH
通讯作者:
Zhou ZH
影响因子:
3
作者:
Penczek, PA;Frank, J;Spahn, CMT
通讯作者:
Spahn, CMT
影响因子:
3
作者:
Crowther, RA;Henderson, R;Smith, JM
通讯作者:
Smith, JM