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单词 Contrast transfer Function
释义

Contrast transfer Function

英语百科

Contrast transfer function

Power spectrum (Fourier transform) of a typical electron micrograph.  The effect of the contrast transfer function can be seen in the alternating light and dark rings (Thon rings), which show the relation between contrast and spatial frequency.
TEM Ray Diagram with Phase Contrast Transfer Function
CTF Function prepared via web applet created by Jiang and Chiu, available at http://jiang.bio.purdue.edu/software/ctf/ctfapplet.html

The contrast transfer function mathematically describes how aberrations in a transmission electron microscope modify the image of a sample. This contrast transfer function (CTF) sets the resolution of High-Resolution Transmission Electron Microscopy (HRTEM), also known as phase contrast TEM.

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更新时间:2025/6/18 19:59:06