# CT vs SEM: Which Is Better?

> Contrast the capabilities of micro-CT and SEM: explore their strengths and learn when to use each technique to get the insight you need.

Source: https://covalent.com/resource-library/ct-vs-sem-which-is-better/
Updated: 2026-01-05T10:13:04+00:00

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# CT vs SEM: Which Is Better?

 ![CT vs SEM: Which Is Better?](https://spcdn.shortpixel.ai/spio/ret_img,q_cdnize,to_auto,s_webp:avif/covalent.com/wp-content/uploads/2023/10/CT-vs-SEM-Which-is-Better-.jpg)

Jul 10, 2022

If you need to analyze subsurface features in your advanced materials or devices, should you use [Micro-Computed X-ray Tomography (Micro-CT)](https://covalent.com/techniques/morphology-structural-analysis/micro-x-ray-computed-tomography-micro-ct/) or [Scanning Electron Microscopy (SEM)](https://covalent.com/techniques/electron-microscopy/scanning-electron-microscopy-sem/)?

The answer depends on the sample and your research aim.

In this eBook, X-ray CT expert Aya Takase from Rigaku has invited an SEM expert, Avery Green from Covalent, to discuss the different uses of both techniques. Aya and Avery answer commonly asked questions about X-ray CT and SEM and choose a winner for each case.

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