HomeMolecular BiologyCryo-EM CTF & Thon Ring Simulator

Cryo-EM CTF & Thon Ring Simulator

Interactive 2D simulator of the electron-microscope contrast transfer function (CTF): tune defocus, spherical aberration and accelerating voltage, watch the genuine 2D Thon-ring power spectrum and live 1D radial CTF profile respond in real time, and fit defocus back from a clicked ring.

Molecular Biology2DAdvanced60 FPS📱 Mobile-adapted⇄ 3D version
2d-cryo-electron-microscopy-single-particle-reconstruction ↗ Open standalone

Explore the electron-microscope contrast transfer function as a live 3D surface: tune defocus, spherical aberration, accelerating voltage and envelope damping and watch the Thon-ring pattern and zero-crossing resolution respond in real time.

⚙ Under the hood

Explore the electron-microscope contrast transfer function as a live 3D surface: tune defocus, spherical aberration, accelerating voltage and envelope damping and watch the Thon-ring pattern and zero-crossing resolution respond in real time.

cryo-emCTFThon ringselectron microscopystructural biologydefocus

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install

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