Equal-angle fan-beam CT

[gggah]

Can ODL perform equal-angle fan-beam CT reconstruction, and if so, how should I set up the geometry?/

[Emvlt]

Hello,

If by "equal-angle" you mean that the detector pixels should be equally spaced, it is straightforward: please check this demo

[leftaroundabout]

Your particular scenario seems like it should directly be tackled with CircularDetector (for 2D), or CylindricalDetector (for 3D) instead. Use a suitable partition for the (angular-)uniform sampling as desired, and the translation parameter to place the detector where you want it.

If you need more detailed help, please provide more concrete information about your geometry.

[gggah]

Your particular scenario seems like it should directly be tackled with CircularDetector (for 2D), or CylindricalDetector (for 3D) instead. Use a suitable partition for the (angular-)uniform sampling as desired, and the translation parameter to place the detector where you want it.

If you need more detailed help, please provide more concrete information about your geometry.

Hi, thank you very much for your reply, I would like to realize the following configuration, where the rays are equally spaced at an angle of roughly 0.077°. And for the reconstruction I want to utilize SART for the reconstruction, do I still need to call astra? Very much looking f

orward to your explanation.