Hello, I am a beginner trying to implement the Coil magnetic field in Geant4, which not only has a constant value, but also varies with increasing distance. If the field is implemented in the reverse direction, it will also be cancelled.
Currently, I am implementing a magnetic field in which I have to fix the volume and set a constant magnetic field in that volume. But I want to properly implement the magnetic field so that, if I also calculate the field at a distance from the coil, it will drop as r^3.
How can I do this in Geant4?
Geant4 Version: 11.3.2
Operating System: Ubuntu
CMake Version: 4.3.4