Dear FLUKA experts, I am trying to implement a 2D interpolated magnetic field via MGNDATA but cannot make it work: test_MGNDATA.flair (1.8 KB) If I stick to the manual / FLAIR enforced format (“One such card should be provided per grid point”), FLUKA aborts with ERROR: not all field data values …

Hello Roman, I see you are using a 2D interpolation. You need to use one MNGDATA card for each magnetic field that you want to define. It is important to remember that the magnetic field is in the (x, y) plane. In other words, the Bz component is always zero, and you need to define only Bx and By. …

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MGNDATA input format

Physics, Transport and Magnetic Fields

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