In theory: use nlostp() in loss code. Add circle aperture type. Interpolate for all aperture types. Use the correct octagon form (to be tested). Don't skip postpr if we lose all particles. Delete some un-used fluka functions. General cleaning. parnum removal.
In theory: use nlostp() in loss code. Add circle aperture type. Interpolate for all aperture types. Use the correct octagon form (to be tested). Don't skip postpr if we lose all particles. Delete some un-used fluka functions. General cleaning. parnum removal.

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