Chad Mitchell

A few more: - Beam size in each variable (x,px,y,py,t,pt) - Centroid offset (from reference particle) in each variable - Emittance in each dimension (x-px), (y-py), (t-pt) - Slice diagnostics,...

I'm not sure about this approach. My concern is how best to handle the longitudinal variation of the charge density, and in the resulting transverse fields. The fixed Z -...

For clarification: Ji's symplectic spectral solver does not use open boundaries. Instead, it assumes a rectangular conducting boundary. It is best for cases in which the (2D) charge density is...

I think it's good to remove `ref_beta_gamma` from `reduced_beam_characteristics`, since that information is duplicated in the `ref_particle` text output, and it is a "reference" quantity. However, it would be good...

There are a large number of MAD-X files here that are not used by ImpactX. Here, we use only the SXF file. I am tempted to delete these for clarity,...

Need to update paths to the SXF file "fermi-booster-madx-sxf_corr_new" to allow proper access from Python script during CI.

In general, I would suggest we avoid mixing beam particle data and reference particle data in the output. The organization/philosophy of the code is such that these objects are treated...

Verifying the evolution of the reference particle is a good check. However, in many cases (all the straight magnetic elements), all components of the momentum (including pt) will be unchanged....

Item 1. (linear version of the combined function bend) is addressed in PR #387.

[ImpactX_MADX_Twiss_Dogleg_Comparison.pdf](https://github.com/user-attachments/files/16641062/ImpactX_MADX_Twiss_Dogleg_Comparison.pdf)