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Thanks a lot for the explanation,

Dear Michael, Thank you very much for your reply, and my apologies for the very late reply. I had trouble accessing the forum several times. I should mention that no initial 𝑧−𝛿 correlation was defined in my input distribution, please see the attached file. Also, I repeated the simulations with sigm...

Dear Michael, I have a question regarding the longitudinal behavior I observe in ELEGANT simulations. I compared two versions of the same lattice: Case 1: Four dipoles active (first dipole with a 5° bend) → R56 ≈ 1.9×10⁻⁶, bunch length ≈ 149 µm. Case 2: All dipole bending angles set to 0°, but the s...

Dear Michael, Thanks for your reply. As you meant, the beam in a quadrupole focuses in one direction and defocuses in the other. This phenomenon arises from the forces acting on the beam, which are directed into or out of the magnet center, while the field gradient maintains the same sign in both th...

Dear Michael, I have a periodic quadrupole magnet and I am tracking the 400 MeV electron beam through the 3D magnetic field map using Astra, BMAD, and ELEGANT. - In ELEGANT, BMXYZ and Ftable commands provide consistent results, but the intermediate Twiss parameters within the magnet are missed. As I...