Research on Electron Pulse Compression Using a Multi-Stage Alpha Magnet for the ECANS

This dataset supports the study of multi-stage α‑magnet bunch compression for the East China Accelerator Neutron Source (ECA), covering both magnetostatic field calculation and beam dynamics simulation.A 2D α‑magnet model is established in Poisson with 30 875 ampere‑turns coil excitation.The on‑axis axial magnetic field is extracted as the field input for TraceWin particle tracking simulation. A 3D CST model equivalently scaled from the 2D geometry is used for cross‑validation. 24.am: Poisson magnetostatic input filemagneticfield.txt:field distribution ces_new.old.ini: TraceWin main simulation configuration filetracewin.txt: TraceWin execution script for particle tracking controltrajectory.txt: representative particle trajectory data (position and momentum)r56_t566_path_length.xlsx: cumulative flight path lengths of r56 and t566 particles under different α‑magnet stage counts, with all values directly extracted from TraceWin outputs