PASS User Manual

PASS (Particle Accelerator Simulation Studio) provides six-dimensional particle tracking using accelerator elements or Twiss transfer maps, with injection, RF systems, collective effects, and beam diagnostics.

Start with Input File Generation (Command-Line Mode) for a Python workflow or Graphical interface for the graphical interface. Before setting beam parameters, read the coordinate and reference conventions in Injection / Particle Generation. Each component page describes its purpose, configuration, physical model, and limits in one place.

Getting started

• Input File Generation (Command-Line Mode)
• JSON input validation
• Graphical interface
• Editable projects
• GUI tools

Beam and transport

• Injection / Particle Generation
• Element
• Twiss Transport (Twiss)
• Aperture
• Bunch Regrouping (ReorganizeBunch)
• Slow extraction (SlowExtraction)

Collective effects

• Longitudinal slicing (Slicer)
• Space-Charge Effect (SpaceCharge)
• Transverse Field Solvers
• WakeField
• Bunch-by-bunch transverse feedback
• Electron Cloud (ElectronCloud)
• Intrabeam Scattering (IBS)
• Beam-Beam Interaction (BeamBeam)

Diagnostics and output

• Monitors and output
• Spectral analysis and frequency maps
• Dynamic-aperture scans