OPA  Lattice Design Code

The main purpose of the OPA code is to support the development of electron (positron) storage rings. Emphasis is on visualization and interactivity rather than on elaborate beam dynamics models. OPA is in particular useful for designing high brightness light source lattices, but may be used for transfer lines and other types of lattices as well. Storage ring design with OPA starts from scratch and ends at a bare (i.e. error free) lattice with optimized dynamic apertures, to be passed on to other codes like TRACY, MAD or ELEGANT, which use more complete models.

OPA 4

Documentation

• OPA user guide (pdf)
• "inside OPA" (pdf): the physics part.
• Tutorial (pdf) (and example file from tutorial)

Downloads

• Windows executable (zip)
• Source files (zip) for Lazarus 2.2.0, work both for W10 and Uubuntu.
• A .deb file to install OPA on linux is not yet available (I don't know how to create one, help appreciated), instead you may download the source and install Lazarus to build the executable.
• Document sources user guide (tex.zip), "inside" (tex.zip), tutorial (docx).

Major changes from OPA version 3 to 4

• Transfer from Borland Delphi to Lazarus Free Pascal.
• Include coupling by Edward-Teng formalism.
• Also available for Linux now: tested for xubuntu 20.04 (some debugging going on...)

OPA 3.91d (2017)

The last (more or less) robust Delphi-version, for flat lattices only (no coupling).

Take a Tour of OPA to see if it may be useful for you too!

Read the User guide (PDF) to learn about its capabilities and limitations, how to install and use it and also about some physics behind.

Download the ZIP-file containing the program including example files and user guide. The program is a single executable and should run on any Microsoft Windows system.

This is the offical OPA page of the SynBD (former ADOS) group at PSI. A private mirror page is located HERE, which may be ahead in updates since this official page is not maintained continuously anymore due to my retirement.