impactx

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Added MAD-X + SXF input files for a reduced thin-multipole model of the Fermilab Booster lattice for space charge studies in ImpactX. For this simplified example, space charge is turned off. A follow-up PR will include the corresponding example with space charge turned on.

Contains a placeholder draft of a script for parsing the SXF input file (testparse.py), to be developed.

• [x] Develop Python script for parsing MAD-X + SXF input file.
• [x] Modify the above Python script to run ImpactX.
• [x] Add parsing of thin dipoles as a special case of multipole m = 0.
• [x] Add "tilt" parameter to Python element specifications where needed.
• [x] Add basic test of execution.
• [x] Double-check all element input definitions.
• [x] Benchmark Twiss functions, tunes, etc.
• [x] Update docs.
• [x] Upload fermi-booster-madx-sxf_corr_new (1.4MB text) to Zenodo
• [ ] Set up CI to download Zenodo data on the fly (as in ML example)

Complete data located on Zenodo: https://doi.org/10.5281/zenodo.11645618

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, and keep them on the Google Drive for later use by us if needed.

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

You can add something similar to:

# copy MAD-X lattice file
file(COPY ${ImpactX_SOURCE_DIR}/examples/fodo/fodo.madx
     DESTINATION ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/FODO.MADX.py)

in examples/CMakeLists.txt for the SXF file to be available during ctest runs.