Merge requests

• Muon particle merge request
  • Action for Leonard: (1) add lifetime as attribute for beam, (2) modify function name to "decay"; OK to merge afterwards
• Numba induced voltage 1turn MR
  • Action for Leonard: add a unittest and compare outputs with and without the numba implementation; OK to merge afterwards
• Request !31
  • Clean up of TrackIteration objecti and unittests
  • OK to merge
• Request !32
  • New object TurnCounter to make an independent counter of the turn and section
  • Integration with the rest of the code still to be done
  • Action for Simon: some proof-of-concept example for a multi-section case; OK to merge afterwards
  • Mapping as a function of longitudinal position as in XSuite?
• Request !38
  • Akima interpolation (from scipy) - piecewise polynomial for PSB magnetic cycle
  • Structural change in the preprocess function in the RingOptions
    • Old unittests still pass, but no new tests added
• Request !41
  • New trackable object MultiTurnInjection, adding beam to the Beam object using the Beam.add_beam() method
  • Beam.ratio and Beam.intensity are changed to mutually updating properties
  • Action for Simon: fix .id of the added beam to have the right range; OK to merge afterwards
  • Action for Birk: add a function for bucket counter/position
  • Action for Birk and Simon: change name to cover both usages
  • OK to merge afterwards
• Request !42
  • Computing the RF waveform in the RFStation for a given time array
  • Helper function, no test for it; OK to merge
• Request !47
  • Bug with multiple RF systems and GPU usage
    
    • 2D array e.g. for the voltage function, sliced in Python and CUDA don't give the same result
    • Does it also happen with multiple sections?
  • At the time of the kick, cast it to a cp.array()
    • Adds about 10% to GPU runtime of the kick
    • Action for Simon L.: Make a more correct GPU implementation and 2D array definitions
      
      • Would require to pass n_turn to the GPU implementation

Separatrix: Fabian's version for multi-harmonic, negative charge; Danilo's version with induced voltage

Action for Fabian: make a merge request on a separate branch for both implementations of the separatrix

Add tags to merge requests so we mark which ones are important to review thoroughly.