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Xtrack version 0.9.0
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@giadarol giadarol released this 27 Feb 21:54
· 5341 commits to main since this release
v0.9.0
0dfa694

Changes:

  • Synchrotron radiation:
    • Corrected dependence on energy deviation in average and quantum modes.
    • Checked damping times and equilibrium emit against the emit module of MAD-X .
    • Added optional computation of damping times and energy loss in Tracker.twiss.
    • Synchrotron radiation modelling can be configured for the entire line using Line.configure_radiation(...).
    • Random number generator is automatically initialised by the tracker.track(particles) if radiation is activated through Line.configure_radiation(...) .
  • Changed sign convention for cavity voltage if reference particle has negative charge.
  • Added example and tests for CLIC Damping ring.
  • Disabled automatic symplectification in Tracker.twiss (found to degrade accuracy on vertical dispersion).
  • Tracker.twiss now returns additional data:
    • Scalars: T_rev, circumference, betz0.
    • Along the beam line: delta, psigma and zeta coordinates of the 6D closed orbit.
    • Optionally: damping_constants, partition_numbers and energy loss from radiation (see above).
  • Tuned closed-orbit search algorithm. Info on numpy.fsolve convergence attached to returned particle object.
  • Tracker.twiss checks that one-turn matrix is well defined
  • Names of keyword arguments passed to beam element constructors are now checked (an exception is raised for unexpected names, e.g. typos).
  • Tracker verifies that elements containing references to external data are allocated in the same buffer as the tracker.
  • Fix in LossLocationRefinement (correct number of interpolated apertures).
  • Simplified import of MAD-X expressions. Corrected management of expression in the presence of errors.
  • Updated all examples.
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