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CHANGELOG.md

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Changelog

All notable changes to OCELOT will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning. (Not yet, maybe it won't. Versioning is based on year.month.day.

Unreleased

Changed

  • The CSR class now gives an explicit logging error when failing in arcline and a more useful explanation. This error often occurs because the user has mixed CSR for vertical bends with horizontal bends.
  • Navigator.add_physics_process should now be a lot faster by doing fewer unnecessary deepcopies.

Added

  • New properties on ParticleArrray, beta and gamma, providing the relativistic properties of each particle.
  • New method sort on ParticleArray for possibly sorting in place with respect to one of the properties or functions (e.g. beta, x, p0c, etc.) returning the indices that sort the ParticleArray.
  • Implementation of __len__ for ParticleArray which simply returns the number of particles it contains. Identical in function to size.
  • get_envelope now also calculates the normalised emittances emit_xn and emit_yn, not just the geometric ones, as was previously the case.
  • Added overwrite_progress kwarg to cpbd.track.track function which allows tracking progress to optionally be written on new lines rather than overwritten repeatedly using carriage returns. This is particularly useful when logging the output of a running ocelot simulation to avoid extremely long lines and unreadable log files.
  • Inactive processes in Navigator instances are now stored in the inactive_proccses attribute. This way processes attached to a Navigator remain accessible in that for the lifetime of the Navigator.
  • New ParameterScanner class in cpbd.track for scanning arbitrary parameters in parallel (either using multiprocessing mpi4py). For example one might scan different compression schemes. Results are compiled into a single hdf5 file.
  • insert_markers_by_predicate now has optional arbitrary name suffixes for the markers
  • Twiss.from_series allows for Twiss instances to be made from pd.Series (or a dictionary for example).
  • ParticleArray slicing: parray[10:100] returns a ParticleArray instance with slices rparticles and q_array.
  • remove_coupler_kick convenience method for Cavity class
  • Integrated quad strengths for k1 and k2 convenience getters/setters (k1l and `k2l).
  • Added new method Navigator.add_physics_processes for adding multiple physics processes at the same time. This will be a lot fastwe when lots of physics processes are to be added.

6fdd98a24d013057498abd8e9ccf734939ef30e7

  • Navigator.jump_to method allowing a Navigator instance to jump to arbitrary points in z along the magnetic lattice. Useful as it does not require modifying the underling beamling to achieve equivalent behaviour.
  • new __repr__ methods for some common physics processes: CSR, SmoothBeam, SpaceCharge and WakeTable.
  • SmoothBeam mslice attribute can now be set in the __init__.
  • extract_slice method on SliceParameters instances
  • modified the 'MagneticLattice.transfer_maps()' method. When using the 'output_at_each_step=True' flag, the method returns (Bs, Rs, Ts, S), where 'S' is a list of coordinates after each transfer map.
  • New WakeTable3 and Wake3 class for third order Taylor expansion of wakefield tracking.
  • New wake table for the wakefields of parallel plate structure based on analytical results, WakeTableParallelPlate_origin, WakeTableParallelPlate, WakeTableParallelPlate3_origin, WakeTableParallelPlate3. The waketables with origin use point charge wake at the vicinity of the drive particle, which is the upper limit for wake. The other two waketables contain exponential decay term. The waketables with 3 provide third order Taylor expansion and should be used with Wake3.

6fdd98a24d013057498abd8e9ccf734939ef30e7

Fixed

  • fixed bugs in matching function if Drift length is in list of variables.

Removed

  • None yet.

Deprecated

  • None yet.