Xcoll release 0.5.0

What's Changed

• Two new elements:
  • BlowUp: to add random kicks to a beam. Two modes of operation are possible; use_individual_kicks=False (default), where each particle gets the same kick (though different turn-by-turn), and use_individual_kicks=True, where each particle gets a different kick. The latter option is not realistic but provides a smoother blow-up (which is sometimes easier to work with in simulation). The class has an install classmethod to instantiate the element and install it in a line in one go (returning the instance). If the element is instantiated and installed manually, the fields line and name need to be set to have access to the twiss. A method calibrate_by_emittance is provided which sets the blow-up such that the beam gets shifted beyond 5 sigma in roughly 1000 turns. Finally, the field amplitude allows to scale this calibration.
  • EmittanceMonitor: a monitor that works on any Context by accumulating (using AtomicAdd) the 6D covariances of the physical coordinates. It provides the fields gemitt_x, gemitt_y, gemitt_zeta, nemitt_x, nemitt_y, nemitt_zeta, gemitt_I, gemitt_II, gemitt_III, nemitt_I, nemitt_II, and nemitt_III. The class has an install classmethod to instantiate the element and install it in a line in one go (returning the instance). If the element is instantiated and installed manually, the field line needs to be set to have access to the reference particle.
  • Added examples and test for those elements
• Fixed bug by @simoneotelie in #84: active inside EverestBlock was ignored
• Pencil crystal by @chiaramaccani in #87
• Installing collimators by family is now possible.
• Particle fields in InteractionRecord have been renamed (x_before, x_after, etc)
• Record flags in InteractionRecord have been renamed (record_impacts, record_exits, record_scatterings)
• Fixed crystal geometry for right-sided crystals
• Added views to BaseCollimator to get the s position of the jaw corners

Develop Updates

• Renamed collimators_src folder as elements_src
• Bugfix when setting gap_R
• Several bugfixes in InteractionRecord, and made things like io_buffer more robust
• Two bugfixes in lossmap:
  • particles lost in an aperture directly after a crystal should stay in that aperture (as the crystal is too small to follow the same logic as the regular collimators in this situation)
  • Typo in line_is_reversed
• Better tests for BlackAbsorber
• Adapted impacts tests, however, exit tests fail (need to investigate)
• Materials database in Everest slightly adapted to be more flexible (SixTrack <-> Xcoll)
• Tracking Everest would fail for a material with the _only_mcs flag. This is fixed now, but the logic should be rethought

Full Changelog: v0.4.0...v0.5.0