PyHEADTAIL Meeting #20

Europe/Zurich
6/2-004 (CERN)

6/2-004

CERN

40
Show room on map
Kevin Shing Bruce Li (CERN)

Draft - Minutes for the PyHEADTAIL part:

  • PHEADTAIL used for non0-liear dynamics and modukation effects
  • Natalia explained how she implemnted non-liear effects; a linear map was used in combination with single non-liear elems in thin lens approximation
  • She went through the setting up of simulations she had to do for her studies
  • Natalia shows some plots of results using non-linear elements in PyHEADTAIL.
  • She wnet through details of how to choose the values to parameterize the non-linear elements using in PyHEDATAIL. Many alues are found empirically by setting values and checking whether the resulted effects feature observatiosn that one wants to see. A simulation takes less than 5 seconds.
  • Pure detuning effects are also used to show a better defined phase space. Extra detuning can be applied without enahnceing the resonance.
  • She showed some examples of different initializations for better samplig of the phase space
  • Natalia then showed some results she obtained using PyHEADTAIL to study modulation effects.
  • Nataila stressed for plotting the phase space in presence of modulation, it is important to make a plot only every modulation period, otherwise phase spaces blur out as different sections fall on top of each other.
  • FMAs need more particles and other initial distributions
  •  

Qeustions:

  • Any kimitation Extra efects that could be interestng?
  • How muc longer does the modulation take?
  •  Typical time scales of modulations?
  • FMA initial distributions  - with on-linear sampling.
  • 80**2 and 1024 * 50 //
There are minutes attached to this event. Show them.
    • 1
      Matters arising
      Speaker: Kevin Shing Bruce Li (CERN)
    • 2
      PyHEADTAIL for study of lattice errors and resonances - modulation effects in the SPS
      Speaker: Natalia Triantafyllou (Aristotle University of Thessaloniki (GR))
    • 3
      Round Table & AOB
      Speaker: Kevin Shing Bruce Li (CERN)