JACoW logo

Journals of Accelerator Conferences Website (JACoW)

JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.


BiBTeX citation export for THBP16: Emittance Growth From Electron Clouds Forming in the LHC Arc Quadrupoles

@inproceedings{paraschou:hb2023-thbp16,
  author       = {K. Paraschou and H. Bartosik and L. Deniau and G. Iadarola and E.H. Maclean and L. Mether and Y. Papaphilippou and T. Pieloni and J.M.B. Potdevin and G. Rumolo and R. Tomás García},
% author       = {K. Paraschou and H. Bartosik and L. Deniau and G. Iadarola and E.H. Maclean and L. Mether and others},
% author       = {K. Paraschou and others},
  title        = {{Emittance Growth From Electron Clouds Forming in the LHC Arc Quadrupoles}},
% booktitle    = {Proc. HB'23},
  booktitle    = {Proc. 68th Adv. Beam Dyn. Workshop High-Intensity High-Brightness Hadron Beams (HB'23)},
  eventdate    = {2023-10-09/2023-10-13},
  pages        = {487--490},
  paper        = {THBP16},
  language     = {english},
  keywords     = {simulation, emittance, resonance, optics, electron},
  venue        = {Geneva, Switzerland},
  series       = {ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams},
  number       = {68},
  publisher    = {JACoW Publishing, Geneva, Switzerland},
  month        = {04},
  year         = {2024},
  issn         = {2673-5571},
  isbn         = {978-3-95450-253-0},
  doi          = {10.18429/JACoW-HB2023-THBP16},
  url          = {https://jacow.org/hb2023/papers/thbp16.pdf},
  abstract     = {{Operation of the Large Hadron Collider with proton bunches spaced 25 ns apart favours the formation of electron clouds. In fact, a slow emittance growth is observed in proton bunches at injection energy (450 GeV), showing a bunch-by-bunch signature that is compatible with electron cloud effects. The study of these effects is particularly relevant in view of the planned HL-LHC upgrade, which relies on significantly increased beam intensity and brightness. Particle tracking simulations that take into account both electron cloud effects and the non-linear magnetic fields of the lattice suggest that the electron clouds forming in the arc quadrupoles are responsible for the observed degradation. In this work, the simulation results are studied to gain insight into the mechanism which drives the slow emittance growth. Finally, it is discussed how optimising the optics of the lattice can allow the mitigation of such effects.}},
}