Zobrazeno 1 - 7
of 7
pro vyhledávání: '"T. H. B. Persson"'
Autor:
E. H. Maclean, R. Tomás, F. S. Carlier, M. S. Camillocci, J. W. Dilly, J. Coello de Portugal, E. Fol, K. Fuchsberger, A. Garcia-Tabares Valdivieso, M. Giovannozzi, M. Hofer, L. Malina, T. H. B. Persson, P. K. Skowronski, A. Wegscheider
Publikováno v:
Physical Review Accelerators and Beams, Vol 22, Iss 6, p 061004 (2019)
In 2017, optics commissioning strategy for low-β^{*} operation of the CERN Large Hadron Collider (LHC) underwent a major revision. This was prompted by a need to extend the scope of beam-based commissioning at high energy, beyond the exclusively lin
Externí odkaz:
https://doaj.org/article/8f493f60e0f940318951231e8387a8b9
Publikováno v:
Physical Review Accelerators and Beams, Vol 22, Iss 3, p 031002 (2019)
Diagnostics of nonlinear beam dynamics has become more important for the LHC as it advances into increasingly challenging regimes of operation, as well as for the High Luminosity LHC where machine nonlinearities will have a significantly larger impac
Externí odkaz:
https://doaj.org/article/998b2d71f73e45a2acda9c04ec573fdc
Publikováno v:
Physical Review Accelerators and Beams, Vol 19, Iss 7, p 071003 (2016)
Recent observations in the LHC point to the existence of an amplitude dependent closest tune approach. However this dynamical behavior and its underlying mechanism remain unknown. This effect is highly relevant for the LHC as an unexpected closest tu
Externí odkaz:
https://doaj.org/article/f58a415b861a4fb8b51f7f03d4caa624
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 18, Iss 12, p 121002 (2015)
Nonlinear magnetic errors in low-β insertions can contribute significantly to detuning with amplitude, linear and nonlinear chromaticity, and lead to degradation of dynamic aperture and beam lifetime. As such, the correction of nonlinear errors in t
Externí odkaz:
https://doaj.org/article/7ce39cbf79aa4da8a15968ca2640ac16
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 17, Iss 8, p 081002 (2014)
The nonlinear dynamics of a circular accelerator such as the Large Hadron Collider (LHC) may significantly impact its performance. As the LHC progresses to more challenging regimes of operation it is to be expected that the nonlinear single particle
Externí odkaz:
https://doaj.org/article/5a1a5c00de304205bafbc9b14f4ca326
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 16, Iss 8, p 081003 (2013)
In this article we present the measurement and correction of the chromatic coupling in the LHC. The transverse coupling is calculated from turn-by-turn data, exciting the beam with an ac dipole. By adjusting the momentum relative to the reference ene
Externí odkaz:
https://doaj.org/article/bf4a1169cb614826a1753bb513b84ffb
Autor:
R. Tomás, T. Bach, R. Calaga, A. Langner, Y. I. Levinsen, E. H. Maclean, T. H. B. Persson, P. K. Skowronski, M. Strzelczyk, G. Vanbavinckhove, R. Miyamoto
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 15, Iss 9, p 091001 (2012)
The LHC is currently operating with a proton energy of 4 TeV and β^{*} functions at the ATLAS and CMS interaction points of 0.6 m. This is close to the design value at 7 TeV (β^{*}=0.55 m) and represented a challenge for various aspects of the mach
Externí odkaz:
https://doaj.org/article/35f1eb50d13349ad994a7b0c8337bfc8