Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Robert D. Ryne"'
Publikováno v:
Physical Review Accelerators and Beams, Vol 23, Iss 6, p 064002 (2020)
The Integrable Optics Test Accelerator (IOTA) is a novel storage ring at Fermi National Accelerator Laboratory designed (in part) to investigate the dynamics of beams in the presence of highly nonlinear transverse focusing fields that generate integr
Externí odkaz:
https://doaj.org/article/fc7d9ae0da994b3599c9f7db6e8fa133
Autor:
Bruce E. Carlsten, Kip A. Bishofberger, Leanne D. Duffy, Steven J. Russell, Robert D. Ryne, Nikolai A. Yampolsky, Alex J. Dragt
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 14, Iss 5, p 050706 (2011)
The flat-beam transform (FBT) for round symmetric beams can be extended using the concept of eigenemittances. By tailoring the initial beam conditions at the cathode, including adding arbitrary correlations between any two dimensions, this extension
Externí odkaz:
https://doaj.org/article/db0067971fca4d52adb5a7f7759d5cb7
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 10, Iss 12, p 129901 (2007)
Externí odkaz:
https://doaj.org/article/85b4fa58998d46ffbb67f312b54b4c55
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 9, Iss 4, p 044204 (2006)
In this paper, we present a three-dimensional quasistatic model for high brightness beam dynamics simulation in rf/dc photoinjectors, rf linacs, and similar devices on parallel computers. In this model, electrostatic space-charge forces within a char
Externí odkaz:
https://doaj.org/article/989d5147da5647b18b06fe04c4a778b2
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 5, Iss 10, p 104402 (2002)
In this paper we present a new approach, based on a shifted Green function, to evaluate the electromagnetic field in a simulation of colliding beams. Unlike a conventional particle-mesh code, we use a method in which the computational mesh covers onl
Externí odkaz:
https://doaj.org/article/bba5d81e264f418b9bc33679a59799ea
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 5, Iss 6, p 064201 (2002)
Macroparticle simulation plays an important role in modern accelerator design and operation. Most linear rf accelerators have been designed based on macroparticle simulations using longitudinal position as the independent variable. In this paper, we
Externí odkaz:
https://doaj.org/article/0ddb513041f8434a9e1a3a536f90ecc2
Autor:
Ji Qiang, Robert D. Ryne
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 3, Iss 6, p 064201 (2000)
In this paper we present a study of beam halo based on a three-dimensional particle-core model of an ellipsoidal bunched beam in a constant focusing channel including the effects of nonlinear rf focusing. For an initially mismatched beam, three linea
Externí odkaz:
https://doaj.org/article/02e61ae6474148f493dd4911b6396719
Measures of discrepancy between probability distributions (statistical distance) are widely used in the fields of artificial intelligence and machine learning. We describe how certain measures of statistical distance can be implemented as numerical d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16e2e607a0052aecf0f26c8be428c9c1
Autor:
Chad Mitchell, Yue Hao, Jean-Luc Vay, Alexander Scheinker, Ji Qiang, Robert D. Ryne, Cho-Kuen Ng, Georg Hoffstaetter, E. Stern, M. H. Langston, D. Winklehner, Christopher Mayes, N. M. Cook, Chengkun Huang, H. Zhang, Martin Berz, A. Huebl, David Sagan
Publikováno v:
Journal of Instrumentation, vol 16, iss 10
The ever increasing demands placed upon machine performance have resulted in the need for more comprehensive particle accelerator modeling. Computer simulations are key to the success of particle accelerators. Many aspects of particle accelerators re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1b95c35a98d5b980b5927432e1303ba
http://arxiv.org/abs/2108.11027
http://arxiv.org/abs/2108.11027
Rapidly converging chaos indicator for studying dynamic aperture in a storage ring with space charge
Publikováno v:
Physical Review Accelerators and Beams, vol 23, iss 8
Physical Review Accelerators and Beams, Vol 23, Iss 8, p 084601 (2020)
Physical Review Accelerators and Beams, Vol 23, Iss 8, p 084601 (2020)
The determination of dynamic aperture in storage rings and colliders is a numerically intensive procedure. When realistic space-charge forces come into consideration, the numerical load becomes even heavier. Furthermore, dynamic aperture estimation u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf76ce95bfe62924037206f51d95ad9e
https://doi.org/10.1103/physrevaccelbeams.23.084601
https://doi.org/10.1103/physrevaccelbeams.23.084601