Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Ryan Lindberg"'
Autor:
Sara Dastan, Demin Zhou, Takuya Ishibashi, Emanuel Karantzoulis, Simone Di Mitri, Ryan Lindberg
Publikováno v:
Physical Review Accelerators and Beams, Vol 27, Iss 10, p 104401 (2024)
High-frequency longitudinal impedances, particularly at wavenumbers k≫1/σ_{z} (where σ_{z} is the bunch length), can drive microwave instability and potentially limit the performance of modern low-emittance electron storage rings. In such rings,
Externí odkaz:
https://doaj.org/article/2b38fa3dd8aa451884e239d817153355
Autor:
Ryan Lindberg, Michael Borland
Publikováno v:
Physical Review Accelerators and Beams, Vol 26, Iss 11, p 114001 (2023)
We present a framework with which to analyze the effects of magnetic fringe fields. The theory defines the fringe field to be the transition between two regions of nearly constant field, and can incorporate constant multipoles in the magnet body. We
Externí odkaz:
https://doaj.org/article/279d28b474c241d08e1aba552d7ed5f5
Publikováno v:
Physical Review Accelerators and Beams, Vol 26, Iss 3, p 030702 (2023)
Modern electron storage rings produce bright x rays via spontaneous synchrotron emission, which is useful for a variety of scientific applications. The x-ray free-electron laser oscillator (XFELO) has the potential to amplify this output, both in ter
Externí odkaz:
https://doaj.org/article/7a9ad786b4bd497ea7166986fb31dbcf
Publikováno v:
Physical Review Accelerators and Beams, Vol 22, Iss 3, p 032802 (2019)
We describe a benchmark study of collective and nonlinear dynamics in the Advanced Photon Source storage ring. A 1-mm long bunch was assumed in the calculation of wakefield and element by element particle tracking with distributed wakefield component
Externí odkaz:
https://doaj.org/article/bc4926714648489e9a24524dc2268277
Autor:
Zhen Zhang, Ryan Lindberg, William M. Fawley, Zhirong Huang, Jacek Krzywinski, Alberto Lutman, Gabriel Marcus, Agostino Marinelli
Publikováno v:
Physical Review Accelerators and Beams, Vol 19, Iss 5, p 050701 (2016)
Measurements of the multishot-averaged, soft x-ray, self-seeding spectrum at the LCLS free-electron laser often have a pedestal-like distribution around the seeded wavelength, which limits the spectral purity and can negatively affect some user appli
Externí odkaz:
https://doaj.org/article/4ae0fd9b394d4b20910ab4ffd571b2b7
Autor:
Yuri Shvyd’ko, Ryan Lindberg
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 15, Iss 10, p 100702 (2012)
The spatiotemporal response of crystals in x-ray Bragg diffraction resulting from excitation by an ultrashort, laterally confined x-ray pulse is studied theoretically. The theory presents an extension of the analysis in symmetric reflection geometry
Externí odkaz:
https://doaj.org/article/fcd82457b60243cf896744f9585fa997
Autor:
Deming Shu, Steven Kearney, Jayson Anton, Sheikh Mashrafi, Yuri Shvydko, Ryan Lindberg, William Jansma, William Toter, Xianbo Shi, Lahsen Assoufid, Marion White, Tien Fak Tan, Diling Zhu, Georg Gassner, Maria Alessandra Montironi, Joe Delong, Wayne Lewis, Namrata Balakrishnan, Franz-Josef Decker, Heinz-Dieter Nuhn, Gabriel Marcus, Zhirong Huang, Kwang-Je Kim
Publikováno v:
Journal of Physics: Conference Series. 2380:012029
With forming of an X-ray cavity with a set of narrow bandwidth diamond Bragg crystals and by storing and recirculating the output of an amplifier in an X- ray cavity so that the X-ray pulse can interact with following fresh electron bunches over many
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61c571a6929e233771e19e89fa248ac9
https://doi.org/10.1088/1742-6596/2380/1/012029
https://doi.org/10.1088/1742-6596/2380/1/012029
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 10, p 104801 (2021)
Impedance modeling for accelerator applications has improved over the years, largely as a result of advances in simulation capabilities. While this modeling has been successful in reproducing certain measurements, it is still a significant challenge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5d385bf5121a5aa9618ee6aeffb1b78
https://doi.org/10.1103/physrevaccelbeams.24.104801
https://doi.org/10.1103/physrevaccelbeams.24.104801
Autor:
Dongwook Lee, Ryan Lindberg, C. Graziani, G. Navrotski, N. Cook, Jeffrey Dooling, Youngjun Lee, A. Grannan, Michael Borland
Publikováno v:
2021 IEEE International Conference on Plasma Science (ICOPS).
Machine protection at the Advanced Photon Source Upgrade (APS-U) storage ring (SR) will necessitate whole beam dumps capable of absorbing energy from 200 mA, 6 GeV, ultra-low emittance beams 1 . These beams will deliver acute doses of 30 MGy within 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e5bc43a29de54e083c259b214c3164a
https://doi.org/10.1109/icops36761.2021.9588555
https://doi.org/10.1109/icops36761.2021.9588555
Autor:
Ryan Lindberg
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 2, p 024402 (2021)
We present a theory that can compute the transverse coupled-bunch instability growth rates at any chromaticity and for any longitudinal potential provided only that the long-range wakefield varies slowly over the bunch. The theory is expressed in ter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4fc17dacfed5d052ebb61d35997e04d
https://doaj.org/article/696b74347a7f4b2db270c5a8bcf7afaf
https://doaj.org/article/696b74347a7f4b2db270c5a8bcf7afaf