Zobrazeno 1 - 10
of 196
pro vyhledávání: '"Gennady Stupakov"'
Publikováno v:
Physical Review Accelerators and Beams, Vol 26, Iss 3, p 030701 (2023)
Accurate measurements of the x-ray pulse duration produced by x-ray free-electron lasers (XFELs) typically rely on longitudinal electron beam phase space diagnostics, e.g., an x-band transverse deflecting cavity (XTCAV). An alternative group of metho
Externí odkaz:
https://doaj.org/article/675bf5d13e3b404d9e677aa159f1dbfa
Autor:
Adham Naji, Gennady Stupakov
Publikováno v:
Physical Review Accelerators and Beams, Vol 25, Iss 12, p 123501 (2022)
Highly overmoded iris-line structures carry desirable features for the efficient transportation of THz radiation over long distances. Previous studies have analyzed the iris line, modeled approximately as a long open-resonator structure with thin scr
Externí odkaz:
https://doaj.org/article/4cbf4accdd9046ddb082a52c14e0ad8a
Publikováno v:
Physical Review Accelerators and Beams, Vol 25, Iss 4, p 043501 (2022)
Vector field analysis is presented for a highly overmoded iris-line structure that can act as a medium of transportation for THz radiation. The axisymmetric structure is capable of supporting hybrid modes with desirable features such as low propagati
Externí odkaz:
https://doaj.org/article/0487a13540ea458380bba174f044511f
Autor:
Gennady Stupakov
Publikováno v:
Physical Review Accelerators and Beams, Vol 25, Iss 1, p 014401 (2022)
When a relativistic beam moves along a curved trajectory it loses energy on coherent radiation. The effect of this radiation on the beam dynamics is described by the so call coherent synchrotron radiation (CSR) longitudinal wake field. Among differen
Externí odkaz:
https://doaj.org/article/0856857e03cf47909267e0a2f52e5873
Autor:
Gennady Stupakov, Jingyi Tang
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 9, p 099901 (2021)
Externí odkaz:
https://doaj.org/article/64299fbd6c014e1db91b3b55c15cecf7
Autor:
Gennady Stupakov, Jingyi Tang
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 2, p 020701 (2021)
Radiation reaction force in a relativistic beam, also known as the CSR wakefield, is often computed using a 1D model of a line charge. While this model can serve as a useful tool for a quick calculation, in many cases its accuracy is not sufficient.
Externí odkaz:
https://doaj.org/article/5564d5abd3764c5bab973a0d5d144630
Autor:
Gennady Stupakov
Publikováno v:
Physical Review Accelerators and Beams, Vol 23, Iss 9, p 094401 (2020)
In this paper, we derive the longitudinal and transverse resistive wall impedance for a beam traveling in a round pipe with v
Externí odkaz:
https://doaj.org/article/74529eb928ba404ba4e0ced6c4dc738e
Autor:
Johann Zemella, Karl Bane, Alan Fisher, Marc Guetg, Zhirong Huang, Richard Iverson, Patrick Krejcik, Alberto Lutman, Timothy Maxwell, Alexander Novokhatski, Gennady Stupakov, Zhen Zhang, Mark Harrison, Marcos Ruelas
Publikováno v:
Physical Review Accelerators and Beams, Vol 20, Iss 10, p 104403 (2017)
The RadiaBeam/SLAC dechirper, a structure consisting of pairs of flat, metallic, corrugated plates, has been installed just upstream of the undulators in the Linac Coherent Light Source (LCLS). As a dechirper, with the beam passing between the plates
Externí odkaz:
https://doaj.org/article/eed5988dc7eb44eca840e1d8d40792d1
Publikováno v:
Physical Review Accelerators and Beams, Vol 20, Iss 5, p 054403 (2017)
We perform Joule power loss calculations for a flat dechirper. We consider the configurations of the beam on-axis between the two plates—for chirp control—and for the beam especially close to one plate—for use as a fast kicker. Our calculations
Externí odkaz:
https://doaj.org/article/c277b6f80ad24e40a9ec4870f2e64ce6
Publikováno v:
Physical Review Accelerators and Beams, Vol 20, Iss 4, p 040703 (2017)
In a free-electron laser, a transverse momentum offset (or “kick”) results in an oscillation of the centroid of the electron beam about the undulator axis. Studying the influence of this effect on the free-electron laser (FEL) interaction is impo
Externí odkaz:
https://doaj.org/article/ad0f68728a7a47a29232e5ef4cb59e9d