Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Geoffrey A. Krafft"'
Publikováno v:
Physical Review Accelerators and Beams, Vol 25, Iss 5, p 054401 (2022)
Inverse Compton scattering sources are finding increasing use as intense sources of high-energy photons. When operated at high field strength, ponderomotive detuning of the scattered emission can lead to decreased source performance. Up to now, the c
Externí odkaz:
https://doaj.org/article/b85692f0e0114d35a46492fae0ed5b15
Autor:
Kirsten Deitrick, Georg H. Hoffstaetter, Carl Franck, Bruno D. Muratori, Peter H. Williams, Geoffrey A. Krafft, Balša Terzić, Joe Crone, Hywel Owen
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 5, p 050701 (2021)
Quasimonochromatic x rays are difficult to produce above 100 keV, but have a number of uses in x-ray and nuclear science, particularly in the analysis of transuranic species. Inverse Compton scattering (ICS) is capable of fulfilling this need, produc
Externí odkaz:
https://doaj.org/article/e919283f643a4125931765d40c8f0f13
Autor:
Balša Terzić, Geoffrey A. Krafft
Publikováno v:
Physical Review Accelerators and Beams, Vol 19, Iss 9, p 098001 (2016)
Rykovanov, Geddes, Schroeder, Esarey and Leemans [Phys. Rev. Accel. Beams 19, 030701 (2016)PRABCJ2469-988810.1103/PhysRevAccelBeams.19.030701; hereafter RGSEL] have recently reported on the analytic derivation for the laser pulse frequency modulation
Externí odkaz:
https://doaj.org/article/5c4737ae15884d08b8bb3d528ae828d8
Combining harmonic generation and laser chirping to achieve high spectral density in Compton sources
Publikováno v:
Physical Review Accelerators and Beams, Vol 19, Iss 4, p 044403 (2016)
Recently various laser-chirping schemes have been investigated with the goal of reducing or eliminating ponderomotive line broadening in Compton or Thomson scattering occurring at high laser intensities. As a next level of detail in the spectrum calc
Externí odkaz:
https://doaj.org/article/cda5468d36cc429d9a9d3d77cfb1c93d
Simultaneous optimization of the cavity heat load and trip rates in linacs using a genetic algorithm
Autor:
Balša Terzić, Alicia S. Hofler, Cody J. Reeves, Sabbir A. Khan, Geoffrey A. Krafft, Jay Benesch, Arne Freyberger, Desh Ranjan
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 17, Iss 10, p 101003 (2014)
In this paper, a genetic algorithm-based optimization is used to simultaneously minimize two competing objectives guiding the operation of the Jefferson Lab’s Continuous Electron Beam Accelerator Facility linacs: cavity heat load and radio frequenc
Externí odkaz:
https://doaj.org/article/0118be01233d4e1f8dfc97aef4571ce6
Autor:
Shahid Ahmed, Geoffrey A. Krafft, Kirsten Deitrick, Subashini U. De Silva, Jean R. Delayen, Mike Spata, Michael Tiefenback, Alicia Hofler, Kevin Beard
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 15, Iss 2, p 022001 (2012)
We have performed three-dimensional simulations of beam dynamics for transverse electromagnetic mode (TEM) type rf deflectors: normal and superconducting. The compact size of these cavities as compared to the conventional TM_{110} type structures is
Externí odkaz:
https://doaj.org/article/242fe277beb142eb93500a953cad92fb
Autor:
GEOFFREY A. KRAFFT
Publikováno v:
The Physics and Applications of High Brightness Electron Beams.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::add9599c57079babfefedb4ae0b90c66
https://doi.org/10.1142/9789812772176_0011
https://doi.org/10.1142/9789812772176_0011
Autor:
Jean-Claude Denard, Geoffrey A. Krafft
Publikováno v:
AIP Conference Proceedings.
In this paper, the electron beam diagnostics developed for recirculating electron accelerators will be reviewed. The main novelties in dealing with such accelerators are: to have sufficient information and control possibilities for the longitudinal p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4d6988d9b992be08897bd3f6a2b9e33
https://doi.org/10.1063/1.1524395
https://doi.org/10.1063/1.1524395
Publikováno v:
SIAM Journal on Applied Mathematics. 43:1390-1399
In an earlier paper, closed hydrodynamic equations were derived with possible application to the simulation of beam plasmas relevant to designs of heavy ion accelerators for inertial confinement fusion energy applications. The closure equations invol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2cecbf97d4afcf02075415f2a1645a2
https://doi.org/10.1137/0143092
https://doi.org/10.1137/0143092