Three-dimensional quasistatic model for high brightness beam dynamics simulation

Qiang, Ji; Lidia, S.; Ryne, Robert D.; Limborg-Deprey, C.

doi:10.1103/physrevstab.9.044204

Cited by 153 publications

(70 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The spatio-temporal electron beam profile is obtained by a simulation of the entire LCLS accelerator using Impact-T and Elegant codes. 25 The initial electric field at the Be foil is transformed into a frequency-domain profile and propagated using Laguerre-Gaussian modes through the optical setup, including diffraction effects from the finite size of the foil. These simulations calculate the full extracted spatio-temporal THz field at the focus of the optical setup, predicting a radially polarized beam with zero intensity on axis, reflecting the relativistic Coulomb field of the electron bunch.…”

Section: B Simulationsmentioning

confidence: 99%

Intense terahertz pulses from SLAC electron beams using coherent transition radiation

Fisher

Goodfellow

et al. 2013

Review of Scientific Instruments

143

View full text Add to dashboard Cite

SLAC has two electron accelerators, the Linac Coherent Light Source (LCLS) and the Facility for Advanced Accelerator Experimental Tests (FACET), providing high-charge, high-peak-current, femtosecond electron bunches. These characteristics are ideal for generating intense broadband terahertz (THz) pulses via coherent transition radiation. For LCLS and FACET respectively, the THz pulse duration is typically 20 and 80 fs RMS and can be tuned via the electron bunch duration; emission spectra span 3-30 THz and 0.5 THz-5 THz; and the energy in a quasi-half-cycle THz pulse is 0.2 and 0.6 mJ. The peak electric field at a THz focus has reached 4.4 GV/m (0.44 V/Å) at LCLS. This paper presents measurements of the terahertz pulses and preliminary observations of nonlinear materials response.

show abstract

Section: B Simulationsmentioning

confidence: 99%

Intense terahertz pulses from SLAC electron beams using coherent transition radiation

Fisher

Goodfellow

et al. 2013

Review of Scientific Instruments

143

View full text Add to dashboard Cite

show abstract

“…Without space charge the electron bunch is compressed to 63.3fs RMS and 28.5fs FWHM, with a peak current of ∼ 200A. 1 However, with SC included, the bunch is over compressed and has a flat top, the peak current falls to ∼58A.…”

Section: Simulation Resultsmentioning

confidence: 99%

Longitudinal compression and transverse matching of electron bunch for external injection LPWA at ESCULAP

Wang

Baynard

Bruni

et al. 2018

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

We present theoretical and numerical studies of longitudinal compression and transverse matching of electron bunch before injecting into the Laser-plasma Wake Field Accelerator (LWFA) foreseen at the ESCULAP project in ORSAY. Longitudinal compression is performed with a dogleg chicane, the chicane is designed based on theory of beam optics, beam dynamics in dogleg is studied with ImpactT [1] and cross checked with CSRtrack [2], both 3D space charge (SC) and coherent synchrotron radiation (CSR) effects are included. Simulation results show that the energy chirp at the dogleg entrance should be smaller than the nominal optic design value, in order to compensate the negative energy chirp increase caused by longitudinal SC, while CSR can be ignored in our case. With an optimized configuration, the electron bunch (∼10MeV, 10pC) is compressed from 0.9ps RMS to 70fs RMS (53fs FWHM), with a peak current of 152A. Transverse matching is realized with a doublet and a triplet, they are matched with Madx and the electron bunch is tracked with ImpactT, simulation results show little difference with the nominal design values, that is due to the SC effect. Finally, by simply adjusting the quadrupole strength, a preliminary optimized configuration has been achieved, that matches the Courant-Snyder (C-S) parameters to α x = 0.01, α y = −0.02, β x = 0.014m, β y = 0.012m at the plasma entrance.

show abstract

“…In regard to publications, the BD and AA codes have been used in more than 50 refereed publications since the project's inception. This includes three articles in Nature (in the AA area), 16 The list of facilities that are using AST codes includes nearly every major present and proposed accelerator project in the USA, several international projects, as well as several small experiments and design efforts. The list of facilities and projects includes:…”

Section: Impact Of Scidac On Present and Future Accelerator Facilitiesmentioning

confidence: 99%

Extraordinary tools for extraordinary science: the impact of SciDAC on accelerator science and technology

Ryne

2006

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Abstract. Particle accelerators are among the most complex and versatile instruments of scientific exploration. They have enabled remarkable scientific discoveries and important technological advances that span all programs within the DOE Office of Science (DOE/SC). The importance of accelerators to the DOE/SC mission is evident from an examination of the DOE document, "Facilities for the Future of Science: A Twenty-Year Outlook." Of the 28 facilities listed, 13 involve accelerators. Thanks to SciDAC, a powerful suite of parallel simulation tools has been developed that represent a paradigm shift in computational accelerator science. Simulations that used to take weeks or more now take hours, and simulations that were once thought impossible are now performed routinely. These codes have been applied to many important projects of DOE/SC including existing facilities (the Tevatron complex, the Relativistic Heavy Ion Collider), facilities under construction (the Large Hadron Collider, the Spallation Neutron Source, the Linac Coherent Light Source), and to future facilities (the International Linear Collider, the Rare Isotope Accelerator). The new codes have also been used to explore innovative approaches to charged particle acceleration. These approaches, based on the extremely intense fields that can be present in lasers and plasmas, may one day provide a path to the outermost reaches of the energy frontier. Furthermore, they could lead to compact, high-gradient accelerators that would have huge consequences for US science and technology, industry, and medicine. In this talk I will describe the new accelerator modeling capabilities developed under SciDAC, the essential role of multi-disciplinary collaboration with applied mathematicians, computer scientists, and other IT experts in developing these capabilities, and provide examples of how the codes have been used to support DOE/SC accelerator projects.

show abstract

Three-dimensional quasistatic model for high brightness beam dynamics simulation

Cited by 153 publications

References 11 publications

Intense terahertz pulses from SLAC electron beams using coherent transition radiation

Intense terahertz pulses from SLAC electron beams using coherent transition radiation

Longitudinal compression and transverse matching of electron bunch for external injection LPWA at ESCULAP

Extraordinary tools for extraordinary science: the impact of SciDAC on accelerator science and technology

Contact Info

Product

Resources

About