TESLA FEL photo-injector simulations giving high-quality beams

Coacolo, J.-L.; Pagani, C.; Serafini, L.

doi:10.1016/s0168-9002(97)00539-1

Cited by 8 publications

(6 citation statements)

References 1 publication

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“…The evaluation of the fields from the phase space coordinates of the particles is done only in the positions instantaneously occupied by the particles. Some codes, as TREDI [15] or ATRAP [16], take into account the effects due to the finite propagation velocity of signals by calculating the fields according to the Lienard-Wiechert formalism,…”

Section: B Integral Methodsmentioning

confidence: 99%

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Simulation codes for high brightness electron beam free-electron laser experiments

Giannessi

2003

Phys. Rev. ST Accel. Beams

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The high brightness electron beam required by a short wavelength self-amplified spontaneous emission free-electron laser (FEL) may be reached only with an accurate design of the beam dynamics from the generation in the rf injector up to the undulator. The beam dynamics is affected by strong selfconsistent effects at injection, in the compression stage, and during the FEL process. The support of numerical simulations is extensively used in the predictions of the beam behavior in these nonlinear dynamical conditions. I present a review of available simulation techniques, currently exploited in the design of short wavelength free-electron lasers.

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Section: B Integral Methodsmentioning

confidence: 99%

“…The coordinate z in Eq. (15) (16) represents the radial space charge interaction of a single slice with the whole beam, depending on the instantaneous bunch length and aspect ratio A. The above expression has been derived for a cylindrical beam of homogeneous density.…”

Section: B Integral Methodsmentioning

confidence: 99%

Simulation codes for high brightness electron beam free-electron laser experiments

Giannessi

2003

Phys. Rev. ST Accel. Beams

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“…We stress here that such high-quality beams are ideal for a wide range of applications, including the injection of electrons in a LINAC accelerator for the production of high energy beams (e.g., in free-electron laser (FEL) experiments which require very low emittances [6]) and the production of ultrashort pulses of x rays with linear and nonlinear Thomson backscattering [12]. …”

Section: Commentsmentioning

confidence: 99%

“…The electron bunches produced so far by the interaction of superintense and ultrashort laser pulses with plasmas, e.g., via laser wakefield acceleration (LWFA) [1] or self-modulated LWFA [2], are characterized by an almost 100% energy spread [3][4][5]. However, in most applications of laser-plasma produced electron bunches (e.g., in the electron injection in a particle accelerator [6] or in the tunable x-ray sources based on the Thomson scattering of an intense laser beam impinging on energetic electron bunches [7,8]), a reduced energy spread and a low transverse emittance of the beam are required. For this reason several teams are presently investigating, with theoretical and experimental approaches, different possibilities of reducing energy spread and beam emittance [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Production of high-quality electron beams in numerical experiments of laser wakefield acceleration with longitudinal wave breaking

Tomassini

Galimberti

Giulietti

et al. 2003

Phys. Rev. ST Accel. Beams

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In 1998 Bulanov et al. [Phys. Rev. E 58, R5257 (1998)] proposed a novel scheme for the production of high-quality electron beams in laser wakefield acceleration in which a controlled longitudinal nonlinear wave breaking is induced by a tailored electron density profile. This proposal was supported by both analytical and numerical results in a spatially one-dimensional configuration. In this paper we present results of a particle-in-cell simulation, two-dimensional in space and three-dimensional in the fields, of the interaction of an ultraintense laser pulse with a preformed plasma where the electron density decreases steeply from a first to a second plateau. We show that in our regime two-dimensional effects play a relevant role, allowing the production of well collimated, short and almost monochromatic electron beam. Remarkably low values of transverse and longitudinal normalized beam emittance tr rms 9 10 ÿ2 mm mrad and lon rms 2 mm keV are obtained.

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“…For a systematic machine design and optimization, it still heavily depends on the use of self-consistent computer simulations. A number of computer codes have been developed in the past years to simulate beam transport inside photoinjectors [3,4,5,6,7,8,9]. As far as we know, a code which can efficiently and accurately handle a three-dimensional beam with large-aspect ratio and large energy spread including possible image-charge effects is still not available on parallel computer.…”

Section: Introductionmentioning

confidence: 99%

A 3D Parallel Beam Dynamics Code for Modeling High Brightness Beams in Photoinjectors

Qiang

Lidia

Ryne

et al.

Proceedings of the 2005 Particle Accelerator Conference

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In this paper we report on IMPACT-T, a 3D beam dynamics code for modeling high brightness beams in photoinjectors and rf linacs. IMPACT-T is one of the few codes used in the photoinjector community that has a parallel implementation, making it very useful for high statistics simulations of beam halos and beam diagnostics. It has a comprehensive set of beamline elements, and furthermore allows arbitrary overlap of their fields. It is unique in its use of space-charge solvers based on an integrated Green function to efficiently and accurately treat beams with large aspect ratio, and a shifted Green function to efficiently treat image charge effects of a cathode. It is also unique in its inclusion of energy binning in the space-charge calculation to model beams with large energy spread. Together, all these features make IMPACT-T a powerful and versatile tool for modeling beams in photoinjectors and other systems. In this paper we describe the code features and present results of IMPACT-T simulations of the LCLS photoinjectors. We also include a comparison of IMPACT-T and PARMELA results.

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TESLA FEL photo-injector simulations giving high-quality beams

Cited by 8 publications

References 1 publication

Simulation codes for high brightness electron beam free-electron laser experiments

Simulation codes for high brightness electron beam free-electron laser experiments

Production of high-quality electron beams in numerical experiments of laser wakefield acceleration with longitudinal wave breaking

A 3D Parallel Beam Dynamics Code for Modeling High Brightness Beams in Photoinjectors

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