free electron
Continuous Free-Electron State-Density Modeling Based on Plasma Microfield
... ergy is assumed to be unchanging even in the external elec- tric field. In this case, the potential distribution around the ion shows a saddle point. The height of the saddle point varies as the function of the strength ...
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Modelling elliptically polarised free electron lasers
... A model of a free electron laser (FEL) operating with an elliptically polarised undulator is presented. The equations describing the FEL interaction, including resonant harmonic radiation fields, are ...
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Velocity dispersion of correlated energy spread electron beams in the free electron laser
... the electron beam in the free electron laser (FEL), and how to compensate for its effects by using an appropriate taper (or reverse-taper) of the undulator magnetic field, is well ...
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An extended model of the quantum free-electron laser
... the Free Electron Laser (QFEL) have performed an averaging and the application of periodic boundary conditions to the coupled Maxwell – Schrödinger equations over short, resonant wavelength intervals of the ...
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The free electron response in reflectance anisotropy spectra
... anisotropic free electron properties at such surfaces optically, including esti- mating a value of the anisotropy in the dc sheet conductance in favorable ...
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Towards plasma-driven free-electron lasers
... compact free- electron lasers (FEL) with unique X-ray ...plasma-generated electron bunches thereby forms the basis for any application driven by these ...
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Practical considerations for the ion channel free-electron laser
... the free-electron laser (FEL), replacing the deflection of electrons by the periodic magnetic field of an undulator with the periodic betatron motion in an ion ...energetic electron bunches or ...
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Selftrapping, biomolecules and free electron lasers
... the free electron laser FELIX in the Netherlands, Austin et al have studied a number of such sidebands, finding unexpectedly long lifetimes ∼ 30 ps as opposed to only 5 ps for the neighbouring ...
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Compression of X-ray Free Electron Laser pulses to attosecond duration
... X-ray Free Electron Laser facilities currently provide the brightest X-ray pulses available, typically with mJ energy and several hundred femtosecond ...
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Modelling a laser plasma accelerator driven free electron laser
... Free-electron lasers (FEL) are the brightest, coherent sources of short wavelength radiation from the VUV into the x-ray. There is much research interest in reducing the cost and the size of FELs by ...
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Efficiency Enhancement in a Pre Bunched Cerenkov Free Electron Laser
... An electron beam passing through a slow wave structure is unstable to an electromagnetic perturbation whose phase velocity equals the velocity of the ...Cerenkov free electron laser (CFEL) model ...
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The ion channel free-electron laser with varying betatron amplitude
... The ion-channel laser (ICL) is an ultra-compact version of the free-electron laser (FEL), with the undulator replaced by an ion channel. Previous studies of the ICL assumed transverse momentum amplitudes ...
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Relativistic x-ray free-electron lasers in the quantum regime
... x-ray free-electron lasers in the quantum regime, using a collective Klein-Gordon (KG) equation (for relativistic electrons), which is coupled with the Maxwell-Poisson equations for the electromagnetic and ...
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Density matrix approach for quantum free-electron lasers
... The density matrix in the Lindblad form is used to describe the behavior of the Free-Electron Laser (FEL) operating in a quantum regime. The detrimental effects of the spontaneous emission on coherent FEL ...
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Frequency modulated free electron laser
... a free electron laser may be modulated to generate a series of modes that span a bandwidth of at least an order of magnitude greater than the normal FEL ...
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The quantum free electron laser
... Free-electron lasers (FELs) have demonstrated the ability to produce coherent radiation ranging from the microwave to the X-ray region of the electromagnetic spectrum. Although the first theoretical studies ...
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Chirped and modulated electron pulse free electron laser techniques
... FEL. Electron pulses used in free electron lasers can exhibit a large energy chirp (greater than 1 % of mean electron beam energy) which can degrade the FEL ...Puffin. Electron pulses ...
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Two-colour free electron laser with wide frequency separation using a single monoenergetic electron beam
... single electron beam in sequential undulators tuned to two different resonant ...the electron pulse. These assumptions result in a simpler (cleaner) electron beam phase space from which the nature of ...
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Free Electron Laser UCRL JC 104640 pdf
... As the wiggler field is reduced "_ccordingto the required taper, the transverse focusing of the electron beam is relax_._d and the radial size of the beam is increased.. At some point, t[r] ...
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Design of sub-Angstrom compact free-electron laser source
... becomes spatially dependent broadening the emission spectrum. One important criterion for QFEL optimization is to fulfill the condition 𝑎 ! < 1 to overcome the laser diffraction and resultant spectral broadening. From ...
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