Bright Betatronlike X Rays from Radiation Pressure Acceleration of a Mass-Limited Foil Target

Yu, Tong-Pu; Pukhov, A.; Sheng, Zheng-Ming; Feng, Liqiang; Shvets, Gennady

doi:10.1103/physrevlett.110.045001

Cited by 71 publications

(52 citation statements)

References 35 publications

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“…Numerical calculations are needed and they have been used recently to calculate the radiation spectrum. Previous numerical methods include photonrecording based calculation within particle-in-cell (PIC) simulations to obtain the betatron radiation spectrum [34][35][36], as well as a postprocessing code to obtain the radiation spectrum [37,38].…”

Section: Introductionmentioning

confidence: 99%

Modeling classical and quantum radiation from laser-plasma accelerators

Chen

Esarey

Geddes

et al. 2013

Phys. Rev. ST Accel. Beams

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The development of models and the ''Virtual Detector for Synchrotron Radiation'' (VDSR) code that accurately describe the production of synchrotron radiation are described. These models and code are valid in the classical and linear (single-scattering) quantum regimes and are capable of describing radiation produced from laser-plasma accelerators (LPAs) through a variety of mechanisms including betatron radiation, undulator radiation, and Thomson/Compton scattering. Previous models of classical synchrotron radiation, such as those typically used for undulator radiation, are inadequate in describing the radiation spectra from electrons undergoing small numbers of oscillations. This is due to an improper treatment of a mathematical evaluation at the end points of an integration that leads to an unphysical plateau in the radiation spectrum at high frequencies, the magnitude of which increases as the number of oscillation periods decreases. This is important for betatron radiation from LPAs, in which the betatron strength parameter is large but the number of betatron periods is small. The code VDSR allows the radiation to be calculated in this regime by full integration over each electron trajectory, including end-point effects, and this code is used to calculate betatron radiation for cases of experimental interest. Radiation from Thomson scattering and Compton scattering is also studied with VDSR. For Thomson scattering, radiation reaction is included by using the Sokolov method for the calculation of the electron dynamics. For Compton scattering, quantum recoil effects are considered in VDSR by using Monte Carlo methods. The quantum calculation has been benchmarked with the classical calculation in a classical regime.

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Section: Introductionmentioning

confidence: 99%

Modeling classical and quantum radiation from laser-plasma accelerators

Chen

Esarey

Geddes

et al. 2013

Phys. Rev. ST Accel. Beams

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“…The theoretical dependence of the ion energy on the inititial target position follows from Eqs. (40) and (41). It reads…”

Section: Is Equal To 7×10mentioning

confidence: 99%

“…Here we plot the theoretical curves (dashed lines) calculated by using Eqs. (40)(41)(42) and the energy value obtained in simulations (dots in color). The theoretical dependence of the ion energy on the inititial target position follows from Eqs.…”

Section: Is Equal To 7×10mentioning

confidence: 99%

“…The usage of a finite transverse size target, it is called the Mass Limited Target (MLT) or the Reduced Mass Target [32][33][34][35][36][37][38], including the cluster targets [18,39], provide a way for enhancement of the ion energy and acceleration efficiency and a way for high brightness X-ray generation [40]. The irradiation of MLT by enough high intensity lasers is one of the most perspective approaches to develop compact ion accelerators [28,41].…”

Section: Introductionmentioning

confidence: 99%

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Effect of electromagnetic pulse transverse inhomogeneity on ion acceleration by radiation pressure

et al. 2015

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In the ion acceleration by radiation pressure a transverse inhomogeneity of the electromagnetic pulse results in the displacement of the irradiated target in the off-axis direction limiting achievable ion energy. This effect is described analytically within the framework of the thin foil target model and with the particle-in-cell simulations showing that the maximum energy of accelerated ions decreases while the displacement from the axis of the target initial position increases. The results obtained can be applied for optimization of the ion acceleration by the laser radiation pressure with the mass limited targets.

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“…1 With the availability of ultra-short, ultra-intense laser pulses in laboratories, a new regime for high-energy-density physics has been opened and increasing attention has been attracted for its significance in the inertial confinement fusion (ICF), 2 novel radiation sources, 3 charged particle acceleration 4,5 and laboratory astrophysics. 6 Among them, ion acceleration via laser-driven plasmas has become a hot research topic in recent years [7][8][9] due to its potential applications in fields like proton radiography, 10 hadron therapy, 11 particle physics 12 and fusion ignitions 13 etc.…”

confidence: 99%

Improving the quality of proton beams via double targets driven by an intense circularly polarized laser pulse

Wang

et al. 2016

AIP Advances

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A new scheme is proposed to improve the quality of proton beams via ultra-intense laser pulse interacting with double plasma targets, which consist of a pre-target with relatively low density and a main target with high density. Both one- and two-dimensional Particle-in-Cell simulations show that, the using of an appropriate pre-target can help to obtain a much stronger longitudinal charge separation field in contrast to using only the main target. And proton beam with lower momentum divergence, better monochromaticity and collimation, as well as higher current density is generated. Moreover, due to the strengthened coupling between the laser pulse and targets, the energy conversion from laser pulse to protons is also increased.

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Bright Betatronlike X Rays from Radiation Pressure Acceleration of a Mass-Limited Foil Target

Cited by 71 publications

References 35 publications

Modeling classical and quantum radiation from laser-plasma accelerators

Modeling classical and quantum radiation from laser-plasma accelerators

Effect of electromagnetic pulse transverse inhomogeneity on ion acceleration by radiation pressure

Improving the quality of proton beams via double targets driven by an intense circularly polarized laser pulse

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