Enhanced laser radiation pressure acceleration of protons with a gold cone-capillary

Lv, Chong; Xie, Bai-Song; Wan, Feng; Hou, Ya-Juan; Jia, Mo-Ran; Sang, Hai-Bo; Hong, Xue-Ren; Liu, Shibing

doi:10.1063/1.4978953

Cited by 3 publications

(2 citation statements)

References 34 publications

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“…Among them, laser wakefield acceleration [37] and laser ponderomotive acceleration [38,39] are generally used to enhance electron acceleration and constraint. Recently, the radiation pressure acceleration (RPA) of ultra-thin foils is also applied to γ-ray emission and dense e + e − pairs production [40], as it is capable of obtaining high energy electrons and quasi-monoenergetic ion beams [41][42][43][44].…”

Section: Introductionmentioning

confidence: 99%

“…Among them, laser wakefield acceleration [43] and laser ponderomotive acceleration [44,45] are generally used to realize electron acceleration and constraint. Recently, the radiation pressure acceleration (RPA) of ultra-thin foils has also been applied to γ-ray emission and dense e e +pair production [46], as it is capable of obtaining high energy electrons and quasi-monoenergetic ion beams [47][48][49][50]. However, in this mechanism, the laser intensity of 5× 10 23 W cm −2 is too high to obtain experimentally and, on the other hand, the plane target cannot prevent the electrons from transverse escaping, while the radiative trapping [51] and pair plasma compression induced by standing wave fields can also be used to confine high-energy charged particles [6].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High density γ-ray emission and dense positron production via multi-laser driven circular target

Hou¹,

Xie²,

Lv³

et al. 2019

Plasma Sci. Technol.

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A diamond-like carbon circular target is proposed to improve the γ-ray emission and pair production with lasers intensity of 8 × 10 22 W/cm 2 by using two-dimensional particle-in-cell simulations with quantum electrodynamics. It is found that the circular target can significantly enhance the density of γ-photons than plane target when two colliding circularly polarized lasers irradiate the target. By multi-lasers irradiate the circular target, the optical trap of lasers can prevent the high energy electrons accelerated by laser radiation pressure from escaping. Hence, high density as 5164n c γ-photons is obtained through nonlinear Compton back-scattering. Meanwhile, 2.7 × 10 11 positrons with average energy of 230 MeV is achieved via multiphoton Breit-Wheeler process. Such ultrabright γ-ray source and dense positrons source can be useful to many applications. The optimal target radius and laser mismatching deviation parameters are also discussed in detail.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High density γ-ray emission and dense positron production via multi-laser driven circular target

Hou¹,

Xie²,

Lv³

et al. 2019

Plasma Sci. Technol.

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Accelerating and guiding of C6+ by an intense laser irradiating on a foil target with a tapered channel

Wan

Hou

et al. 2017

Physics of Plasmas

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A novel scheme with a tapered channel attached to an ultra-thin carbon foil is proposed to accelerate and guide carbon ions via breakout afterburner mechanism. Also, the problems involved are investigated by using two-dimensional particle-in-cell simulations. It is demonstrated that the tapered channel can efficiently accelerate and guide carbon ions and result in a much better quality beam with an order of magnitude higher in density and 22% larger in cut-off energy than that without the tapered channel. The enhanced reasons are analyzed in detail, which are mainly attributed to the guidance of the longitudinal electric field and the focus of the transverse electric field, as well as the convergence effect of the tapered channel. All of them are certified to guide greatly carbon ions to move along the longitudinal direction. Besides, during the simulation time, the ion beam with a tapered channel can remain eight times smaller in divergence angle than that without the tapered channel. Such a target may be beneficial to many applications such as ion fast ignition in inertial fusion, high-energy physics, and proton therapy.

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High quality ion acceleration through the interaction of two matched counterpropagating transversely polarized Gaussian lasers with a flat foil target

Zhou

Hong

Xie

et al. 2018

Phys. Rev. Accel. Beams

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In order to generate high quality ion beams through a relatively uniform radiation pressure acceleration (RPA) of a common flat foil, a new scheme is proposed to overcome the curve of the target while being radiated by a single transversely Gaussian laser. In this scheme, two matched counterpropagating transversely Gaussian laser pulses, a main pulse and an auxiliary pulse, impinge on the foil target at the meantime. It is found that in the two-dimensional (2D) particle-in-cell (PIC) simulation, by the restraint of the auxiliary laser, the curve of the foil can be effectively suppressed. As a result, a high quality monoenergetic ion beam is generated through an efficient RPA of the foil target. For example, two counterpropagating transversely circularly polarized Gaussian lasers with normalized amplitudes a 1 ¼ 120 and a 2 ¼ 30, respectively, impinge on the foil target at the meantime, a 1.3 GeV monoenergetic proton beam with high collimation is obtained finally. Furthermore, the effects on the ions acceleration with different parameters of the auxiliary laser are also investigated.

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Enhanced laser radiation pressure acceleration of protons with a gold cone-capillary

Cited by 3 publications

References 34 publications

High density γ-ray emission and dense positron production via multi-laser driven circular target

High density γ-ray emission and dense positron production via multi-laser driven circular target

Accelerating and guiding of C6+ by an intense laser irradiating on a foil target with a tapered channel

High quality ion acceleration through the interaction of two matched counterpropagating transversely polarized Gaussian lasers with a flat foil target

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