Shanghai Superintense Ultrafast Laser Facility

Yuxin, 冷雨欣 Leng

doi:10.3788/cjl201946.0100001

Cited by 4 publications

(1 citation statement)

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“…The μ + beam is accelerated from 300 MeV to 2 GeV in the donut wakefield driven by a shaped steep-rising-front LG laser pulse with a normalized amplitude of a = 22. In 2017, a laser pulse with a wavelength of 800 nm, an output energy of 300 J, a maximum peak power of 10 PW and a pulse width of 21 fs was obtained at the Shanghai Superintense Ultrafast Laser Facility [40], which supports the feasibility of the compact prompt acceleration scheme. This new compact prompt acceleration scheme for μ + beams will provide higher-energy muon sources than those of traditional accelerators.…”

Section: Discussionmentioning

confidence: 70%

Prompt acceleration of a μ ⁺ beam in a toroidal wakefield driven by a shaped steep-rising-front Laguerre–Gaussian laser pulse

Wang¹,

Lan²,

Huang³

et al. 2022

Plasma Sci. Technol.

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The recent experimental data of anomalous magnetic moments strongly indicates the existence of new physics beyond the standard model. An energetic µ + beam is a potential option to the µ + rare decay, µSR(the spin rotation, resonance and relaxation) technology, future muon colliders and neutrino factories. It is proposed a prompt µ + acceleration in a nonlinear donut wakefield driven by a shaped steep-rising-front Laguerre-Gaussian (LG) laser pulse. An analytical model is given and shows that a µ + beam can be focused by the electron cylinder at the center line of the donut bubble and accelerated by the front part of the longitudinal wakefield. A shaped LG laser with a shorter rise time can push plasma electrons to generate a higher-density electron sheath at the front of the bubble, which can enlarge the acceleration field. The acceleration field driven by the steep-rising-front shaped LG laser pulse is about four times higher than that driven by a normal LG laser pulse. Our simulation results show that a 300MeV µ + bunch can be accelerated to 2GeV and its transverse size is focused from initial w0 = 5µm to w = 1µm in the donut bubble driven by the steep-rising-front shaped LG laser pulse with the normal intensity a = 22.

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Section: Discussionmentioning

confidence: 70%

Prompt acceleration of a μ ⁺ beam in a toroidal wakefield driven by a shaped steep-rising-front Laguerre–Gaussian laser pulse

Wang¹,

Lan²,

Huang³

et al. 2022

Plasma Sci. Technol.

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Collimated electron sheet driven by an intense Laguerre–Gaussian pulse

et al. 2021

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A collimated electron sheet is generated by using an intense circularly polarized (CP) Laguerre–Gaussian (LG) laser to irradiate the plasma in three-dimensional particle-in-cell simulations. It is found that the CP LGpl(p=0, l=1, σz=1) laser provides a more stable vortex force to ensure the concentrated transport of electrons as compared to a linearly polarized LG laser. Herein, the effects of the laser intensity, target density, and preplasma on collimated sheet formation are discussed in detail. Such collimated electron sheets may be potentially used in various applications such as the generation of vortex radiation sources and electron microscopy.

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Revisiting neutron yield in table-top nuclear fusion driven by an intense femtosecond laser pulse interaction with the gas clusters

Chen

Cao

Ren

et al. 2021

Int. J. Mod. Phys. B

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With the development of femtosecond (fs) laser technology, an fs laser pulse with 10s of Joule, even 100s of Joule energy is available and the focused laser intensity can be expected to induce the pure Coulomb explosion of the cluster with a much larger average radius than before. Meanwhile, the production of gas cluster with an average radius of upto 10s of nanometer has been possible. In this case, it is necessary to reinvestigate the feasibility of 109 n/shot neutron yield for the practical application in the intense fs laser-driven nuclear fusion. In this work, the neutron yield from the explosions of the D2 clusters of 6–20 nm average radius at the 0.5–100 J pulse energy and the CD4 clusters was investigated theoretically. It is found that the optimum neutron yield of 109 n/shot can be obtained at the laser energy and the cluster radius currently available. However, a clustered-gas jet with a large cross-section is demanded to match the proper plasma diameter.

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Shanghai Superintense Ultrafast Laser Facility

Cited by 4 publications

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Prompt acceleration of a μ ⁺ beam in a toroidal wakefield driven by a shaped steep-rising-front Laguerre–Gaussian laser pulse

Prompt acceleration of a μ ⁺ beam in a toroidal wakefield driven by a shaped steep-rising-front Laguerre–Gaussian laser pulse

Collimated electron sheet driven by an intense Laguerre–Gaussian pulse

Revisiting neutron yield in table-top nuclear fusion driven by an intense femtosecond laser pulse interaction with the gas clusters

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Shanghai Superintense Ultrafast Laser Facility

Cited by 4 publications

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Prompt acceleration of a μ + beam in a toroidal wakefield driven by a shaped steep-rising-front Laguerre–Gaussian laser pulse

Prompt acceleration of a μ + beam in a toroidal wakefield driven by a shaped steep-rising-front Laguerre–Gaussian laser pulse

Collimated electron sheet driven by an intense Laguerre–Gaussian pulse

Revisiting neutron yield in table-top nuclear fusion driven by an intense femtosecond laser pulse interaction with the gas clusters

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Prompt acceleration of a μ ⁺ beam in a toroidal wakefield driven by a shaped steep-rising-front Laguerre–Gaussian laser pulse

Prompt acceleration of a μ ⁺ beam in a toroidal wakefield driven by a shaped steep-rising-front Laguerre–Gaussian laser pulse