Influence factors of resolution in laser accelerated proton radiography and image deblurring

Li, D. Y.; Xu, Xiaoying; Yang, Taoxi; Wu, Mei; Zhang, Y. F.; Cheng, Humin; Hu, Xiaoguang; Geng, Yixing; Zhu, Jinying; Zhao, Yanying; J., W.; Lin, Chen; Yan, Xiumin

doi:10.1063/5.0039364

Cited by 7 publications

(1 citation statement)

References 56 publications

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“…II.A.1. This is typically of the order of 10 μm FWHM (Borghesi et al, 2004;Wang et al, 2015;Li et al, 2021), set by the size of the laser focal spot, but can vary from experiment to experiment.…”

Section: Spatial Resolutionmentioning

confidence: 99%

Proton imaging of high-energy-density laboratory plasmas

Schaeffer,

Bott,

Borghesi

et al. 2023

Rev. Mod. Phys.

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Proton imaging has become a key diagnostic for measuring electromagnetic fields in high-energydensity (HED) laboratory plasmas. Compared to other techniques for diagnosing fields, proton imaging is a measurement that can simultaneously offer high spatial and temporal resolution and the ability to distinguish between electric and magnetic fields without the protons perturbing the plasma of interest. Consequently, proton imaging has been used in a wide range of HED experiments, from

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Section: Spatial Resolutionmentioning

confidence: 99%

Proton imaging of high-energy-density laboratory plasmas

Schaeffer,

Bott,

Borghesi

et al. 2023

Rev. Mod. Phys.

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Automated and rapid target position alignment in laser–plasma experiments using deep learning algorithms

Guo,

Xia,

et al. 2024

Nuclear Instruments and Methods in Physics Research Section A:

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Manipulation of laser-accelerated proton beam spatial distribution by laser machined microstructure targets

Yang

et al. 2021

Physics of Plasmas

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Experimental study of laser proton acceleration was carried out using laser machined line targets and cross targets with tens of micrometers scale. We have found that both the shape and material of the microstructure targets have significant influences on the distribution of the proton beam. For the aluminum line target, the proton beam spot expands in a direction perpendicular to the boundary of the target; while for the plastic line target, it expands parallel to the boundary of the target. Detailed PIC simulations of the aluminum target have been carried out, which show that due to the lateral transport of hot electrons and the sheath fields accumulated at the edge of the microstructure target, the divergence angle of the accelerated proton beam is changed accordingly, thereby modulating the spatial distribution: the elliptical beam spot can be obtained from the line target, and the quasi-square beam spot can be obtained from the cross target. Simulations of the plastic target indicate that the difference in the electron transport properties for the two types of targets may be the reason for the completely different beam spot shapes. This work shows that the microstructure targets can be a potential method to manipulate the spatial distribution and uniformity of the proton beam.

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Influence factors of resolution in laser accelerated proton radiography and image deblurring

Cited by 7 publications

References 56 publications

Proton imaging of high-energy-density laboratory plasmas

Proton imaging of high-energy-density laboratory plasmas

Automated and rapid target position alignment in laser–plasma experiments using deep learning algorithms

Manipulation of laser-accelerated proton beam spatial distribution by laser machined microstructure targets

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