Brilliant attosecond γ-ray emission and high-yield positron production from intense laser-irradiated nano-micro array

2021 ◽  
Vol 28 (2) ◽  
pp. 023110
Author(s):  
Liang-qi Zhang ◽  
Shao-dong Wu ◽  
Hai-rong Huang ◽  
Hao-yang Lan ◽  
Wei-yuan Liu ◽  
...  
Keyword(s):  
Intense Laser ◽  
High Yield ◽  
Micro Array ◽  
Γ Ray ◽  
Positron Production

Laser-driven γ-ray, positron, and neutron source from ultra-intense laser-matter interactions

2015 ◽  
Vol 22 (8) ◽  
pp. 083113 ◽  
Author(s):  
Tatsufumi Nakamura ◽  
Takehito Hayakawa
Keyword(s):  
Neutron Source ◽  
Intense Laser ◽  
Γ Ray

scholarly journals Ultra-bright γ-ray emission and dense positron production from two laser-driven colliding foils

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Han-Zhen Li ◽  
Tong-Pu Yu ◽  
Jin-Jin Liu ◽  
Yan Yin ◽  
Xing-Long Zhu ◽  
...  
Keyword(s):  
Γ Ray ◽  
Positron Production

scholarly journals Observation of a high degree of stopping for laser-accelerated intense proton beams in dense ionized matter

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Jieru Ren ◽  
Zhigang Deng ◽  
Wei Qi ◽  
Benzheng Chen ◽  
Bubo Ma ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Dominant Role ◽  
Dense Matter ◽  
High Energy ◽  
Fast Ignition ◽  
High Energy Density ◽  
Intense Laser ◽  
High Yield ◽  
Inertial Confinement ◽  
Proton Beams

Abstract Intense particle beams generated from the interaction of ultrahigh intensity lasers with sample foils provide options in radiography, high-yield neutron sources, high-energy-density-matter generation, and ion fast ignition. An accurate understanding of beam transportation behavior in dense matter is crucial for all these applications. Here we report the experimental evidence on one order of magnitude enhancement of intense laser-accelerated proton beam stopping in dense ionized matter, in comparison with the current-widely used models describing individual ion stopping in matter. Supported by particle-in-cell (PIC) simulations, we attribute the enhancement to the strong decelerating electric field approaching 1 GV/m that can be created by the beam-driven return current. This collective effect plays the dominant role in the stopping of laser-accelerated intense proton beams in dense ionized matter. This finding is essential for the optimum design of ion driven fast ignition and inertial confinement fusion.

Generation of dense and well-collimated positron beam via ultra-intense laser colliding with a flying plasma layer

2021 ◽  
Author(s):  
QianQian Han ◽  
Xuesong Geng ◽  
Baifei Shen ◽  
Liangliang Ji ◽  
Zhizhan Xu
Keyword(s):  
Plasma Layer ◽  
Thin Foil ◽  
Positron Beam ◽  
Laser Pulses ◽  
Intense Laser ◽  
High Yield ◽  
Intensity Level ◽  
Electron Positron ◽  
Large Peak ◽  
Electron Positron Pair

Abstract With the forthcoming 10-100PW laser facilities, laser-driven electron-positron-pair production has gained particular interest. Here a scheme to enhance the generation of dense electron-positron-pairs is proposed and numerically demonstrated, employing double laser pulses at the intensity level of 10^23 W cm^(-2). The first laser accelerates a thin foil to a relativistic speed via the radiation-pressure-acceleration mechanism and a counter-propagating laser irradiates this flying plasma layer. The simulation results indicate that a high-yield and well-collimated positron beam (~5.5×10^10 positrons/pulse, 8.8nC/pulse) is generated with a large peak density(1.1×10^21 cm^(-3) ) by using tens-of-PW laser pulses.

Ultrabright γ-ray emission from the interaction of an intense laser pulse with a near-critical-density plasma

2021 ◽  
Author(s):  
Aynisa Tursun ◽  
Mamat Ali Bake ◽  
Baisong Xie ◽  
Yasheng Niyazi ◽  
Abuduresuli Abudurexiti
Keyword(s):  
Laser Pulse ◽  
Critical Density ◽  
Intense Laser ◽  
Intense Laser Pulse ◽  
Γ Ray ◽  
Density Plasma

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

2019 ◽  
Vol 21 (8) ◽  
pp. 085201
Author(s):  
Yajuan HOU ◽  
Baisong XIE ◽  
Chong LV ◽  
Feng WAN ◽  
Li WANG ◽  
...  
Keyword(s):  
High Density ◽  
Γ Ray ◽  
Circular Target ◽  
Positron Production

scholarly journals 10-Hz beads pellet injection and laser engagement

2021 ◽  
Author(s):  
Yoshitaka Mori ◽  
Katsuhiro Ishii ◽  
Ryohei Hanayama ◽  
Shinichiro Okihara ◽  
Yoneyoshi Kitagawa ◽  
...  
Keyword(s):  
Fusion Energy ◽  
Free Fall ◽  
Laser Pulses ◽  
Intense Laser ◽  
Injection System ◽  
Fuel Pellet ◽  
Inertial Fusion ◽  
Inertial Fusion Energy ◽  
Pellet Injection ◽  
Γ Ray

Abstract Laser Inertial Fusion Energy reactor requires repetitive fuel pellet injection and laser engagement to fuse fusion fuel beyond a few Hz. We demonstrate 10 Hz free-fall bead pellets injection and laser engagement with γ-ray generation. Diameter of 1 mm deuterated polystyrene beads were engaged by counter illuminating ultra-intense laser pulses with intensity of 5 x1017 W/cm2 at 10 Hz. The spatial distribution of free-fall beads was 0.86 mm in horizontal, and 0.18 mm in vertical. The system operated beyond 5 minute, 3500 beads supply with achieved frequencies of 2.1 Hz for illumination on bead and 0.7 Hz for γ-ray generation, these frequencies increments three times in relation to the previous 1 Hz injection system. The operation duration was limited by pellet supply. This injection and engagement system can apply for Laser Inertial Fusion Energy research platform.

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