Indirect drive thermonuclear targets with free-flying fuel capsules

Shmatov, M. L.

doi:10.1070/qel17471

Quantum Electron.

2021

DOI: 10.1070/qel17471

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Indirect drive thermonuclear targets with free-flying fuel capsules

M. L. Shmatov¹

Abstract: Indirect drive thermonuclear targets with fuel capsules at the stage of X-ray irradiation in a free flight are proposed. The absence of structural elements fixing the fuel capsule at the beginning of this stage will make the initiation of their associated instabilities impossible and will thereby improve the fuel compression.

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2023

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Point design of octahedral spherical Hohlraum with HDC–CH capsule for a predictable inertial confinement fusion at/beyond ignition

Qiao,

Chen,

Cao

et al. 2023

Physics of Plasmas

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Fusion ignition has been successfully achieved at the National Ignition Facility, but the main obstacles of low-mode asymmetries, laser-plasma instabilities (LPIs), and hydrodynamic instabilities (HIs) still remain in the path toward a predictable yield for fusion ignition, especially at high gain. A recently proposed octahedral spherical Hohlraum, i.e., a spherical Hohlraum with six laser entrance holes of octahedral symmetry [Lan et al., Phys. Plasmas 21, 010704 (2014); Phys. Rev. Lett. 127, 245001 (2021)], was demonstrated to have the advantages of a naturally high radiation symmetry without any symmetry tuning technology and a high energy coupling efficiency from the drive laser to the capsule hotspot. In addition, a novel HDC–CH (here, HDC and CH refer to high density carbon and glow discharge plastic, respectively) capsule design was proposed to have the advantages in both low LPIs and low HIs by using two different ablators [Qiao and Lan, Phys. Rev. Lett. 126, 185001 (2021)]. For the first time, here we proposed a point design target composed of an octahedral spherical Hohlraum and an HDC–CH capsule to suppress the above-mentioned obstacles and presented the 2D simulation of the effect of symmetry and hydrodynamic instabilities on implosion performances. Our work provides a novel target design for a more predictable fusion ignition in experiment.

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Point design of octahedral spherical Hohlraum with HDC–CH capsule for a predictable inertial confinement fusion at/beyond ignition

Qiao,

Chen,

Cao

et al. 2023

Physics of Plasmas

View full text Add to dashboard Cite

show abstract

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Indirect drive thermonuclear targets with free-flying fuel capsules

Cited by 1 publication

References 16 publications

Point design of octahedral spherical Hohlraum with HDC–CH capsule for a predictable inertial confinement fusion at/beyond ignition

Point design of octahedral spherical Hohlraum with HDC–CH capsule for a predictable inertial confinement fusion at/beyond ignition

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