Low-Mode Target Lifetime: Experimental Results

Martin, Michel; Gauvin, C.; Moll, Géraldine; Raphaël, Olivier; Legaie, O.; Jeannot, L.

doi:10.13182/fst13-a16324

Cited by 5 publications

(1 citation statement)

References 8 publications

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“…The relationship between the DT ice layer thickness and capsule outer temperature deviations has already been resolved theoretically by different means [25][26][27][28][29][30][31][32][33]. All of them are based on the steady state heat transfer equation applied in a radial direction (equation (1), where r, T, Q, and k are the radial coordinate, temperature, bulk heat generation and thermal conductivity, respectively).…”

Section: Predicting Spherical Symmetry Degeneration Of Non-infrared D...mentioning

confidence: 99%

Predicting spherical symmetry degeneration of non-infrared deuterium ice layer in a cryogenic capsule

et al. 2020

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A cylindrical cryogenic target containing deuterium fuel acts as an important surrogate to help understand implosion physics before the deuterium-tritium capability is brought online. Uniformity of the deuterium ice thickness is a key parameter for the inertial confinement fusion (ICF) experiments. Achieving and retaining a uniform deuterium ice layer in capsule without infrared radiation is difficult in engineering. The method used to calculate the ice thickness deviation of deuterium-tritium fuel is invalid when the bulk heat generation is equal to zero. Appearance solutions of the deuterium ice in steady state conclude that a uniform ice layer cannot be retained for long without infrared radiation. A transient algorithm by integrating heat transfer theory, the equation derived from Stefan problem and mass conservation with moving mesh technics in a finite element model can be applied to predict deuterium ice spherical symmetry degeneration. It is certified with good reliability by comparing the simulated results with theoretical and experimental data. As for the deuterium targets, the characteristics of linear approximation and integrability avert heavy work of moving mesh in analyses of stable and unstable scenarios. The work has great support for the cryogenic processing and engineering design of ICF targets.

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Section: Predicting Spherical Symmetry Degeneration Of Non-infrared D...mentioning

confidence: 99%

Predicting spherical symmetry degeneration of non-infrared deuterium ice layer in a cryogenic capsule

et al. 2020

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Analysis of growing characteristics of fuel layer in ICF cryogenic target

Guo

2022

Cryogenics

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Diagnostic system to study sub-THz emission from open trap at strong beam-plasma interaction

Аржанников¹,

Burdakov²,

Burmasov³

et al. 2016

AIP Conference Proceedings

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Neutral beam (NB) injector for the TCV tokamak has been designed to produce a deuterium beam with energy 30 keV, equivalent current up to 50 A, and pulse duration 2 s. The injector operation is accompanied by generation of fast neutrons produced in deuterium-deuterium collisions via a nuclear fusion reaction D(D,n)3He. Main sources of the neutrons are a beam neutralizer and a deuterium-saturated surface of beam dump. Measurements of the neutron yields from the both sources were produced on the prototype of TCV injector in the Budker Institute of Nuclear Physics. Neutron yields from neutralizer and beam dump are equal to 9.5x10 8 s −1 and 2.3x10 9 s −1 for the nominal parameters of the injector (30 kV, 50 A).

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Low-Mode Target Lifetime: Experimental Results

Cited by 5 publications

References 8 publications

Predicting spherical symmetry degeneration of non-infrared deuterium ice layer in a cryogenic capsule

Predicting spherical symmetry degeneration of non-infrared deuterium ice layer in a cryogenic capsule

Analysis of growing characteristics of fuel layer in ICF cryogenic target

Diagnostic system to study sub-THz emission from open trap at strong beam-plasma interaction

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