Axial confinement of wire array Z-pinch precursor plasmas by a pulsed magnetic mirror field

Chen, C.; Lavine, E. S.; Potter, W. M.; Seyler, C. E.; Kusse, B. R.

doi:10.1063/5.0207561

Axial confinement of wire array Z-pinch precursor plasmas by a pulsed magnetic mirror field

Journal Article · Tue Jul 09 00:00:00 EDT 2024 · Physics of Plasmas

DOI:https://doi.org/10.1063/5.0207561· OSTI ID:2567867

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Cornell University, Ithaca, NY (United States)

A novel wire-array Z-pinch platform has been developed to study the effect of a pulsed magnetic mirror field on a collisional high energy density plasma. The mirror is driven in series with the Z-pinch target and, therefore, scales with driver current. Axial confinement is observed based on visible imaging and axial flow velocity measurements. The presence of axial compressing J xB force is determined indirectly based on Thomson scattering and interferometry measurements and corroborated by three-dimensional extended-MHD simulations. Compared to non-magnetized wire array Z-pinch, a modified pulsed mirror configuration is observed to increase precursor plasma thermal energy density by about 30%. If optimized, such a configuration could potentially improve magnetized liner inertial fusion performance by reducing axial plasma end loss.

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Research Organization:: Cornell University, Ithaca, NY (United States)

Sponsoring Organization:: USDOE; USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0003764; NA0004148

OSTI ID:: 2567867

Alternate ID(s):: OSTI ID: 2494461

Journal Information:: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 7 Vol. 31; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Axial confinement of wire array Z-pinch precursor plasmas by a pulsed magnetic mirror field

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