High Current Wire Array and Gas Puff Implosions on the Z Accelerator to Produce Intense K-Shell X-Ray Emissions

2006 IEEE International Conference on Megagauss Magnetic Field Generation and Related Topics Pub Date : 2006-11-01 DOI:10.1109/MEGAGUSS.2006.4530722

C. Coverdale, C. Deeney, B. Jones, P. Lepell, A. Velikovich, J. Thornhill, J. Apruzese, K. Whitney, R. Clark, J. Davis, J. Levine, H. Sze, J. Banister, B. Failor, N. Qi, Y. Maron

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Abstract

Over the last several years, the Z Accelerator has been engaged in research on near-Planckian x-ray sources for inertial confinement fusion and on K-shell emitting sources for radiation-material interaction studies. These radiating z pinches exhibit complex dynamics that have been, and continue to be, studied over a wide range of configurations. In this paper, the progress to date for the production of tens to hundreds of kilojoules of K-shell emission from 8 keV to 3 keV will be presented. Nested wire arrays and multi-shell gas puffs have been employed to help mitigate implosion instabilities and asymmetries to produce x-ray powers of tens of terawatts with emitted x-ray risetimes of a few nanoseconds. Spectroscopy and modeling of these pinches are providing insight into the role of temperature and density gradients and other plasma phenomena in the production of the radiation. Future directions will also be discussed.

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在Z加速器上产生强k壳x射线辐射的大电流线阵和气泡内爆

在过去的几年里，Z加速器一直从事惯性约束聚变的近普朗克x射线源和辐射物质相互作用研究的k壳发射源的研究。这些辐射的z压缩表现出复杂的动力学，已经并将继续在广泛的配置中进行研究。本文将介绍从8kev到3kev的数十到数百千焦耳k壳发射的生产进展。嵌套线阵列和多壳气泡被用来帮助减轻内爆的不稳定性和不对称性，以产生几十太瓦的x射线功率，发射的x射线上升时间为几纳秒。光谱学和这些挤压的建模提供了对温度和密度梯度以及其他等离子体现象在辐射产生中的作用的深入了解。未来的发展方向也将被讨论。

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2006 IEEE International Conference on Megagauss Magnetic Field Generation and Related Topics

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