Magnetic insulation system for a laser-plasma ion diode of a portable neutron generator

IF 0.4 4区工程技术 Q4 NUCLEAR SCIENCE & TECHNOLOGY

Atomic Energy Pub Date : 2024-04-04 DOI:10.1007/s10512-024-01064-0

D. S. Stepanov, K. I. Kozlowski, A. P. Skripnik, E. Y. Shkolnikov

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Abstract

A new promising type of portable pulsed neutron generator is based on a laser-plasma ion diode with magnetic insulation. At the present stage of its evolution, such a generator requires the development of a magnetic insulation system capable of blocking secondary electrons in a laser-plasma diode. The article considers the development of such a magnetic insulation system, during which the effect of the magnetic field distribution on the shape of the ion current pulse through the diode was estimated using the KARAT electromagnetic code to significantly enhance the theoretical validity of the magnetic system design. The final design of the magnetic system should provide the complete insulation of secondary electrons, as well as significantly increase the fraction of ions deposited on the neutron target, as well as the electrical strength of the accelerating gap. Following was fabrication of the developed magnetic system, measurements of the magnetic field distribution within the accelerating gap showed the sufficient accuracy of its implementation. The average difference with the model is ~3%.

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便携式中子发生器激光等离子体离子二极管的磁绝缘系统

摘要一种新型的有前途的便携式脉冲中子发生器是以带磁绝缘的激光等离子体离子二极管为基础的。在其发展的现阶段，这种发生器需要开发一种能够在激光等离子二极管中阻挡次级电子的磁绝缘系统。文章探讨了这种磁绝缘系统的开发过程，其间使用 KARAT 电磁代码估算了磁场分布对通过二极管的离子电流脉冲形状的影响，从而大大提高了磁系统设计的理论有效性。磁系统的最终设计应能完全隔绝二次电子，并显著提高沉积在中子靶上的离子比例以及加速间隙的电强度。在制作了所开发的磁系统之后，对加速间隙内磁场分布的测量结果表明，该系统的实施具有足够的准确性。与模型的平均差异约为 3%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Atomic Energy 工程技术-核科学技术

CiteScore

1.00

自引率

20.00%

发文量

100

审稿时长

4-8 weeks

期刊介绍： Atomic Energy publishes papers and review articles dealing with the latest developments in the peaceful uses of atomic energy. Topics include nuclear chemistry and physics, plasma physics, accelerator characteristics, reactor economics and engineering, applications of isotopes, and radiation monitoring and safety.