A linear inertial electrostatic confinement fusion neutron source equipped with a cooling system for high power operation was developed and its discharge characteristics and neutron production performance were tested under a wide range of discharge conditions. Four different types of discharge anodes were prepared and the dependencies of the device performance on the anode shape were precisely investigated. A maximum neutron production rate of 3.4×10⁶ n/s was achieved when the device was operated with single‐cylinder‐type anodes under a discharge voltage of 94 kV, a current of 20 mA, and a deuterium gas pressure of 0.5 Pa. By comparing the discharge characteristics and neutron generation rates under different anode shapes, we found that the larger inner diameter of the anode leads to longer effective gap length and lower operating pressure, which may result in relatively high fusion reaction rate observed with the single‐cylinder‐type anodes.

中文翻译：

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线性惯性静电约束聚变中子源放电特性与中子产率的阳极形状相关性

开发了一种配备有用于高功率运行的冷却系统的线性惯性静电约束聚变中子源，并在各种放电条件下测试了其放电特性和中子生产性能。制备了四种不同类型的放电阳极，并精确研究了器件性能对阳极形状的依赖性。最大中子产生率为3.4×10 ⁶ 当设备在94 kV的放电电压，20 mA的电流和0.5 Pa的氘气压力下使用单圆柱型阳极工作时，可达到n / s。在不同的阳极形状下，我们发现阳极的较大内径导致更长的有效间隙长度和更低的工作压力，这可能导致单缸型阳极观察到相对较高的熔融反应速率。