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研究了 ＤＰＦ－４０ Ｍａｔｈｅｒ型等离子体焦点装置不同电极结构对于中子发射的影响。通过改变电极结构，使装置产生的 ２．４５ ＭｅＶ氖－氖反应（Ｄ－Ｄ）脉冲快中子产额由每次放电 １０８提高到 １０９。该值已接近中子产额定标定律的预期值。中子脉宽约为 ４０～６０ ｎｓ。此外发现，当装置长期连续运行时，绝缘子表面状态的进一步变化对等离子体聚焦运动和中子发射具有不利影响。
The influence of different electrode structures of DPF-40 Mather-type plasma focus device on neutron emission was studied. By changing the electrode structure, the device generated 2.45 MeV neon-neon reaction (D-D) pulse fast neutron yield from each discharge 108 increased to 109. This value is close to the expected value of the neutron yield calibration law. Neutron pulse width is about 40 ~ 60 ns. In addition, it has been found that further changes in the surface state of the insulator have a detrimental effect on the focusing motion of the plasma and the neutron emission when the device is continuously operated for a long period of time.