利用介质阻挡电极结构，对1.01325×105Pa气压下空气间隙中的放电进行了实验研究，数值模拟计算了实验 条件下电子雪崩的发展过程. 结果表明：对于长度不大于2mm的空气间隙，可能实现辉光放电，对于长度不小于5mm的空气间隙，如果不能设法降低放电场强，放电必然是流注形式，不可能实现辉光放电，另外，实验结果未能验证“离子捕获”机理降低放电场强而实现辉光放电的正确性.

研制了一台五通道ROSS-FILTER-PIN软X射线能谱仪，能谱范围为0.28-1.56kev它由5个连续能段组成，每个能段的起止边由罗斯滤片对（ROSS-FITERs）的L或K吸收边确定罗斯滤片对的厚度通过优化计算得到，为了使每个通道的灵敏区外响应（即所测能段外响应）与通道总响应之比最小，在滤片对的第二滤片上镀上了一定厚度的第一滤片材料；为了缩减滤片表面积以增强低能滤片的抗冲击能力及方便滤片加工，能谱仪采用了小探测面积的PIN探测器（1mm2）借助此能谱仪，测量得到了喷气式z箍缩（z-pinch）等离子体辐射软X射线能谱的分布，并研究了软X射线产额随箍缩状况的变化趋势。

使用紧凑型汤姆生离子谱仪对喷气式z箍缩（z. pinch）等离子体发射的离子束能谱进行了实验研究。紧凑型汤姆生离子谱仪由入射窗、偏转电磁场、后置针孔及cR-39探测板组成。等离子体发射的离子束经前置针孔、谱仪入射窗准直后进入偏转电磁场偏转，由后置针孔射出轰击探测板形成可分辩的抛物线簇。对抛物线簇进行分析处理，得到了等离子体辐射的离子束能谱及能谱随箍缩状况的变化趋势。

The gas discharge in a gas peaking switch was experimentally studied and numerically simulated. For simulation, the discharge was divided into two phases, gas breakdown and voltage collapse. The criterion for an electron avalanche to transit to streamer was considered as the criterion of gas breakdown. The spark channel theory developed by Rompe-Weizel was used to calculate the spark resistance. It was found that the prepulse considerably lowers the voltage pulse applied to the gap. Even for a given input pulse, the voltage pulse applied to a peaking gap is different for different gap distance due to existence of a different prepulse. In this case, the breakdown voltage of a gas peaking gap depends on gas pressure and gap distance, individually. For nitrogen pressure varying from 3 MPa to 10 MPa and gap distance from 0.6mm to 1.2mm, the peak electric field higher than 2MV0cm was achieved when breakdown. The output 10% to 90% rise time, tr, varies from 145ps to 192ps. As gas pressure increases, trdecreases, which can be explained by the fact that the breakdown field increases with the increase of gas pressure. It was found in experiment that the jitter in tr could be attributed to the jitter in breakdown field. Instead of getting longer, the averaged experimental tr gets shorter as gap distance increases from 0.6mm to 1.2mm, which differs from the results of calculation and indicates there may exist something, other than electric field, that is also related to tr. The reason for this difference may lies in the inverse coefficient of spark resistance varying with gap distance. On the whole, the results from the calculations agree with the experimental ones.

Experiments were performed on an atmospheric pressure glow discharge (APGD) in an air gap between two dielectric barrier electrodes. While it is possible to get an APGD in a 2mm air gap, it is possible to get only a filament discharge in a 5mm air gap. The development of an electron avalanche in such a gap was numerically simulated. It was found that the critical applied field for a 5mm electron avalanche to transit to a streamer is equal to 35.07kVcm−1. This calculated critical applied field is in good agreement with the experimental one. The experimental and theoretical results confirm that only a filament discharge, rather than a glow discharge, can be produced in an atmospheric pressure air gap that is not less than 5mm if it is not possible to lower the breakdown field of air. A resistive barrier discharge (RBD) was theoretically analysed and the development of RBD was numerically simulated. If a kilohertz discharge is required, the parameters of the resistive layer should be in the range ρεr=(109-1011)cm. APGD in a helium gap was realized using 50Hz line power with a suitably fabricated resistive layer.