王新新
长期从事气体放电等离子体和脉冲功率技术的研究。
个性化签名
- 姓名:王新新
- 目前身份:
- 担任导师情况:
- 学位:
-
学术头衔:
博士生导师
- 职称:-
-
学科领域:
高电压工程
- 研究兴趣:长期从事气体放电等离子体和脉冲功率技术的研究。
1978年考入清华大学电机工程系高电压专业,1983年、1986年、1990年分别获工学学士、硕士和博士学位。1990年至1992年在中国科学院物理研究所作博士后。1992年至今在清华大学电机系工作,现为教授、博士生导师、气体放电实验室主任。目前正在讲授研究生课程“气体放电”、“脉冲功率技术基础”。
1994年至1997年先后在德国斯图加特大学等离子体研究所、达姆斯达特大学应用物理研究所、杜塞尔多夫大学实验物理研究所进行合作研究。长期从事气体放电等离子体和脉冲功率技术的研究,先后进行过的研究有:等离子体焦点、非中性等离子体、细管放电软X射线激光、重复频率MARX发生器、喷气Z箍缩等离子体、大气压辉光放电、亚纳秒气体开光、高电压强电流复合波发生器。作为负责人主持过的项目包括:国家自然科学基金重点项目、国家自然科学基金面上项目、863项目、教育部重点科研项目、国防预研基金项目、教育部留学回国人员科研启动基金项目、教育部优秀年轻教师基金、教育部博士点基金项目、高等学校骨干教师资助计划项目、博士后科研基金项目等。第1或2作者发表科技论文70余篇,近五年的代表性论文附后。
-
主页访问
3971
-
关注数
0
-
成果阅读
493
-
成果数
9
王新新, 邹晓兵, 张贵新, 韩旻, 罗承沐
物理学报,55(3)1289~1294,-0001,():
-1年11月30日
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。
z箍缩等离子体,, 罗斯滤片,, 软X射线能谱
-
35浏览
-
0点赞
-
0收藏
-
0分享
-
151下载
-
0评论
-
引用
王新新, 邹晓兵, 罗承沐, 韩雯
物理学报,54(5):2133~2137,-0001,():
-1年11月30日
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。
z箍缩等离子体, 紧凑型汤姆生谱仪, 离子束能谱
-
118浏览
-
0点赞
-
0收藏
-
0分享
-
70下载
-
0评论
-
引用
王新新, 芦明泽, 蒲以康
物理学报,5l(12):1~8,-0001,():
-1年11月30日
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.
大气压辉光放电, 电子雪崩, 流注
-
71浏览
-
0点赞
-
0收藏
-
0分享
-
375下载
-
0评论
-
引用
【期刊论文】Effect of the Cavity Structure on the Discharge Features of Pseudospark Switches
王新新, Chengmu Luo, Xinxin Wang, Huiliang Zhao, and Zifeng Xie
IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 30, NO.5, OCTOBER 2002,-0001,():
-1年11月30日
The cavity structure of the anode and the cathode of a pseudospark switch is an important factor for its performances. When the cathode has a cavity structure, the electric erosion on the cathode and anode is small and a concentric ring-shaped erosion pattern is observed at the central area around the apertures of both electrodes. Without the cathode cavity, the erosion becomes stronger, and the patterns become irregular and unstable. Several kinds of electrode structure have been designed and investigated. Among them, a unique cavity structure of intermediate floating electrode in pseudospark switch has a good performance. This configuration could reduce the erosion on the electrodes and increase the selfbreakdown voltage of the pseudospark switches up to 80kV. In this paper, we have studied the influence of the electrode structure on the erosion of the electrode and the selfbreakdown characteristic of the switches.
Breakdown voltage,, gas discharge,, hollow cathode structure,, pseudospark.,
-
67浏览
-
0点赞
-
0收藏
-
0分享
-
214下载
-
0评论
-
引用
【期刊论文】Measuring the Gas Flow From a Supersonic Nozzle Used in a 1.5-MA Gas Puff Z Pinch
王新新, Xiaobing Zou, Xinxin Wang, Chengmu Luo, and Min Han
IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 30, NO.2, APRIL 2002,-0001,():
-1年11月30日
A supersonic nozzle for a 1.5-MA gas puff pinch was designed and the gas flow injected out from the nozzle was measured. A miniature ionization gauge was developed to measure the density profile of the gas shell and two pressure transducers were used for determining the Mach number of the gas flow. It was found that the gas flow is not distributed symmetrically about 0, the mean radius of the exit aperture, and the radial location for the peak of the density profile moves inwards as time goes on. When the plenum pressure is 5atm, the maximum line mass density measured was 43g/cm and the Mach number of the gas flow deduced from experiments is 4.3, which is close to the expectation: a line mass density of about 50g/cm and a Mach number higher than 4. The measurements indicate that if a plenum opens into a large dead volume via a finite opening valve in a gas-puff system it will not produce a steady-state solution. Then, any agreement between the measurements and the calculations based on the steady state should not be expected.
Ionization gauge,, pressure transducer,, supersonic nozzle,, pinch.,
-
38浏览
-
0点赞
-
0收藏
-
0分享
-
220下载
-
0评论
-
引用
【期刊论文】A three-frame Mach-Zehnder interferometer for measuring dense magnetized plasmas
王新新, Xinxin Wang, a), Xiaobing Zou, Zhen Liu, Min Han, Chengmu Luo, and Ruili Ma
Rev. Sci. Instrum., Vol. 74, No.3, March 2003,-0001,():
-1年11月30日
A three-frame Mach-Zehnder interferometer TFMZI was developed for taking three pictures of the imploding plasma produced by one shot of fast pulsed discharge. TFMZI consists of a YAG laser, a beam splitter, and a Mach-Zehnder interferometer. By passing through the beam splitter the laser beam was split into three beams with an interbeam delay of 13ns and each laser beam will give a snapshot of the implosion state. The measurements with the TFMZI were conducted on a small gas-puff z-pinch device and gave good results. In principle an upgraded four or more frame Mach-Zehnder interferometer could be constructed if much improvement was made on the TFMZI.
-
25浏览
-
0点赞
-
0收藏
-
0分享
-
77下载
-
0评论
-
引用
【期刊论文】Study on an atmospheric pressure glow discharge
王新新, Xinxin Wang, Chengrong Li, Mingze Lu and Yikang Pu
Plasma Sources Sci. Technol. 12(2003)358-361,-0001,():
-1年11月30日
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.
-
60浏览
-
0点赞
-
0收藏
-
0分享
-
72下载
-
0评论
-
引用
【期刊论文】Experimental study of gas-puff z-pinch plasma
王新新, Xiaobing Zou, Xinxin Wang, Chengmu Luo and Min Han
Plasma Sources Sci. Technol. 14(2005)268-272,-0001,():
-1年11月30日
A small neon gas-puff z-pinch device was constructed, and the plasma implosion and its radiation characteristics were studied experimentally. The plasma implosion was investigated using a three-frame Mach-Zehnder interferometer (TFMZI) that is capable of taking three pictures (5ns exposure and 13ns interpicture delay) within a single z-pinch shot. Thermopiles were also used in the experiments with the TFMZI to study the correlation between the total energy of x-ray emission and the plasma implosion. The ion beams from the z-pinch plasma were analysed using a compact Thomson spectrometer. Based on the experiments, the imploding velocity and electron density of the plasma shell were obtained, a conclusion that a nearly uniform and symmetric imploding plasma shell would emit a higher x-ray yield than an asymmetric one was drawn and the charge state resolved energy spectra of ion beams emitted from the z-pinch plasma were plotted.
-
39浏览
-
0点赞
-
0收藏
-
0分享
-
110下载
-
0评论
-
引用
【期刊论文】The gas discharge in a gas peaking switch
王新新, XINXIN WANG, YUAN HU, and XINHAI SONG
Laser and Particle Beams (2005), 23, 1-6. Printed in the USA.,-0001,():
-1年11月30日
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.
Electron avalanche, Gas breakdown, Peaking switch, Spark resistance, Streamer
-
40浏览
-
0点赞
-
0收藏
-
0分享
-
109下载
-
0评论
-
引用