Low-pressure copper vapor plasma induced by direct current supply

doi:10.16568/j.0254-6086.202103015

Abstract

Abstract: The atomization and excitation ionization processes in atomic vapor laser isotope separation technology are realized by direct current supply and copper plasma stabilized jet is obtained by using solder short circuit cathode and anode under low pressure. Under the pressure of 10^-³Pa and power of 0.9kW, the volt-ampere characteristic curve and spectral intensity diagram of stable discharge were measured. It was obtained that the electron density was about 109 cm^-³ and the electron temperature was about 0.69eV.

Key words: Direct current discharge, Copper plasma, Volt-ampere characteristic curve, Spectra

摘要： 在原子蒸气激光同位素分离技术中用直流电源实现原子化和激发电离过程，低气压下使用焊锡短路阴、阳极得到了金属铜等离子体稳定射流。在气压10^-³Pa、功率0.9kW下，测得稳定放电的伏安特性曲线和光谱强度图。通过计算得到电子密度在10⁹cm^-³左右、电子温度在0.69eV左右。

关键词: 直流放电, 铜蒸气等离子体, 伏安特性曲线, 光谱图

CLC Number:

O539

YAN Dong-xiao, LI Zhan-xian, CUI Ya-shuo, YU Jiang-tao. Low-pressure copper vapor plasma induced by direct current supply [J]. Nuclear Fusion and Plasma Physics, 2021, 41(3): 280-283.

闫东潇, 李占贤, 崔亚硕, 于江涛. 低气压直流放电金属铜等离子体 [J]. 核聚变与等离子体物理, 2021, 41(3): 280-283.

References

[1] 张德金, 刘文正, 潘利江, 等. 真空环境下指数脉冲放电等离子体特性分析 [J]. 真空, 2012, 49(3): 92-94.

[2] 刘文正, 陈修阳, 崔伟胜, 等. 锥–螺旋电极在真空等离子体生成中的作用 [J]. 高电压技术, 2017, 43(6): 1863-1867.

[3] 李和平, 王鹏, 王鑫, 等. 原子蒸气激光同位素分离研究进展综述—(Ⅰ): 理论研究 [J]. 高电压技术, 2015, 41(9): 2825-2836.

[4] 陈坚, 刘志强, 郭恒, 等. 基于气体放电等离子体射流源的模拟离子引出实验平台物理特性 [J]. 物理学报, 2018, 67(18): 52-62.

[5] 张德金, 刘文正, 潘利江, 等. 真空环境下指数脉冲放电等离子体特性分析 [J]. 真空, 2012, 49(3): 92-94.

[6] Kimio Yamada, Tsutomu Tetsuka. Ion extraction characteristics by an electric field on laser produced

barium plasma [J]. Journal of Applied Physics, 1990, 67(11): 6734-6741.

[7] Kimio Yamada, Tsutomu Tetsuka. Ion extraction characteristics on a barium plasma produced between grounded parallel plate electrodes and a positively biased upper plate electrode [J]. Journal of Applied Physics, 1991, 69(12): 8064-8071.

[8] Kimio Yamada, Tsutomu Tetsuka. Ion extraction characteristics on a barium plasma produced between alternately biased parallel plate electrodes [J]. Journal of Nuclear Science and Technology, 1991, 31(4): 301-307.

[9] 贾工普, 陈辉, 朱英臣. 真空电弧的特点及几种常用金属的真空电弧现象 [J]. 真空, 1995, 4: 28-32.

[10] 殷燕. 光谱法诊断低温等离子体的电子温度 [C]. 中国物理学会静电专业委员会: 中国物理学会第十五届静电学术年会论文集, 2009.

[11] 严建华, 潘新潮, 马增益, 等. 直流氩等离子体射流电子温度的测量 [J]. 光谱学与光谱分析, 2008, 1: 6-9.

[12] 池凌飞, 林揆训, 姚若河. Langmuir单探针诊断射频辉光放电等离子体及其数据处理 [J]. 物理学报, 2001, 50(7): 1313-1318.

[13] 张尊, 汤海滨. 氙气离子推力器束流等离子体特征参数的Langmuir单探针诊断 [J]. 高电压技术, 2013, 39(7): 1602-1608.

[14] 陈伟. 朗缪尔探针诊断系统的研制及其应用 [D]. 武汉: 华中科技大学, 2009.

[1]	YUAN Qiang-hua, LIU Shan-shan, YIN Gui-qin, QIN Biao . Discharge characteristics of capacitively coupled Ar plasmas driven by different frequencies with pressure [J]. Nuclear Fusion and Plasma Physics, 2023, 43(4): 482-488.
[2]	ZHANG Zhi-tao, DING Fang , LUO Yu, CHEN Xia-hua, YE Da-wei, ZHANG Qing, HU Zhen-hua , LUO Guang-nan. Improvement of Stark broadening algorithm based on wavelet transform [J]. Nuclear Fusion and Plasma Physics, 2023, 43(2): 212-218.
[3]	ZHANG Kai, ZHENG Dian-lin, DONG Chun-feng, SUN Ping, FENG Lei, SHI Zhong-bing . Development of the preliminary vacuum ultraviolet spectroscopy on HL-2M tokamak [J]. Nuclear Fusion and Plasma Physics, 2021, 41(s2): 527-532.
[4]	ZHENG Zhi, ZHANG Jun-min, TIAN Yun-xiang, , LU Jing. A windowed interpolation FFT harmonic detection method based on zeroing spectral-line amplitudes [J]. Nuclear Fusion and Plasma Physics, 2021, 41(3): 215-220.
[5]	WANG Jie, LIU Liang, HE Xiao-xue, CHEN Wen-jin, WEI Yan-ling, YU De-liang. Development of the poloidal charge exchange spectroscopy in the HL-2A tokamak [J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2018, 2(2): 130-137.
[6]	SHEN Yong1, DONG Jia-qi1, 2, SHI Zhong-bing1, ZHAO Kai-jun1. Design and application of a data analysis code for plasma turbulence [J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2017, 37(1): 1-7.
[7]	SHEN Yong1, DONG Jia-qi1, 2, SHI Zhong-bing1, ZHAO Kai-jun1. Data processing algorithm of three-wave coupling in plasma turbulences by spectral estimation methods [J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2015, 35(3): 193-197.
[8]	SHI Dan-dan, HUANG Xiao-jiang, ZHONG Fang-chuan. Low temperature DBD linear plasma jet [J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2012, 32(3): 283-288.
[9]	CHENG Shu-bo, YI You-gen, LIU Meng-si, ZHANG Hui-ge, WANG Zhe-bin, ZHANG Chen. Performance measurement and applications of the high-precision digital light source [J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2012, 32(1): 81-86.
[10]	HU Feng1, 2, YANG Jia-min1, WANG Chuan-ke1, ZHANG Ji-yan1, JIANG Gang2. Spectral line shift of He-like chromium in hot and dense plasmas [J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2011, 31(2): 117-121.
[11]	YANG Qin-yu, LIU Lei, DING Ke, ZHANG Jing, WANG Qiang-rui. The effect of pulsed plasma duty cycle on the characters of porous silica films [J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2010, 30(2): 189-192.
[12]	WANG Jun, WEN Xiao-qiong, YIN Li-yong, WANG De-zhen. Characterization of Raman spectroscopy of DLC films deposited on inner surface [J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2009, 29(1): 82-86.
[13]	XU Ping, LIN Shi-yao, HU Li-qun, DUAN Yan-min, SHI Yue-jiang, HT-7 experimental. Diagnoses of electron heating on HT-7 tokamak by soft X-ray spectra [J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2008, 28(3): 209-212.
[14]	YANG Wu-bao1, CAI Ze-yong1, ZHAO Zhen2, QI Lu3. Polymers preparation under methane plasma environment [J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2008, 28(3): 274-277.
[15]	GE Shuang-quan1, MA Xiao-jun2, GAO Dang-zhong. Power spectra estimation of ICF capsule surface topography [J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2007, 27(4): 348-351.