Role of ions (N2+, N+) in the optical emission in nitrogen glow discharge plasma

Abstract

Abstract:

Intensity distribution of optical emission caused by collisions between ions (N₂⁺, N⁺) and nitrogen neutral ground-state molecular and the role of ions (N₂⁺, N⁺)in the optical emission of nitrogen glow discharge plasma are

investigated by a combined Monte Carlo model with electrons and the heavy particles. The various impact excitations

and optical emissions produced by ions (N₂⁺, N⁺) distribute in the cathode dark space and the light intensities

gradually increase towards the cathode, and total intensities increase with the discharge voltage. Relative to impact

excitations and emissions caused by electron, a secondary intensity maximum near the cathode is produced by the

collisions between ions (N₂⁺, N⁺) and molecule N₂, and the effect of atomic ions N⁺ on the impact emission can be

stronger than the molecular ions. When the voltage is rather low, the emission caused by the ions collisions can be

disregarded. The simulating results offer a good explanation for the experimental data of optical emission

spectroscopy under two typical kinds of N₂ glow discharge and provide reference evidences for spectroscope data

analysis in plasma diagnosis.

Key words: Nitrogen glow discharge, Mont Carlo model, Optical emission spectroscopy, Ion

摘要：

采用氮辉光放电等离子体电子与重粒子综合的Monte Carlo模型,研究了离子(N₂⁺，N⁺)与氮分子碰撞产生光辐射的强度分布及其

在氮辉光放电等离子体光辐射中的作用。两种离子产生的各种碰撞激发和辐射都分布在鞘层区内，光辐射强度向阴极方向逐渐

增加，且总强度随放电电压增加而增强。相对于电子产生的碰撞激发辐射，离子(N₂⁺，N⁺)引起的辐射在阴极附近引起次最大

光强，且原子离子N⁺的作用较分子离子N₂⁺大。当电压较低时，离子(N₂⁺，N⁺)引起的辐射可以忽略。模拟结果很好解释了两

种典型的N₂辉光放电光学发射谱的实验结果，为等离子体诊断研究中的光谱数据分析提供参考。

关键词: 氮辉光放电, Mont Carlo模拟, 光学发射谱, 离子

CLC Number:

O539

ZHANG Lian-zhu, MENG Xiu-lan. Role of ions (N₂⁺, N⁺) in the optical emission in nitrogen glow discharge plasma[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2008, 28(2): 115-120.

张连珠，孟秀兰. 离子(N₂⁺, N⁺)在氮辉光放电等离子体光辐射中的作用[J]. 核聚变与等离子体物理, 2008, 28(2): 115-120.

References

[1] Agarwal S, Hoex B, Van de Sanden M C M, et al. Absolute densities of N and excited N₂ in a N₂ plasma [J]. Appl. Phys. Lett., 2003, 83(24): 4918.

[2] Wrinski Z. Light emission from the cathode zone of DC glow discharge [J]. Vacuum, 2003, 79: 339.

[3] Bogaerts A, Gijbels R, Vlcek J. Modeling of glow discharge optical emission spectrometry: Calculation of the argon atomic optical emission spectrum [J]. Spectrochimica Acta B, 1998, 53: 1517.

[4] Bogaerts A ,Wilken L, Hoffmann V. Comparison of modeling calculation with experimental results for direct current glow discharge optical emission spectrometry [J]. Spectrochimica Acta B, 2001, 56: 551.

[5] Wrinski Z. Dissociation of nitrogen in the plasma- cathode interface of glow discharges [J]. Vacuum, 2005, 78: 641.

[6] Lofthus A, Krupenie P H. The spectrum of molecular nitrogen [J]. J. Phys. Chem. Ref. Data, 1977, 6(1): 113.

[7] Wronski Z. Study of fundamental processes affecting the structure of the cathode zone of nitrogen/titanium dc discharge [J]. J. Phys. D: Appl. Phys., 2000, 33: 414.

[8] Lebedev Yu A, Shakhatov V A. Diagnostics of nonequi- librium nitrogen plasma from the emission spectra of the second positive system of N₂ [J]. Low Temperature Plasma, 2006, 32(1): 56.

[9] Zhu X M, Pu Y K. A molecular kinetic model for the optical emission spectroscopy technique in inductively coupled nitrogen plasma [J]. Phys. Plasma, 2006, 13: 063507-1.

[10] Bastien F, Wu J H, Goguillon P, et al. Mechanism of a nitrogen abnormal glow discharge. Computation and measurements of the spatial light distribution [J]. J. Phys. D: Appl. Phys., 1990, 23: 813.

[11] 徐学基, 诸定昌. 气体放电物理 [M]. 上海: 复旦大学出版社, 1996: 103-104.

[12] Yu W, Zhang L Z, Wang J L. Monte Carlo simulation of fast electrons and heavy particles in the CDS of nitrogen dc glow discharge [J]. J. Phys. D: Appl. Phys., 2001, 34 (23): 3349.

[13] 张连珠. N₂⁺离子在氮直流辉光放电中的碰撞离解的作用 [J]. 物理学报, 2003, 52(4): 920.

[14] Phelps A V. Cross section and swarm coefficients for nitrogen ions and neutrals in N₂ and argon ions and neutrals in Ar for energies from 0.1eV to 10keV [J]. J. Phys. Chem. Ref. Data, 1990, 20(3): 557.

[15] Wrinski Z. The energy distributions of major ions in the cathode zone of a strongly abnormal nitrogen DC glow discharge [J]. Vacuum, 1998, 49 (2): 97.

Role of ions (N₂⁺, N⁺) in the optical emission in nitrogen glow discharge plasma

离子(N₂⁺, N⁺)在氮辉光放电等离子体光辐射中的作用

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

[1]	ZHANG Yi-heng, ZHAO Zi-qiang, LI Zai-xin, CAI Lai-zhong. Skyshine simulation of HL-3 tokamak and shielding analysis based on cosRMC [J]. Nuclear Fusion and Plasma Physics, 2025, 45(1): 7-12.
[2]	GU Yong-qi, ZHENG Yuan-yang, YUAN Zhong, WANG Lin, DENG Lei, LI Zhi-hu, ITER TAC Project Consortium Team. The key alignment and metrology technology during ITER PF6 large superconducting magnet coil lifting [J]. Nuclear Fusion and Plasma Physics, 2025, 45(1): 19-26.
[3]	WANG Fen, ZHANG Long, CAO Qi-xiang, ZHAO Feng-chao, ZHOU Bing, WANG Yan-ling. Research and design of nuclear safety system for magnetic confinement fusion reactor [J]. Nuclear Fusion and Plasma Physics, 2025, 45(1): 49-57.
[4]	GONG Shao-bo, ZHANG Tong-chuan, GUO Wen-ping, HOU Zhi-pei, ZHAI Wen-yan, LIU Chun-hua, DENG Bi-he, SHI Zhong-bing, ZHONG Wu-lü, XU Min, DUAN Xu-ru. Study of the laser propagation characteristics of the vertical Thomson scattering system on HL-3 tokamak [J]. Nuclear Fusion and Plasma Physics, 2025, 45(1): 64-68.
[5]	LIU Zhi-yang, WANG Yi-feng, LI Yong-liang, ZHANG Tao, WANG Min-rui, ZANG Qing, LIU Hai-qing, XU Guo-sheng. Effect of EAST density pedestal on linear peeling-ballooning mode stability [J]. Nuclear Fusion and Plasma Physics, 2025, 45(1): 69-75.
[6]	CHANG You-you, SUN You-wen, SHENG Hui, YAN Xing-ting, LI Han-hui, XIE Peng-cheng, ZHANG Wen-min, GUO Jin, MAO Shi-feng, LIU Yue-qiang, ZHANG Ling, DUAN Yan-min, LI Ying-ying, ZANG Qing, YE Min-you. Simulation of impurity transport induced by RMP stochastic magnetic field on EAST [J]. Nuclear Fusion and Plasma Physics, 2025, 45(1): 76-83.
[7]	ZHAO Ping-an, DING Fang, ZHANG Qing, YU Lin, MENG Ling-yi, HU Zhen-hua, WANG Liang, YU Yao-wei, DING Rui, LUO Guang-nan. Experimental study on the relationship between particle flow distribution and neutral gas pressure on the target plate of the upper external diverter on EAST [J]. Nuclear Fusion and Plasma Physics, 2025, 45(1): 84-90.
[8]	XU Jun-ming, LIU Hai-feng. Optimization of electromagnetic forces on practical coils of CFQS stellarato [J]. Nuclear Fusion and Plasma Physics, 2025, 45(1): 91-97.
[9]	GAO Zheng-kun, YANG Wen-jun, GONG Xue-yu, ZHONG Yi-jun. Research of the instability of internal interchange mode with different magnetic configurations [J]. Nuclear Fusion and Plasma Physics, 2025, 45(1): 104-110.
[10]	CHEN Zhen, MA He, LI Shan, LIU You-jiang, CHEN Chi-lai. Experimental study on the thrust of corona discharge ion wind [J]. Nuclear Fusion and Plasma Physics, 2025, 45(1): 111-116.
[11]	ZHANG Jin-heng, CHANG Lei, YANG Xin, ZHOU Hai-shan, LUO Guang-nan. Study on the influence of external magnetic field and antenna configuration on radio-frequency plasma microdischarge [J]. Nuclear Fusion and Plasma Physics, 2025, 45(1): 117-124.
[12]	LÜ Ling , HUA Cheng, LIANG Xin , LIAO Guang-qi. Micro-structure and properties of TiN film deposited on the barrel surface by DC cathodic vacuum arc technology [J]. Nuclear Fusion and Plasma Physics, 2024, 44(4): 380-387.
[13]	XIONG Qiu-yue, , LIU Zhi-hong, SUN Jing, , CHEN Wen-ge, YAN Chao-hui. Experimental study on modification of HS/6 glass fiber for insulation of Nb3Sn superconducting magnet [J]. Nuclear Fusion and Plasma Physics, 2024, 44(4): 388-393.
[14]	WANG Hong-zhi, PENG Jian-fei, WANG Ying-qiao, LI Hua-jun, XUAN Wei-min. Simulation study of megawatt-class supercapacitor energy storage system supplying power to central solenoid [J]. Nuclear Fusion and Plasma Physics, 2024, 44(4): 415-422.
[15]	BAN Ting, WU Bin, ZHAO Yuan-zhe, CUI Qing-long, XIE Ya-hong, WANG Ze. Design of high-speed data acquisition system for key signals of NNBI breakdown [J]. Nuclear Fusion and Plasma Physics, 2024, 44(4): 423-428.