中国物理B ›› 2010, Vol. 19 ›› Issue (7): 70505-070505.doi: 10.1088/1674-1056/19/7/070505

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Characterisation of the plasma density with two artificial neural network models

高向东1, 王腾2, 李炜3   

  1. (1)Faculty of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510090, China; (2)Faculty of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510090, China;School of Computer, South China Normal University, Guangzhou 510631, China; (3)School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
  • 收稿日期:2009-04-25 修回日期:2009-08-04 出版日期:2010-07-15 发布日期:2010-07-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 60375012).

Characterisation of the plasma density with two artificial neural network models

Wang Teng (王腾)ab, Gao Xiang-Dong (高向东)a, Li Wei (李炜)c   

  1. a Faculty of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510090, China; b School of Computer, South China Normal University, Guangzhou 510631, China; c School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
  • Received:2009-04-25 Revised:2009-08-04 Online:2010-07-15 Published:2010-07-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 60375012).

摘要: This paper establishes two artificial neural network models by using a multi layer perceptron algorithm and radial based function algorithm in order to predict the plasma density in a plasma system. In this model, the input layer is composed of five neurons: the radial position, the axial position, the gas pressure, the microwave power and the magnet coil current. The output layer is the target output neuron: the plasma density. The accuracy of prediction is tested with the experimental data obtained by the Langmuir probe. The effectiveness of two artificial neural network models are demonstrated, the results show good agreements with corresponding experimental data. The ability of the artificial neural network model to predict the plasma density accurately in an electron cyclotron resonance-plasma enhanced chemical vapour deposition system can be concluded, and the radial based function is more suitable than the multi layer perceptron in this work.

Abstract: This paper establishes two artificial neural network models by using a multi layer perceptron algorithm and radial based function algorithm in order to predict the plasma density in a plasma system. In this model, the input layer is composed of five neurons: the radial position, the axial position, the gas pressure, the microwave power and the magnet coil current. The output layer is the target output neuron: the plasma density. The accuracy of prediction is tested with the experimental data obtained by the Langmuir probe. The effectiveness of two artificial neural network models are demonstrated, the results show good agreements with corresponding experimental data. The ability of the artificial neural network model to predict the plasma density accurately in an electron cyclotron resonance-plasma enhanced chemical vapour deposition system can be concluded, and the radial based function is more suitable than the multi layer perceptron in this work.

Key words: plasma density, prediction, multi layer perceptron, radial based function

中图分类号:  (Ionization of plasmas)

  • 52.25.Jm
07.05.Mh (Neural networks, fuzzy logic, artificial intelligence) 52.70.Ds (Electric and magnetic measurements) 52.77.Dq (Plasma-based ion implantation and deposition) 52.50.Sw (Plasma heating by microwaves; ECR, LH, collisional heating)