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《High Power Laser and Particle Beams》 2007-12
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Plasma density measurement of electron cyclotron resonance ion source for neutron generator

YUAN Yu-fei1,2,MENG Lin1,ZHOU Chang-geng2,HU Yong-hong2,ZHANG Qin-long2(1.School of Physical Electronics,University of Electronic Science and Technology of China,Chengdu 610054,China;2.Institute of Nuclear Physics and Chemistry,CAEP,P.O.Box 919-213,Mianyang 621900,China)  
It is a traditional method to diagnose electron-cyclotron-resonance(ECR) plasma source,using a single probe to measure the current-voltage curve of the plasma,based on which and theoretic formula the plasma density can be computed.The article adopts a Langmuir probe having a role of emission electrons to measure two different current-voltage curves with and without emission.It is ease to get the plasma potential via the inflexion of the two curves and compute directly various physical quantities by the assistant computor,such as electron temperature,electron/ion density,plasma potential etc.The deviation is about percent 1.8 between the measurement results by traditional and the new method,but the latter has higher efficiency.
【Fund】: 国家863计划项目资助课题
【CateGory Index】: O536
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