Experimental Study on a New LaMo Cathode of High Current Ion Source

TAO XiaoPing; PENG ShiXiang

Chinese Physics C> 2000, Vol. 24> Issue(8) : 767-769

Experimental Study on a New LaMo Cathode of High Current Ion Source

TAO XiaoPing ^, ,
PENG ShiXiang

National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China2 Institute of Plasma Physics, The Chinese Academy of Sciences, Hefei 230031, China

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Abstract：
The emission character and discharge character of a purchased LaMo cathode material applied in high current ion source are measured. It is found that the LaMo cathode is an efficient heat cathode emitter. When used in high current ion source, the cathode arc is in normal operation and the lifetime of cathode is longer than that of LaB₆. From the practical use of this cathode, the LaMo cathode is indecd a new kind applicable cathode of high current ion source.

References

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. LIU XueQue.Cathode Electronics(in Chinese) ,Beijing :Science Press,1957.69— 78(刘学悫 .阴极电子学 .北京 :科学出版社 ,1957.69— 78)2. Leung K N ,Pincosy P A ,Ehlers K W .Rev .Sci.Instrum .,1984 ,55(7) :1 0 64— 1 0 68 3. Goebe l D M ,Forrester A T ,Johnston S .Rev .Sci.Instrum .,1 980 ,51 (1 1 ) :1 4 68— 1 4 70 4. Tsai C C ,Menon M M ,Ryan P M et al.Rev.Sci.Instrum .,1 982 ,53(4) :41 7— 42 3

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TAO XiaoPing and PENG ShiXiang. Experimental Study on a New LaMo Cathode of High Current Ion Source[J]. Chinese Physics C, 2000, 24(8): 767-769.

TAO XiaoPing and PENG ShiXiang. Experimental Study on a New LaMo Cathode of High Current Ion Source[J]. Chinese Physics C, 2000, 24(8): 767-769. shu

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Received: 1999-05-24
Revised: 1900-01-01

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Experimental Study on a New LaMo Cathode of High Current Ion Source

TAO XiaoPing ^,
PENG ShiXiang

Corresponding author: TAO XiaoPing,

National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China2 Institute of Plasma Physics, The Chinese Academy of Sciences, Hefei 230031, China

Received Date: 1999-05-24
Accepted Date: 1900-01-01
Available Online: 2000-08-05

Abstract: The emission character and discharge character of a purchased LaMo cathode material applied in high current ion source are measured. It is found that the LaMo cathode is an efficient heat cathode emitter. When used in high current ion source, the cathode arc is in normal operation and the lifetime of cathode is longer than that of LaB₆. From the practical use of this cathode, the LaMo cathode is indecd a new kind applicable cathode of high current ion source.