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Chinese Physics C> 2003, Vol. 27> Issue(10) : 914-918 

High Charge State ECR Ion Source-LECR3

  •  Institute of Modern Physics,CAS,Lanzhou 730000,China

  • A new Electron Cyclotron Resonance (ECR) ion source, which was named LECR3 (Lanzhou Electron Cyclotron Resonance ion source no. 3) and expected to provide highly charged ion beams for atomic physics research, has been constructed and under commissioning. The design of this ion source is based on the IMP 14.5GHz ECR ion source, which was named LECR2 (Lanzhou Electron Cyclotron Resonance ion source no. 2) . In the new source it was desired with double RF heating by inserting waveguide directly and aluminum chamber. Furthermore, the volume of the plasma chamber is larger than that of LECR2 so as to increase the RF power and increase beam intensity for highly charged ions. But the hexapole field on the chamber wall is kept the same value in order to compare with the performance of LECR2 ion source. The results of this ion source are obviously better than LECR2. We obtained 780 euA of 06+, 235euA of O7+ and 240euA of Ar11+ at 1100 watts of 14.5GHz RF power singly. Furthermore, in order to transmit the ion beams efficiently a new beam focusing and analyzing system was designed and constructed at the same time.
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  • References

    [1] LIU Zhan–Wen et al. High Power Laser and Particle Beams, 1996, 8(2) : 310 (in Chinese)(刘占稳等.强激光与粒子束,1996,8(2) :310)2 ZHAO Hong–Wei et al. High Energy Phys. and Nucl. Phys., 1999, 23(7) : 717 (in Chinese)(赵红卫等.高能物理与核物理,1999,23(7) :717)3 Geller R, IEEE Trans. Nucli. Sci., 1976 NS–23(2) : 9044 XIE Z Q, LYNEIS. CM, "Performance of the Upgraded LBNL AECR Ion Source", Proc. of the 13th Inter. Workshop on ECRIS, Texas A M University, USA, 1997, 16 5 LIU Zhan–Wen et al. High Energy Phys. and Nucl. Phys., 1996, 20(10) : 957 (in Chinese)(刘占稳等.高能物理与核物理,1996,20(10) :957)

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ZHANG Zi-Min, ZHAO Hong-Wei, ZHANG Xue-Zhen, GUO Xiao-Hong, LI Xi-Xia, LI Jin-Yu, FENG Yu-Cheng, WANG Hui, MA Bao-Hua, GAO Ji-Yuan, CAO Yun, SUN Liang-Ting and MA Lei. High Charge State ECR Ion Source-LECR3[J]. Chinese Physics C, 2003, 27(10): 914-918.
ZHANG Zi-Min, ZHAO Hong-Wei, ZHANG Xue-Zhen, GUO Xiao-Hong, LI Xi-Xia, LI Jin-Yu, FENG Yu-Cheng, WANG Hui, MA Bao-Hua, GAO Ji-Yuan, CAO Yun, SUN Liang-Ting and MA Lei. High Charge State ECR Ion Source-LECR3[J]. Chinese Physics C, 2003, 27(10): 914-918. shu
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Received: 2002-12-13
Revised: 1900-01-01
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High Charge State ECR Ion Source-LECR3

    Corresponding author: ZHANG Zi-Min,
  • Institute of Modern Physics,CAS,Lanzhou 730000,China
  • Received Date: 2002-12-13
  • Accepted Date: 1900-01-01
  • Available Online: 2003-10-05

Abstract: A new Electron Cyclotron Resonance (ECR) ion source, which was named LECR3 (Lanzhou Electron Cyclotron Resonance ion source no. 3) and expected to provide highly charged ion beams for atomic physics research, has been constructed and under commissioning. The design of this ion source is based on the IMP 14.5GHz ECR ion source, which was named LECR2 (Lanzhou Electron Cyclotron Resonance ion source no. 2) . In the new source it was desired with double RF heating by inserting waveguide directly and aluminum chamber. Furthermore, the volume of the plasma chamber is larger than that of LECR2 so as to increase the RF power and increase beam intensity for highly charged ions. But the hexapole field on the chamber wall is kept the same value in order to compare with the performance of LECR2 ion source. The results of this ion source are obviously better than LECR2. We obtained 780 euA of 06+, 235euA of O7+ and 240euA of Ar11+ at 1100 watts of 14.5GHz RF power singly. Furthermore, in order to transmit the ion beams efficiently a new beam focusing and analyzing system was designed and constructed at the same time.

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