Author: Qian, C.
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High Temperature Oven Development for Intense Metal Beam Production at IMP  
  • W. Lu, W. Huang, C. Qian, L.T. Sun, X.Z. Zhang
    IMP/CAS, Lanzhou, People's Republic of China
  As the main injector of heavy ion accelerator, ECR ion sources need to provide more and more intense highly charged refractory metallic ion beams at Institute of Modern Physics. This requires the performance of high temperature oven to be further improved so that the crucible can operate at ultra-high temperature for a long time without deformation. In order to meet these requirements, an inductive high temperature oven with ~200 kHz of heating frequency has been proposed and fabricated. The very preliminary off-line test results show that this oven can reach up to about 1800°C at 0.5 kW of AC power. In this contribution, we will discuss the structure of this high temperature oven and analyze the testing results as well.  
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THA4 Development of LECR4 Ion Source for Intense Beam Production and LECR5 for SESRI Project 188
  • C. Qian, X. Fang, Y.C. Feng, J.W. Guo, W. Huang, Z.H. Jia, X.X. Li, W. Lu, L.T. Sun, H. Wang, Y. Yang, X.Z. Zhang, H.W. Zhao
    IMP/CAS, Lanzhou, People's Republic of China
  Several intense highly charged heavy ion beams have been produced from Lanzhou ECR ion source No.4 (LECR4) since 2014. Recently an attempt to generate intense light ion beam was tested by High-B mode of LECR4 ion source. We firstly produced 8.72 emA of 4He2+ beam with 1.7 kW of 18 GHz microwave power at 30 kV extraction voltage. According to the experience of LECR4. A new room temperature ECR ion source (named LECR5) has been designed to deliver multiple charge ion beams for the Space Environment Simulation Research Infrastructure (SESRI) at Harbin Institute of Technology. It aims to produce almost all ion beams from H2+ to 209Bi32+. This article reviews the latest result of LECR4 and preliminary design of LECR5 in detail.  
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