Test Results of HIRFL-CSR Main Ring Electron Cooling Device

YANG Xiao-Dong; ZHAO Hong-Wei; WANG Zhi-Xue; BINP Electron; Cooler Group

Chinese Physics C> 2003, Vol. 27> Issue(8) : 726-730

Test Results of HIRFL-CSR Main Ring Electron Cooling Device

Institute of Modern Physics, CAS, Lanzhou 730000, China2 Budker Institute of Nuclear Physics, Russian Academy of Science, Novosibirsk 630090, Russia

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Abstract：
Electron cooling device for HIRFL-CSR main ring has been completed under the cooperation between BINP and IMP. It has three distinctive characters. Variable profile electron beam can be produced by the electron gun, the size and density distribution of electron beam can be changed. The parallelism of the magnetic field in the cooling section achieves less than 1×10^－5, in this case, the r.m.s angle deviations of the magnetic field line in horizontal and vertical direction are 7.838×10 and 8.044×10^－6 respectively. The electron beam loss is reduced, the vacuum condition is improved, and the instability of the electron beam is suppressed becanse of using of electrostatic bending plate in the toroid. The beam profile and density distribution were measured in the testbench. The characters of the gun and collector were investigated. The main test results are presented in this paper.

References

[1]

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[14]	WU Jun-Xia , XIA Jia-Wen , YANG Jian-Cheng , LIU Wei , YIN Xue-Jun , LIU Yong . Stochastic Momentum Cooling——Palmer Cooling at HIRFL-CSRm. Chinese Physics C, 2004, 28(4): 437-440.
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YANG Xiao-Dong, ZHAO Hong-Wei, WANG Zhi-Xue, BINP Electron and Cooler Group. Test Results of HIRFL-CSR Main Ring Electron Cooling Device[J]. Chinese Physics C, 2003, 27(8): 726-730.

YANG Xiao-Dong, ZHAO Hong-Wei, WANG Zhi-Xue, BINP Electron and Cooler Group. Test Results of HIRFL-CSR Main Ring Electron Cooling Device[J]. Chinese Physics C, 2003, 27(8): 726-730. shu

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Received: 2002-10-28
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Test Results of HIRFL-CSR Main Ring Electron Cooling Device

Corresponding author: YANG Xiao-Dong,

Institute of Modern Physics, CAS, Lanzhou 730000, China2 Budker Institute of Nuclear Physics, Russian Academy of Science, Novosibirsk 630090, Russia

Received Date: 2002-10-28

Accepted Date: 1900-01-01

Available Online: 2003-08-05

Abstract: Electron cooling device for HIRFL-CSR main ring has been completed under the cooperation between BINP and IMP. It has three distinctive characters. Variable profile electron beam can be produced by the electron gun, the size and density distribution of electron beam can be changed. The parallelism of the magnetic field in the cooling section achieves less than 1×10^－5, in this case, the r.m.s angle deviations of the magnetic field line in horizontal and vertical direction are 7.838×10 and 8.044×10^－6 respectively. The electron beam loss is reduced, the vacuum condition is improved, and the instability of the electron beam is suppressed becanse of using of electrostatic bending plate in the toroid. The beam profile and density distribution were measured in the testbench. The characters of the gun and collector were investigated. The main test results are presented in this paper.

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Test Results of HIRFL-CSR Main Ring Electron Cooling Device

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