ECRIS2012 - List of Authors (Ma, B.H.)

Paper

Title

Page

Development Update of the LECR4 Ion Source - Dragon at IMP

133

W. Lu, B.H. Ma, L.T. Sun, H. Wang, D. Xie, X.Z. Zhang, H.W. Zhao
IMP, Lanzhou, People's Republic of China
L. Ruan, B. Xiong
IEE, Beijing, People's Republic of China

A new room temperature ECR ion source, LECR4-DRAGON to operate at 18 GHz, is under development for the SSC-LINAC project at IMP. In comparison to other room temperature ECRISs, one unique feature of LECR4-DRAGON is that its plasma chamber is of ID 126 mm that is the biggest chamber for a room temperature ECRIS and the same as the superconducting ECR ion source SECRAL. Because the project funding requests testing a different magnet cooling scheme, solid quadrate copper coils cooled by medium evaporation at about 50^oC are to be used to produce a maximum axial magnetic field of about 2.5 T at injection and 1.4 T at the extraction, which are similar to SECRAL operating at 18 GHz. Furthermore, a large bore non-Halbach permanent sextupole with staggered structure has been under fabrication which can produce a radial magnetic field reaching 1.5 T at the plasma chamber wall for operation at 18 GHz. The progress updates and discussions of this new ion source will be presented in this paper.

FRXA02

All Permanent Magnet ECR Ion Source Development and Operation Status at IMP

185

L.T. Sun, Y. Cao, J.Q. Li, J.Y. Li, B.H. Ma, H. Wang, J.W. Xia, D. Xie, W.H. Zhang, X.Z. Zhang, H.W. Zhao
IMP, Lanzhou, People's Republic of China

All permanent magnet ECR ion sources have many advantages over traditional ECR ion sources composed of several axial room temperature solenoids and one permanent magnet hexapole magnet, which make them the first choice for many heavy ion facilities and platforms. At IMP, three types of all permanent magnet ECR ion sources have been built for different applications, i.e. the very compact ECR ion source LAPECR1 for intense mono or multi charge state ion beam production, the LAPECR2 ion source installed on the 320 kV high voltage multidisciplinary platform, and the LAPECR3 ion source dedicated to C⁵⁺ beam production for the cancer therapy facility. In this paper, after a general discussion of the ion sources' design, the applications and the operation status of the IMP all permanent magnet ECR ion sources will be presented.

Slides FRXA02 [6.380 MB]

Paper	Title	Page
WEPP13	Development Update of the LECR4 Ion Source - Dragon at IMP	133
	W. Lu, B.H. Ma, L.T. Sun, H. Wang, D. Xie, X.Z. Zhang, H.W. Zhao IMP, Lanzhou, People's Republic of China L. Ruan, B. Xiong IEE, Beijing, People's Republic of China
	A new room temperature ECR ion source, LECR4-DRAGON to operate at 18 GHz, is under development for the SSC-LINAC project at IMP. In comparison to other room temperature ECRISs, one unique feature of LECR4-DRAGON is that its plasma chamber is of ID 126 mm that is the biggest chamber for a room temperature ECRIS and the same as the superconducting ECR ion source SECRAL. Because the project funding requests testing a different magnet cooling scheme, solid quadrate copper coils cooled by medium evaporation at about 50^oC are to be used to produce a maximum axial magnetic field of about 2.5 T at injection and 1.4 T at the extraction, which are similar to SECRAL operating at 18 GHz. Furthermore, a large bore non-Halbach permanent sextupole with staggered structure has been under fabrication which can produce a radial magnetic field reaching 1.5 T at the plasma chamber wall for operation at 18 GHz. The progress updates and discussions of this new ion source will be presented in this paper.

FRXA02	All Permanent Magnet ECR Ion Source Development and Operation Status at IMP	185
	L.T. Sun, Y. Cao, J.Q. Li, J.Y. Li, B.H. Ma, H. Wang, J.W. Xia, D. Xie, W.H. Zhang, X.Z. Zhang, H.W. Zhao IMP, Lanzhou, People's Republic of China
	All permanent magnet ECR ion sources have many advantages over traditional ECR ion sources composed of several axial room temperature solenoids and one permanent magnet hexapole magnet, which make them the first choice for many heavy ion facilities and platforms. At IMP, three types of all permanent magnet ECR ion sources have been built for different applications, i.e. the very compact ECR ion source LAPECR1 for intense mono or multi charge state ion beam production, the LAPECR2 ion source installed on the 320 kV high voltage multidisciplinary platform, and the LAPECR3 ion source dedicated to C⁵⁺ beam production for the cancer therapy facility. In this paper, after a general discussion of the ion sources' design, the applications and the operation status of the IMP all permanent magnet ECR ion sources will be presented.
	Slides FRXA02 [6.380 MB]