ECRIS2010 - List of Keywords (sextupole)

Paper	Title	Other Keywords	Page
MOCOCK03	Design Study of a Higher Magnetic Field SC ECRIS at IMP	ECRIS, plasma, solenoid, ion	30
	D. Xie, W. Lu, X.Z. Zhang, H.W. Zhao IMP, Lanzhou, People's Republic of China
	Development of ECR ion source has demonstrated that, as the empirical scaling laws summarized, higher magnetic field with higher operation frequencies will greatly improve the source performance. Based on the great success of SECRAL, a higher magnetic field SC ECRIS is planned to meet the new accelerator demands at IMP. However, there are many practical issues in the design and construction of a higher field SC ECRIS that need to be addressed. In this paper we will present and discuss the design features of the higher field SC ECR with a maximum axial field of 7.0 T and a radial field of 3.5 T at the plasma chamber inner surface, and operating frequency up to 50 GHz.
	Slides MOCOCK03 [1.825 MB]

MOPOT011	DRAGON: a New 18 GHz RT ECR Ion Source with a Large Plasma Chamber	ECRIS, plasma, extraction, injection	58
	W. Lu, D. Xie, X.Z. Zhang, H.W. Zhao IMP, Lanzhou, People's Republic of China W. Lu Graduate School of the Chinese Academy of Sciences, Beijing, People's Republic of China L. Ruan, F.C. Song, B. Xiong, S. Yu, J. Yuan IEE, Beijing, People's Republic of China
	Building a strong radial magnetic field with a permanent hexapole magnet for an ECRIS is extremely challenging so that the conventional wisdom requires a small but not optimal plasma chamber that is typically of ID less or equal to 80 mm. A new 18 GHz RT ECR ion source, DRAGON, has been designed with a large bore permanent hexapole and source construction has begun at IMP. Its plasma chamber is of ID of 126 mm, the same as that of the superconducting ion source SECRAL, with maximum radial field strength reaching 1.5 Tesla at the plasma chamber wall. The overall magnetic strengths of DRAGON, with maximum axial fields of 2.7 Tesla at the injection and 1.3 Tesla at the extraction, are very similar to those of SECRAL operating at 18 GHz and hopefully the SECRAL performance. The source solenoid magnet coils are cooled by an evaporative coolant at about 50 degree C. In addition, the source is thickly insulated for beam extraction at 50 kV and higher voltage up to 100 kV can be explored. This article will present the design details and discussions of this new ion source.
	Poster MOPOT011 [0.563 MB]

Paper

Title

Other Keywords

Page

MOCOCK03

Design Study of a Higher Magnetic Field SC ECRIS at IMP

ECRIS, plasma, solenoid, ion

30

D. Xie, W. Lu, X.Z. Zhang, H.W. Zhao
IMP, Lanzhou, People's Republic of China

Development of ECR ion source has demonstrated that, as the empirical scaling laws summarized, higher magnetic field with higher operation frequencies will greatly improve the source performance. Based on the great success of SECRAL, a higher magnetic field SC ECRIS is planned to meet the new accelerator demands at IMP. However, there are many practical issues in the design and construction of a higher field SC ECRIS that need to be addressed. In this paper we will present and discuss the design features of the higher field SC ECR with a maximum axial field of 7.0 T and a radial field of 3.5 T at the plasma chamber inner surface, and operating frequency up to 50 GHz.

Slides MOCOCK03 [1.825 MB]

MOPOT011

DRAGON: a New 18 GHz RT ECR Ion Source with a Large Plasma Chamber

ECRIS, plasma, extraction, injection

58

W. Lu, D. Xie, X.Z. Zhang, H.W. Zhao
IMP, Lanzhou, People's Republic of China
W. Lu
Graduate School of the Chinese Academy of Sciences, Beijing, People's Republic of China
L. Ruan, F.C. Song, B. Xiong, S. Yu, J. Yuan
IEE, Beijing, People's Republic of China

Building a strong radial magnetic field with a permanent hexapole magnet for an ECRIS is extremely challenging so that the conventional wisdom requires a small but not optimal plasma chamber that is typically of ID less or equal to 80 mm. A new 18 GHz RT ECR ion source, DRAGON, has been designed with a large bore permanent hexapole and source construction has begun at IMP. Its plasma chamber is of ID of 126 mm, the same as that of the superconducting ion source SECRAL, with maximum radial field strength reaching 1.5 Tesla at the plasma chamber wall. The overall magnetic strengths of DRAGON, with maximum axial fields of 2.7 Tesla at the injection and 1.3 Tesla at the extraction, are very similar to those of SECRAL operating at 18 GHz and hopefully the SECRAL performance. The source solenoid magnet coils are cooled by an evaporative coolant at about 50 degree C. In addition, the source is thickly insulated for beam extraction at 50 kV and higher voltage up to 100 kV can be explored. This article will present the design details and discussions of this new ion source.

Poster MOPOT011 [0.563 MB]