Document Detail


36-segmented high magnetic field hexapole magnets for electron cyclotron resonance ion source.
MedLine Citation:
PMID:  17552813     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Two high magnetic field hexapoles for electron cyclotron resonance ion source (ECRIS) have successfully fabricated to provide sufficient radial magnetic confinement to the ECR plasma. The highest magnetic field at the inner pole tip of one of the magnets exceeds 1.5 T, with the inner diameter (i.d.)=74 mm. The other hexapole magnet provides more than 1.35 T magnetic field at the inner pole tip, and the i.d. is 84 mm. In this article, we discuss the necessity to have a good radial magnetic field confinement and the importance of a Halbach hexapole to a high performance ECRIS. The way to design a high magnetic field Halbach structure hexapole and one possible solution to the self-demagnetization problem are both discussed. Based on the above discussions, two high magnetic field hexapoles have been fabricated to be utilized on two high performance ECRISs in Lanzhou. The preliminary results obtained from the two ECR ion sources are given.
Authors:
L T Sun; H W Zhao; Z M Zhang; H Wang; B H Ma; X Z Zhang; X X Li; Y C Feng; J Y Li; X H Guo; Y Shang; H Y Zhao
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Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Review of scientific instruments     Volume:  78     ISSN:  0034-6748     ISO Abbreviation:  Rev Sci Instrum     Publication Date:  2007 May 
Date Detail:
Created Date:  2007-06-07     Completed Date:  2007-08-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0405571     Medline TA:  Rev Sci Instrum     Country:  United States    
Other Details:
Languages:  eng     Pagination:  053302     Citation Subset:  IM    
Affiliation:
Institute of Modern Physics, The Chinese Academy of Sciences, 730000 Lanzhou, China. sunlt@impcas.ac.cn
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MeSH Terms
Descriptor/Qualifier:
Cyclotrons / instrumentation*
Electromagnetic Fields
Electrons*
Equipment Design
Equipment Failure Analysis
Heavy Ions*
Magnetics / instrumentation*
Reproducibility of Results
Sensitivity and Specificity

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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