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Title: Design Study of the Extraction System of the 3rd Generation ECR Ion Source

Abstract

A design study for the extraction system of the 3rd Generation super conducting ECR ion source at LBNL is presented. The magnetic design of the ion source has a mirror field of 4 T at the injection and 3 T at the extraction side and a radial field of 2.4 T at the plasma chamber wall. Therefore, the ion beam formation takes place in a strong axial magnetic field. Furthermore the axial field drops from 3 T to 0.4 T within the first 30 cm. The influence of the high magnetic field on the ion beam extraction and matching to the beam line is investigated. The extraction system is first simulated with the 2D ion trajectory code IGUN with an estimated mean charge state of the extracted ion beam. These results are then compared with the 2D code AXCEL-INP, which can simulate the extraction of ions with different charge states. Finally, the influence of the strong magnetic hexapole field is studied with the three dimensional ion optics code KOBRA. The introduced tool set can be used to optimize the extraction system of the super conducting ECR ion source.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (US)
OSTI Identifier:
7355
Report Number(s):
LBNL-42388
TRN: US0406706
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Conference
Resource Relation:
Conference: The Eighth International Conference on Heavy-Ion Accelerator Technology, Chicago IL (US), 10/05/1998--10/09/1998; Other Information: PBD: 6 Oct 1998
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 43 PARTICLE ACCELERATORS; BATTERY CHARGE STATE; CHARGE STATES; DESIGN; ECR ION SOURCES; HEAVY ION ACCELERATORS; HEXAPOLES; ION BEAMS; ION SOURCES; MAGNETIC FIELDS; MIRRORS; OPTICS; PLASMA

Citation Formats

Leitner, M A, Lyneis, C M, Taylor, C E, Wutte, D, and Xie, Z Q. Design Study of the Extraction System of the 3rd Generation ECR Ion Source. United States: N. p., 1998. Web.
Leitner, M A, Lyneis, C M, Taylor, C E, Wutte, D, & Xie, Z Q. Design Study of the Extraction System of the 3rd Generation ECR Ion Source. United States.
Leitner, M A, Lyneis, C M, Taylor, C E, Wutte, D, and Xie, Z Q. 1998. "Design Study of the Extraction System of the 3rd Generation ECR Ion Source". United States. https://www.osti.gov/servlets/purl/7355.
@article{osti_7355,
title = {Design Study of the Extraction System of the 3rd Generation ECR Ion Source},
author = {Leitner, M A and Lyneis, C M and Taylor, C E and Wutte, D and Xie, Z Q},
abstractNote = {A design study for the extraction system of the 3rd Generation super conducting ECR ion source at LBNL is presented. The magnetic design of the ion source has a mirror field of 4 T at the injection and 3 T at the extraction side and a radial field of 2.4 T at the plasma chamber wall. Therefore, the ion beam formation takes place in a strong axial magnetic field. Furthermore the axial field drops from 3 T to 0.4 T within the first 30 cm. The influence of the high magnetic field on the ion beam extraction and matching to the beam line is investigated. The extraction system is first simulated with the 2D ion trajectory code IGUN with an estimated mean charge state of the extracted ion beam. These results are then compared with the 2D code AXCEL-INP, which can simulate the extraction of ions with different charge states. Finally, the influence of the strong magnetic hexapole field is studied with the three dimensional ion optics code KOBRA. The introduced tool set can be used to optimize the extraction system of the super conducting ECR ion source.},
doi = {},
url = {https://www.osti.gov/biblio/7355}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 06 00:00:00 EDT 1998},
month = {Tue Oct 06 00:00:00 EDT 1998}
}

Conference:
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