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Title: High intensity ion beam injection into the 88-inch cyclotron

Abstract

Low cross section experiments to produce super-heavyelements have increased the demand for high intensity heavy ion beams atenergies of about 5 MeV/nucleon at the 88-Inch Cyclotron at the LawrenceBerkeley National Laboratory. Therefore, efforts are underway to increasethe overall ion beam transmission through the axial injection line andthe cyclotron. The ion beam emittance has been measured for various ionmasses and charge states. Beam transport simulations including spacecharge effects were performed for both of the injection line and the ionsource extraction. The relatively low nominal injection voltage of 10 kVwas found to be the main factor for ion beam losses, because of beam blowup due to space charge forces at higher intensities. Consequently,experiments and simulations have been performed at higherinjectionenergies, and it was demonstrated that the ion beams could still becentered in the cyclotron at these energies. Therefore, the new injectorion source VENUS and its ion beam transport system (currently underconstruction at the 88-Inch Cyclotron) are designed for extractionvoltages up to 30 kV.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Sponsoring Org.:
USDOE Director. Office of Science. NuclearPhysics
OSTI Identifier:
919813
Report Number(s):
LBNL-47326
Journal ID: ISSN 0094-243X; R&D Project: N88OPS; BnR: KB0402030; TRN: US200822%%563
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Conference
Resource Relation:
Journal Volume: 600; Conference: 16th International Conference on Cyclotrons andTheir Applications (CYCLOTRONS 2007), Lansing, MI, 5/13-5/172001
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BEAM DYNAMICS; BEAM TRANSPORT; CHARGE STATES; CROSS SECTIONS; CYCLOTRONS; HEAVY IONS; ION BEAM INJECTION; ION BEAMS; ION SOURCES; SPACE CHARGE; cyclotron injection emittance ECR ion sources

Citation Formats

Wutte, Daniela, Clark, Dave J., Laune, Bernard, Leitner,Matthaeus A., and Lyneis, Claude M. High intensity ion beam injection into the 88-inch cyclotron. United States: N. p., 2000. Web. doi:10.1063/1.1435300.
Wutte, Daniela, Clark, Dave J., Laune, Bernard, Leitner,Matthaeus A., & Lyneis, Claude M. High intensity ion beam injection into the 88-inch cyclotron. United States. doi:10.1063/1.1435300.
Wutte, Daniela, Clark, Dave J., Laune, Bernard, Leitner,Matthaeus A., and Lyneis, Claude M. Wed . "High intensity ion beam injection into the 88-inch cyclotron". United States. doi:10.1063/1.1435300. https://www.osti.gov/servlets/purl/919813.
@article{osti_919813,
title = {High intensity ion beam injection into the 88-inch cyclotron},
author = {Wutte, Daniela and Clark, Dave J. and Laune, Bernard and Leitner,Matthaeus A. and Lyneis, Claude M.},
abstractNote = {Low cross section experiments to produce super-heavyelements have increased the demand for high intensity heavy ion beams atenergies of about 5 MeV/nucleon at the 88-Inch Cyclotron at the LawrenceBerkeley National Laboratory. Therefore, efforts are underway to increasethe overall ion beam transmission through the axial injection line andthe cyclotron. The ion beam emittance has been measured for various ionmasses and charge states. Beam transport simulations including spacecharge effects were performed for both of the injection line and the ionsource extraction. The relatively low nominal injection voltage of 10 kVwas found to be the main factor for ion beam losses, because of beam blowup due to space charge forces at higher intensities. Consequently,experiments and simulations have been performed at higherinjectionenergies, and it was demonstrated that the ion beams could still becentered in the cyclotron at these energies. Therefore, the new injectorion source VENUS and its ion beam transport system (currently underconstruction at the 88-Inch Cyclotron) are designed for extractionvoltages up to 30 kV.},
doi = {10.1063/1.1435300},
journal = {},
issn = {0094-243X},
number = ,
volume = 600,
place = {United States},
year = {2000},
month = {5}
}

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