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Title: Low energy beam transport for facility for rare isotope beams driver linear particle accelerator

Abstract

The driver linac for the facility for rare isotope beams (FRIB) will provide a wide range of primary ion beams for nuclear physics research. The linac will be capable of accelerating a uranium beam to an energy of up to 200 Mev/u and delivering it to a fragmentation target with a maximum power of 400 kW. Stable ion beams will be produced by a high performance electron cyclotron resonance ion source operating at 28 GHz. The ion source will be located on a high voltage platform to reach an initial beam energy of 12 keV/u. After extraction, the ion beam will be transported vertically down to the linac tunnel in a low energy beam transport (LEBT) system and injected into a radio frequency quadrupole (RFQ) operating at a frequency of 80.5 MHz. To meet the beam power requirements, simultaneous acceleration of two-charge states will be used for heavier ions ({>=}Xe). This paper presents the layout of the FRIB LEBT and the beam dynamics in the LEBT. In particular, simulation and design of the beam line section before charge state selection will be detailed. The need to use an achromatic design for the charge state selection system and the advantage ofmore » an ion beam collimation system to limit the emittance of the beam injected into the RFQ will be discussed in this paper.« less

Authors:
; ; ; ; ;  [1]; ;  [2]
  1. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)
  2. Joint Institute for Nuclear Research, Dubna, Moscow 141980 (Russian Federation)
Publication Date:
OSTI Identifier:
22072250
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 83; Journal Issue: 2; Conference: ICIS 2011: 14. international conference on ion sources, Giardini-Naxos, Sicily (Italy), 12-16 Sep 2011; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BEAM DYNAMICS; BEAM EXTRACTION; BEAM TRANSPORT; CHARGE STATES; ECR ION SOURCES; ELECTRIC POTENTIAL; ELECTRON CYCLOTRON-RESONANCE; GHZ RANGE; ION BEAMS; KEV RANGE; LINEAR ACCELERATORS; MEV RANGE; MHZ RANGE; RADIOWAVE RADIATION; RARE EARTH NUCLEI; TARGETS; URANIUM

Citation Formats

Sun, L. T., Leitner, D., Machicoane, G., Pozdeyev, E., Winklehner, D., Zhao, Q., Smirnov, V., and Vorozhtsov, S. B.. Low energy beam transport for facility for rare isotope beams driver linear particle accelerator. United States: N. p., 2012. Web. doi:10.1063/1.3665968.
Sun, L. T., Leitner, D., Machicoane, G., Pozdeyev, E., Winklehner, D., Zhao, Q., Smirnov, V., & Vorozhtsov, S. B.. Low energy beam transport for facility for rare isotope beams driver linear particle accelerator. United States. doi:10.1063/1.3665968.
Sun, L. T., Leitner, D., Machicoane, G., Pozdeyev, E., Winklehner, D., Zhao, Q., Smirnov, V., and Vorozhtsov, S. B.. Wed . "Low energy beam transport for facility for rare isotope beams driver linear particle accelerator". United States. doi:10.1063/1.3665968.
@article{osti_22072250,
title = {Low energy beam transport for facility for rare isotope beams driver linear particle accelerator},
author = {Sun, L. T. and Leitner, D. and Machicoane, G. and Pozdeyev, E. and Winklehner, D. and Zhao, Q. and Smirnov, V. and Vorozhtsov, S. B.},
abstractNote = {The driver linac for the facility for rare isotope beams (FRIB) will provide a wide range of primary ion beams for nuclear physics research. The linac will be capable of accelerating a uranium beam to an energy of up to 200 Mev/u and delivering it to a fragmentation target with a maximum power of 400 kW. Stable ion beams will be produced by a high performance electron cyclotron resonance ion source operating at 28 GHz. The ion source will be located on a high voltage platform to reach an initial beam energy of 12 keV/u. After extraction, the ion beam will be transported vertically down to the linac tunnel in a low energy beam transport (LEBT) system and injected into a radio frequency quadrupole (RFQ) operating at a frequency of 80.5 MHz. To meet the beam power requirements, simultaneous acceleration of two-charge states will be used for heavier ions ({>=}Xe). This paper presents the layout of the FRIB LEBT and the beam dynamics in the LEBT. In particular, simulation and design of the beam line section before charge state selection will be detailed. The need to use an achromatic design for the charge state selection system and the advantage of an ion beam collimation system to limit the emittance of the beam injected into the RFQ will be discussed in this paper.},
doi = {10.1063/1.3665968},
journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 2,
volume = 83,
place = {United States},
year = {2012},
month = {2}
}