| Paper |
Title |
Other Keywords |
Page |
| WEAY04 |
Analysis of the magnetized friction force
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electron, ion, simulation, interaction-region |
210 |
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- A. V. Fedotov
BNL, Upton, Long Island, New York
- D. L. Bruhwiler
Tech-X, Boulder, Colorado
- A. O. Sidorin
JINR, Dubna, Moscow Region
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A comprehensive examination of theoretical models for the friction force, in use by the electron cooling community, was performed. Here, we present our insights about the models gained as a result of comparison between the friction force formulas and direct numerical simulations, as well as studies of the cooling process as a whole.
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| THBY01 |
Acceleration of Intense Beams of Highly-Charged Ions using Direct Plasma Injection Scheme
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ion, rfq, extraction, target |
341 |
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- A. Kondrashev
ITEP, Moscow
- R. A. Jameson, M. Okamura
RIKEN, Saitama
- T. Kanesue
Kyushu University, Fukuoka
- H. Kashiwagi
JAEA/ARTC, Gunma-ken
- K. Sakakibara
RLNR, Tokyo
- J. Tamura
TIT, Yokohama
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Laser Ion Source (LIS) is the most intense source of highly-charged ions capable to provide beams with current 10 / 100 mA and pulse durations 1 / 10 μs. Such parameters well meet requirements of single turn injection into synchrotron rings and FFAG. Few years ago Direct Plasma Injection Scheme (DPIS) was proposed to extract and accelerate intense ion beams from laser induced plasma. By this approach extraction of ions happens almost inside first acceleration cell of RFQ, eliminating severe space charge problems in LEBT and LEBT itself. About 35 mA of 12C4+ ions and 17 mA of 12C6+ ions were accelerated by RFQ up to 100 keV/u using DPIS. Amplitude of total current of carbon ions is equal to 60 mA. The latest results on 27Al and 56Fe ions acceleration using DPIS are presented. The results obtained show that DPIS is, probably, the best choice as a high current injector of highly-charged ions for FFAG.
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