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          Institute: MPI für Kernphysik     Collection: Spectroscopy and Dynamics of Trapped and Stored Ions     Display Documents



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ID: 60856.0, MPI für Kernphysik / Spectroscopy and Dynamics of Trapped and Stored Ions
Electron cooling of longitudinally hot ion beams
Authors:Fadil, H.; Noda, A.; Shirai, T.; Noda, K.; Furukawa, T.; Beutelspacher, M.; Grieser, M.
Language:English
Date of Publication (YYYY-MM-DD):2004-01-21
Title of Journal:Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume:517
Issue / Number:1-3
Start Page:1
End Page:8
Copyright:Copyright © 2003 Elsevier B.V. All rights reserved.
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:The possibility of efficient electron cooling of ion beams with wide velocity spread was investigated experimentally with the storage ring TSR at MPI für Kernphysik in Heidelberg. Two different cooling methods have been studied. The results of the schemes using an induction accelerator (IndAcc) to accelerate the ion beam towards the active region of the cooling force, and the ramping of the velocity of the electron beam through the velocity range of the ion beam by changing the cathode voltage of the electron gun are presented. Both methods were tested with a carbon ion beam 12C6+ with kinetic energy of 73.3 MeV. Significant reduction of the cooling time to 0.65 and 0.35 s are achieved for "induction acceleration sweep" and "electron energy sweep" methods, respectively, compared with 2.8 s for conventional cooling.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group D. Schwalm/Acceleration and Storage Techniques (R. v. Hahn, R. Repnow, M. Grieser)
External Affiliations:Nuclear Science Research Facility, Institute for Chemical Research, Kyoto University, Gokanosho, Uji-City, Kyoto 611-0011, Japan
National Institute of Radiological Sciences, 4-9-1, Inage-Ku, Chiba-shi 263-8555, Japan
Graduate School of Science and Technology, Chiba University, Yagoi-cho, Chiba 263-8522, Japan
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