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TUP08 |
Preliminary Design of Electron Target for SRing at HIAF |
ion, electron, target, experiment |
40 |
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- J. Li, Z. Huang, L.J. Mao, M.T. Tang, S. X. Wang, J.C. Yang, X.D. Yang, H. Zhao, L.X. Zhao
IMP/CAS, Lanzhou, People's Republic of China
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A 13 Tm multifunction storage ring dedicated to nucleon and atomic experiment research - the SRing (Spectrometry Ring) is a significant part of the new heavy-ion research complex - HIAF (High Intensity heavy ion Accelerator Facility). In additional to an electron cooler and a gas internal target planned at the SRing, a beam of low temperature electron is also required to collide with the storage beam and to cool the decelerated ion beam at low energy. A magnetic adiabatic expansion is proposed to attain a low temperature by applying a 1.2 T longitudinal magnetic field upon the thermionic cathode at the electron gun. In this paper, preliminary design of the electron target is introduced.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-COOL2017-TUP08
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TUP13 |
Calculations of the Gun and Collector for Electron Cooling Systems of HIAF |
ion, electron, gun, ECR |
54 |
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- M.T. Tang, J. Li, H.J. Lu, X.M. Ma, L.J. Mao, T.L. Yan, X.D. Yang, H. Zhao, L.X. Zhao
IMP/CAS, Lanzhou, People's Republic of China
- A.V. Ivanov
BINP SB RAS, Novosibirsk, Russia
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Two electron coolers are designed for the new project HIAF, one cooler with the highest energy 50keV is for the booster ring (BRing) to decreasing the transverse emittance of injected beams and another one with the highest energy 450keV is for the high precision Spec-trometer Ring (SRing). In this paper the results of the gun and collector simulation for these two electron coolers are presented. After optimization, the gun can produce 2A profile variable electron beam. The one time collecting efficiency is higher than 99.99%. The results of electron motions in toroid calculated by a numerical method are also summarized in this paper.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-COOL2017-TUP13
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