Chinese Physics C > 2007, Vol. 31 > Issue(S1): 108-110

Preliminary Tests of the DECRIS-4 Ion Source

FLNR, JINR, Dubna, 141980, Russia2 BIONT, Bratislava, Slovakia

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Abstract：
The ECR ion source DECRIS-4 has been designed and constructed at the FLNR JINR to be used as a second injector of heavy multiply charged ions for the U-400 cyclotron. The design of the magnetic structure of the source was based on the idea of the so-called "magnetic plateau". The axial magnetic field is formed by three independent solenoids enclosed in separated iron yokes. As a result the superposition of the coils and hexapole magnetic fields creates the enlarged resonance volume. The first experiments showed that the source was able to produce more than 300eμA of Ar ⁸⁺when only 100W of microwave power was used. During the last experiment almost 500eμA of Ar ⁸⁺was extracted with the same power. In this paper we will present the preliminary results with other gaseous ions, such as oxygen, krypton and xenon.

References

[1]

. Bogomolov et al. Proc. of the 16th Int. Conf. On Cyclotron and their Applications, Michigan, USA, 2001. 2712. Alton G D, Smithe D N. Rev. Sci. Instr., 1994, 65: 7753. Muller L et al. Proc. of the 15th Int. Workshop on ECRI on Sources, Jyvaskyla, Finland, 2002. 354. Leporis M et al. Rev. Sci. Instr., 2006, 77(3): 03A3015. Vondrasek R C, Scott R, Pardo R C. Rev. Sci. Instr., 2006,77(3): 03A301

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V.Bekhterev ¹, S.Bogomolov ¹, A.Efremov ¹, G.Gulbekian ¹, Yu.Kostyukhov ¹,
A.Lebedev ¹, M.Leporis ², V.Loginov ¹and N.Yazvitsky ¹. Preliminary Tests of the DECRIS-4 Ion Source[J]. Chinese Physics C, 2007, 31(S1): 108-110.

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Received: 2007-05-30
Revised: 1900-01-01

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Preliminary Tests of the DECRIS-4 Ion Source

1","");" href="javascript:void(0);">V.Bekhterev¹
1","");" href="javascript:void(0);">S.Bogomolov¹
1","");" href="javascript:void(0);">A.Efremov¹
1","");" href="javascript:void(0);">G.Gulbekian¹
1","");" href="javascript:void(0);">Yu.Kostyukhov¹
A.Lebedev¹","");" href="javascript:void(0);">
A.Lebedev¹
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1","");" href="javascript:void(0);">N.Yazvitsky¹

FLNR, JINR, Dubna, 141980, Russia2 BIONT, Bratislava, Slovakia

Received Date:2007-05-30
Accepted Date:1900-01-01
Available Online:2007-01-03

Abstract:The ECR ion source DECRIS-4 has been designed and constructed at the FLNR JINR to be used as a second injector of heavy multiply charged ions for the U-400 cyclotron. The design of the magnetic structure of the source was based on the idea of the so-called "magnetic plateau". The axial magnetic field is formed by three independent solenoids enclosed in separated iron yokes. As a result the superposition of the coils and hexapole magnetic fields creates the enlarged resonance volume. The first experiments showed that the source was able to produce more than 300eμA of Ar⁸⁺when only 100W of microwave power was used. During the last experiment almost 500eμA of Ar⁸⁺was extracted with the same power. In this paper we will present the preliminary results with other gaseous ions, such as oxygen, krypton and xenon.