Accel–decel extraction system for PIG sources

Spädtke, P.; Heymach, F.; Hollinger, R.; Leible, K.; Mayr, R.; Shi, L. Q.

doi:10.1063/1.1430866

Cited by 7 publications

(4 citation statements)

References 1 publication

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“…The extraction system composed of a triode extraction system (2-4), a magnetic shield (6) and an electrostatic deflector (5) [12,13]. The triode extraction system is chosen as usually due to its advantages in generation of low energy and high current ion beams [14]. The magnetic field of DUHOCAMIS is a high bottle-shaped field with a remote magnetic region in the beam direction.…”

Section: Extraction System and Test Benchmentioning

confidence: 99%

Discharge characteristics of the DUHOCAMIS with a high magnetic bottle-shaped field

Zhao

Guo

et al. 2014

Chinese Phys. C

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For the purpose to produce high intensity, multiply charged metal ion beams, the DUHOCAMIS (dual hollow cathode ion source for metal ions) was derived from the hot cathode Penning ion source combined with the hollow cathode sputtering experiments in 2007. It was interesting to investigate the behavior of this discharge geometry in a stronger magnetic bottle-shaped field. So a new test bench for DUHOCAMIS with a high magnetic bottle-shaped field up to 0.6 T has been set up at Peking University, on which have been made primary experiments in connection with discharge characteristics of the source. The experiments with magnetic fields from 0.13 T to 0.52 T have shown that the magnetic flux densities are very sensitive to the discharge behavior: discharge curves and ion spectra. It has been found that the slope of discharge curves in a very wide range can be controlled by changing the magnetic field as well as regulated by adjusting cathode heating power. On the other hand, by comparison of discharge curves between dual hollow cathode discharge (DHCD) mode and PIG discharge mode, it was found a much stronger magnetic effect occurred on DHCD mode. In this paper, the new test bench with ion source structure is described in detail; and main experimental results are presented and discussed, including the effects of cathode heating power and magnetic flux density on discharge characteristics, also the ion spectra. The effects of the magnetic field on the source operating are emphasized, and a unique behavior of the DUHOCAMIS operating in the high magnetic field is expected and discussed especially.

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Section: Extraction System and Test Benchmentioning

confidence: 99%

Discharge characteristics of the DUHOCAMIS with a high magnetic bottle-shaped field

Zhao

Guo

et al. 2014

Chinese Phys. C

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“…Many kinds of ion sources use a triode extraction system for extracting high density or low energy beams [8][9][10][11][12], Fig. 3 shows the geometry of the triode extraction system.…”

Section: Design Of Triode Extraction Systemmentioning

confidence: 99%

Design of triode extraction system for a dual hollow cathode ion source

Wang¹,

Zhao²,

Liu³

2011

Chinese Phys. C

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A triode extraction system is designed for a dual hollow cathode ion source being developed at the Institute of Heavy Ion Physics, Peking University. Basic parameters of the plasma are selected after examining the operation principle of the ion source, then the triode extraction system is designed and optimized by using software PBGUNS (for Particle Beam GUN Simulations). The physical design of the system is given in this paper.

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“…Many kinds of ion deceleration systems 4-6 as well as an acceleration-deceleration system 7 have been developed at several institutes to use as ion retardation or charge breeding, or to increase ion beam intensities. We also studied the acceleration-deceleration system for our cyclotron and have successfully installed it.…”

Section: Low-energy Ion Decelerator For An External Injection Line Atmentioning

confidence: 99%

Low-energy ion decelerator for an external injection line at the NIRS-930 cyclotron

Honma¹,

Hojo²,

Sakamoto³

et al. 2006

Review of Scientific Instruments

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Articles you may be interested inInvestigations on the structure of the extracted ion beam from an electron cyclotron resonance ion sourcea) Rev. Sci. Instrum. 83, 02B720 (2012); 10.1063/1.3673633 A 2.45 GHz electron cyclotron resonance proton ion source and a dual-lens low energy beam transporta) Rev. Sci. Instrum. 83, 02A329 (2012); 10.1063/1.3669802Low energy beam transport for facility for rare isotope beams driver linear particle acceleratora) Rev. Sci. Instrum. 83, 02B705 (2012); 10.1063/1.3665968Measurements of transverse ion beam emittance generated by high current ion sources at the GSI test injector facility HOSTIa) Rev. Sci. Instrum. 81, 02B707 (2010);A low-energy ion decelerator for the acceleration-deceleration system has been designed and installed in the beam-injection line of the NIRS-930 cyclotron in an attempt to increase the beam intensity from the cyclotron. With this acceleration-deceleration system, the beam intensity of 12 C 4+ ions at the cyclotron exit has been increased by about five times. The system has an advantage in that it allows us to extract a high-current ion beam from an electron cyclotron resonance ion source because, independently of the injection-energy matching to the cyclotron, a large potential difference can be applied between the source and the extractor. The voltage applied to the extractor is about −12 kV, which is reduced to the ground potential by the decelerator. The electric field distributions in the deceleration system were carefully designed using a three-dimensional field simulator. Design studies of the decelerator as well as the result of a beam test are presented.

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Accel–decel extraction system for PIG sources

Cited by 7 publications

References 1 publication

Discharge characteristics of the DUHOCAMIS with a high magnetic bottle-shaped field

Discharge characteristics of the DUHOCAMIS with a high magnetic bottle-shaped field

Design of triode extraction system for a dual hollow cathode ion source

Low-energy ion decelerator for an external injection line at the NIRS-930 cyclotron

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