Production MeV ion implanters for energies from 200 keV to 4 MeV

Rathmell, R.D.; Norton, G.A.

doi:10.1016/0168-583x(87)90840-8

Cited by 14 publications

(3 citation statements)

References 3 publications

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“…Li 2 ions were produced using a cesium sputtering source (SNICS II) [22] and used in a photon-ion experimental apparatus described elsewhere [23]. The Li 2 ion beam was accelerated to 11 keV, and a beam of 20-150 nA reached the interaction region.…”

mentioning

confidence: 99%

K-Shell Photodetachment ofLi−: Experiment and Theory

et al. 2001

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An experimental K-shell photodetachment study of Li(-) giving rise to doubly photoionized Li(+) ions has been carried out at the Advanced Light Source, using a collinear photon-ion beam apparatus. The experiment reveals dramatic structure, differing substantially both qualitatively and quantitatively from the corresponding processes above the 1s ionization threshold in Li and Li(+), as predicted by our enhanced R-matrix calculation. The experimental/theoretical comparison shows good agreement over some of the photon energy range, and also reveals some puzzling discrepancies.

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mentioning

confidence: 99%

K-Shell Photodetachment ofLi−: Experiment and Theory

et al. 2001

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“…We employed the ionizer-type Cs sputter ion source (SNICS II, National Electrostatics Corporation (NEC), Wisconsin, W.I., USA)) connected to a 3-MV tandem accelerator (9SDH-2, NEC) to produce negative C 60 ion beams based on conventional methods at the Takasaki Ion Accelerators for Advanced Radiation Application (TIARA) based at the National Institutes for Quantum and Radiological Science and Technology (QST-Takasaki, Takasaki Gunma, Japan). A schematic of the SNICS II ion source at TIARA is shown in Figure 1 [20]. Cs vapor is produced in the cesium oven and injected into the ionizer chamber.…”

Section: Conventional Methods (Cs Sputter)mentioning

confidence: 99%

Novel Approaches for Intensifying Negative C60 Ion Beams Using Conventional Ion Sources Installed on a Tandem Accelerator

Chiba

Usui

Hirano

et al. 2020

QuBS

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We developed novel methods for producing negative C60 ion beams at the accelerator facility Takasaki Ion Accelerators for Advanced Radiation Application (TIARA) to increase the current intensity of swift C60 ion beams accelerated to the MeV energy region using a tandem accelerator. We produced negative C60 ion beams with an intensity of 1.3 µA, which is several tens of thousands of times greater than the intensity of beams produced using conventional methods based on the Cs sputtering process. These beams were obtained by temporarily adding an ionization function based on electron attachment to an existing ion source that is widely used in tandem accelerators. The high-intensity swift C60 ion beams can be made available relatively easily to institutes that have tandem accelerators and ion sources of the type used at TIARA because there is no need to change existing ion sources or install new ones.

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“…In this scheme, the negative ions are decelerated from 15 + ε keV to the required low energies of ε keV by the sample potential. For our design, the source chosen for these negative ions was a SNICS II accelerator purchased from National Electrostatics Corp. [54][55][56][57] (with added differential pumping) to be integrated into a Tromp LEEM I [58]. It provided a beam of energy spread ∼65 eV FWHM, independent of mean energy [59].…”

Section: The Leem-ion Beam Tandemmentioning

confidence: 99%

LEEM investigations of ion beam effects on clean metal surfaces: quantitative studies of the driven steady state

Świȩch¹,

Ondrejcek²,

Flynn³

2009

J. Phys.: Condens. Matter

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The technique of low-energy electron microscopy (LEEM) pioneered by Bauer has been adapted here to the investigation of ion beam processes on crystal surfaces by the incorporation of an intense and tunable source of selectable, energetic ions into a LEEM designed by Tromp et al. In this paper we explain principles that constrain the design of this tandem instrument, to permit observation of surfaces during irradiation. We also describe experiments that probe the driven steady state of surfaces subject to the perturbation of a uniform and constant flux of self-ions. The emphasis is on the example of Pt(-) ions irradiating the Pt(111) surface. We explore a regime of linear response at elevated temperature in which the driven nucleation and universal driven growth of surface islands, and the driven cycling of Bardeen-Herring sources and other surface clocks, may be understood in a fully quantitative manner.

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Production MeV ion implanters for energies from 200 keV to 4 MeV

Cited by 14 publications

References 3 publications

K-Shell Photodetachment ofLi−: Experiment and Theory

K-Shell Photodetachment ofLi−: Experiment and Theory

Novel Approaches for Intensifying Negative C60 Ion Beams Using Conventional Ion Sources Installed on a Tandem Accelerator

LEEM investigations of ion beam effects on clean metal surfaces: quantitative studies of the driven steady state

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