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Autor:
A. Cansell, P.L.F. Hemment, Chris Jeynes, R.J. Wilson, D.J.W. Mous, M. Ma, B.J. Sealy, R. Koudijs, K.G. Stephens, J.E. Mynard, M.D. Browton
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 74:27-31
A high energy heavy ion implantation system is described which is based upon a 2 MV High Voltage Engineering Europa Van de Graaff accelerator, which incorporates an ion source rapid exchange mechanism. The design and performance are described with pa
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :630-633
The use of high energy ion implantation to dope GaAs is described in addition to applications to silicon and the disordering of multiquantum well structures for waveguide production. The specification for a new 2 MV Van de Graaff implanter and plans
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 55:335-338
A cold-cathode lateral-extraction ion source has been developed. This source has two hollow cathodes made of either graphite or titanium, which allows an increase in the arc current and a reduction in both the arc voltage and the discharge pressure.
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 300:10-14
This paper presents an extraction system with a long channel slit-formed extraction electrode and gives a theoretical calculation, from basic formulae, of the geometric parameters for the extraction system. Some numerical results from these formulae
Publikováno v:
Scopus-Elsevier
The technique of ion beam synthesis (IBS) using high doses of energetic ions has been successfully implemented to produce a variety of compounds, the physical properties of which are dependent on the implanted species and range from insulators, e.g.
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 288:303-307
This paper gives a theoretical calculation, from basic formulae, of the geometric parameters for the extraction system of an rf ion source. Some numerical results from these formulae compared favourably with experimental data, indicating that the the
Autor:
W.J. Szajnowski, K.G. Stephens
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 99:573-575
A novel ion beam profiler has been developed for measuring a two-dimensional current distribution of an ion beam. The system consists of two parallel disks rotating at different speeds and mounted in front of a single Faraday cup. The cup intercepts