Development of Multiampere Negative Ion Sources
نویسندگان
چکیده
منابع مشابه
Effect of Coulomb collision on the negative ion extraction mechanism in negative ion sources.
To improve the H(-) ion beam optics, it is necessary to understand the energy relaxation process of surface produced H(-) ions in the extraction region of Cs seeded H(-) ion sources. Coulomb collisions of charged particles have been introduced to the 2D3V-PIC (two dimension in real space and three dimension in velocity space particle-in-cell) model for the H(-) extraction by using the binary co...
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A Duoplasmatron ion source for the KOrea Multipurpose Accelerator Complex (KOMAC) linear accelerator has been constructed. High voltage tests up to 50 kV have been successfully completed. Hydrogen beam currents of up to 20 mA have been extracted at 30 kV extraction voltage. This source has shown a low normalized emittance of 0.5 π mm mrad from 90 % beam current and proton fraction over 50%. Hig...
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High energy and high power negative ion sources and accelerators have been developed for neutral beam (NB) injectors of future fusion machines such as International Thermonuclear Experimental Reactor (ITER). Using a 5-stage electrostatic accelerator, negative ion beam has been successfully accelerated up to the energy of 1 MeV, which is the required energy for ITER. Powerful negative ion beams ...
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The RF-driven negative hydrogen ion source (H , D ) for the international fusion experiment ITER has a width of 0.9 m and a height of 1.9 m and is based on a scale prototype source being in operation at the IPP test facilities BATMAN and MANITU for many years. Among the challenges to meet the required parameters in a caesiated source at a source pressure of 0.3 Pa or less is the challenge in si...
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Due to the development of reliable H ion sources, charge-exchange injection into circular accelerators has become routine. This paper reviews recent developments in negative hydrogen ion sources. The underlying physics, operating parameters and beam characteristics of selected sources will be described and compared. Figure 1: History of duoplasmatron and surface source development.
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ژورنال
عنوان ژورنال: IEEE Transactions on Nuclear Science
سال: 1981
ISSN: 0018-9499,1558-1578
DOI: 10.1109/tns.1981.4331786