Cryopumps for JT-60 neutral beam injectors.
نویسندگان
چکیده
منابع مشابه
Demonstration of 500 keV beam acceleration on JT-60 negative-ion-based neutral beam injector
Hydrogen negative ion beams of 486 keV, 2.8A and 507 keV, 1A have been successfully produced in the JT-60U negative ion source with multi aperture, multi grid accelerator of three stages. This is the first accomplishment of the H beam acceleration up to 500 keV at high-current of > 1 A. These successful productions of the high-energy beams at high current have been achieved by overcoming a poor...
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Technologies producing high current density (>20mA/cm2) negative ions at a low operating gas pressure (<0.3Pa) has been established. Reduction of the gas pressure is efficient to improve the acceleration efficiency of neutral beam injectors. Beam optics in a multi-aperture, multi-stage electrostatic accelerator has been studied using a 400keV negative ion source. It was found that the ion beam ...
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ژورنال
عنوان ژورنال: SHINKU
سال: 1988
ISSN: 0559-8516,1880-9413
DOI: 10.3131/jvsj.31.554