Residual gas scattering beam lifetime is more than 100 hours, and Touschek beam lifetime is 17hours,the total beam lifetime is about 16hours (200mA/3.These.These indicate that Touschek effect is the main limitation to total beam lifetime but not residual gases.
At a typical operating pressure of 0.3 Pa in the negative ion source, the stripping loss of D− ions in VIBS is about 23%, which is about half of stripping loss in the gas insulated beam source (GIBS) that was designed in the ITER-FDR design.
Additionally, mixed metal and gas ion beams were generated by a magnetic field, which was obtained through a magnet coil located in front of anode plate and by adding gas in the discharge region.
Depending on the choice of noble gas, molecular beams in different velocity regimes can be produced.
In order to realize high-speed surface processing, a high-energy gas cluster ion beam irradiation system was developed in which high-energy Ar cluster ion beams were generated.
Therefore, several welding techniques, such as hot isostatic pressing diffusion bonding, tungsten inner gas welding, electron beam welding and laser beam welding were developed for the fabrication of cooling internals and the assembly of the blanket.
Crystals, glasses, semiconductors, gases, liquids, beams of high-energy electrons, and even gelatin doped with suitable materials can generate laser beams.
The physical interaction of a gas cluster ion beam with a surface is strikingly different from that of better-known 'monomer' ion beams.
This works by atomising liquid electronic materials into a dense aerosol, which is then focused by a sheath of gas into a beam and deposited in layers.
