A low speed single barrel pellet injector and its application to complementary study on ablatant in LHD
نویسندگان
چکیده
A simplified calculation considering the three dimensional helical magnetic field and B ×∇B drift was carried out to study the effect of injection location on plasmoid drift. From the calculations different injection possibilities are considered around the torus for the experiment. A low speed single barrel pellet injector has been designed for alternative injection in LHD. A pellet is being injected by the combined operation of mechanical punch and pneumatic propellant system. The shape of the pellet is cylindrical of 3 mmφ × 3 mml. Pellet injection speed ranges between 100 ∼ 600 m/s but maximum injection speed during operation is constrained to survivability through the curved guide tube. Different curved guide tubes are designed for efficient launching of pellet to particular locations of LHD.
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