Development of continuous pellet injector for Large Helical Device

Author

Sato, K.N. ; Onozuka, M. ; Oda, Y. ; Sakakita, H. ; Liang, R. ; Sudo, S. ; Kaneko, H. ; Sakamoto, M. ; Goto, Satoshi

Author_Institution

Nat. Inst. for Fusion Sci., Nagoya, Japan

Volume

1

fYear

1993

fDate

11-15 Oct 1993

Firstpage

40

Abstract

Prototype continuous pellet injector has been designed and is under construction for the Large Helical Device at National Institute for Fusion Science in Japan. This injector is a centrifuge type, aiming at long-pulse pellet injection. A centrifuge pellet injector is a mechanical device that utilizes centrifugal force to accelerate solid hydrogen-isotope pellets using a high-speed rotating rotor. The injector consists of a hydrogen-isotope filament extruder, a pellet forming device, and a pellet accelerator. It is expected that pellets of 1 mm and 1.5 mm in diameter and length will be accelerated up to 800 m/sec in this system

Keywords

fusion reactor design; fusion reactor operation; fusion reactors; stellarators; Large Helical Device; centrifuge pellet injector; continuous pellet injector; high-speed rotating rotor; hydrogen-isotope filament extruder; long-pulse pellet injection; pellet accelerator; pellet forming device; solid hydrogen-isotope pellets; Acceleration; Inductors; Physics; Plasma accelerators; Plasma devices; Plasma simulation; Plasma transport processes; Solids; Steady-state; Toroidal magnetic fields;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 1993., 15th IEEE/NPSS Symposium on

Conference_Location

Hyannis, MA

Print_ISBN

0-7803-1412-3

Type

conf

DOI

10.1109/FUSION.1993.518277

Filename

518277