Small-bore (1. 8-mm), high-firing-rate (10-Hz) version of a repeating pneumatic hydrogen pellet injector
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
Repeating pneumatic pellet injectors developed at the Oak Ridge National Laboratory (ORNL) were used for plasma fueling experiments on the Tokamak Fusion Test Reactor (TFTR) and the Joint European Torus (JET). For plasma fueling on the DIII--D tokamak, a small-bore (1.8-mm) injector has been developed and tested in the laboratory at pellet rates of up to 10 Hz and speeds of [le]1 km/s (for pulse lengths of up to 15 s). This performance represents the smallest pellet size and highest repetition rate demonstrated with an ORNL repeating pneumatic pellet injector. The design has been incorporated in the three-barrel injector that was previously used on JET; the injection system, equipped with nominal pellet sizes of 1.8-, 2.7-, and 4.0-mm diameter, has been installed on DIII--D and will be used in future plasma fueling experiments.
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6399807
- Journal Information:
- Review of Scientific Instruments; (United States), Vol. 66:3; ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
Similar Records
Operation of the repeating pneumatic injector on TFTR and design of an 8-shot deuterium pellet injector
Operation of a repeating pneumatic hydrogen pellet injector on the Tokamak Fusion Test Reactor
Related Subjects
Fu
DOUBLET-3 DEVICE
PELLET INJECTION
FUEL PELLETS
HYDROGEN ISOTOPES
PNEUMATIC CONTROLLERS
CLOSED PLASMA DEVICES
CONTROL EQUIPMENT
EQUIPMENT
ISOTOPES
PELLETS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
700460* - Fusion Technology- Heating & Fueling Systems
Fuels- (1992)