Share

EIGHT-SHOT PNEUMATIC PELLET INJECTION SYSTEM FOR THE TOKAMAK FUSION TEST REACTOR.

Author(s) : COMBS S. K.

Type of article: Article

Summary

THE ACTIVE CRYOGENIC MECHANISMS CONSIST OF A SOLID HYDROGEN EXTRUDER AND A ROTATING PELLET WHEEL THAT ARE COOLED BY FLOWING LIQUID-HELIUM REFRIGERANT. THE EXTRUDER PROVIDES SOLID HYDROGEN FOR STEPWISE LOADING OF EIGHT HOLES LOCATED CIRCUMFERENTIALLY AROUND THE PELLET WHEEL. THIS DESIGN ALLOWS FOR THREE DIFFERENT PELLET DIAMETERS: 3.0 MM (THREE PELLETS), 3.5 MM (THREE PELLETS), AND 4.0 MM (TWO PELLETS) IN THE PRESENT CONFIGURATION. EACH OF THE EIGHT PELLETS CAN BE SHOT INDEPENDENTLY. DEUTERIUM PELLETS ARE ACCELERATED IN 1.0-M-LONG GUN BARRELS WITH COMPRESSED HYDROGEN GAS TO VELOCITIES IN THE RANGE 1.0-1.5 KM/S. THE PELLETS ARE TRANSPORTED TO THE PLASMA IN AN INJECTION LINE THAT INCORPORATES TWO STAGES OF GUIDE TUBES WITH INTERMEDIATE VACUUM PUMPING STATIONS.

Details

  • Original title: EIGHT-SHOT PNEUMATIC PELLET INJECTION SYSTEM FOR THE TOKAMAK FUSION TEST REACTOR.
  • Record ID : 1988-0045
  • Languages: English
  • Source: Rev. sci. Instrum. - vol. 58 - n. 7
  • Publication date: 1987
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (3)
See the source

Indexing