Pellet Injection Technology and Its Applications on ITER

Cryogenic pellet injectors for use in fusion research have been under development at Oak Ridge National Laboratory for over 30 years. The original application of the technology was to add fuel to magnetically confined plasmas to replace D-T ions that are consumed in the fusion reactions or lost due...

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Bibliographic Details
Published inIEEE transactions on plasma science Vol. 44; no. 9; pp. 1489 - 1495
Main Authors Baylor, L. R., Combs, S. K., Duckworth, R. C., Lyttle, M. S., Meitner, S. J., Rasmussen, D. A., Maruyama, S.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.09.2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Acceleration
Disruption mitigation
Electron tubes
fuel cycle
fueling
Fuels
Fusion
Heating
Ions
Low temperature physics
Magnetic fields
Plasmas
Propulsion
Solids
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Summary:Cryogenic pellet injectors for use in fusion research have been under development at Oak Ridge National Laboratory for over 30 years. The original application of the technology was to add fuel to magnetically confined plasmas to replace D-T ions that are consumed in the fusion reactions or lost due to transport out of the confining magnetic fields. This application is still the primary use for pellet injection and is planned for implementation on the ITER burning plasma experiment. More recently, there have been additional applications for the injection of cryogenic pellets in the areas of disruption and edge-localized mode mitigation. Injectors for these applications are also being implemented for ITER, which require refinements of the technology for production and shattering of very large pellets and production of very small high repetition rate pellets, respectively. Details of these applications and injection system designs are presented.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2016.2550419