Spherical hydrogen pellet generator for magnetic confinement fusion research

R. P. Gilliard, K. Kim, R. J. Turnbull

Research output: Contribution to journalArticlepeer-review


The design and operation of a cryogenic pellet generator is described. The device is capable of producing spherical solid hydrogen pellets of sufficient size and repetition rate to meet prospective refueling requirements of near term tokamak fusion machines. It accelerates pellets to speeds in excess of 10**2 m/s by gas dynamic drag techniques and has achieved initial injection into the APEX tokamak at Argonne National Laboratory. A discussion of gas dynamic drag acceleration techniques is provided, with an evaluation of their significance to pellet acceleration technology.

Original languageEnglish (US)
Pages (from-to)183-190
Number of pages8
JournalReview of Scientific Instruments
Issue number2
StatePublished - 1981

ASJC Scopus subject areas

  • Instrumentation


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