H-1NF

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The H-1NF (or H-1 Australian Plasma Fusion Research Facility) was a research institute of the H-1 heliac, a large stellarator device located in the ANU Research School of Physics at Canberra, Australia. [1] [2] It was established when the H-1 heliac was promoted to a national facility in 1996, adopting H-1NF as its facility name ("H-1" from the stellarator and "NF" for National Facility). [3] In 2022 the H-1 heliac was disassembled before being shipped to its new home in China.

Contents

H-1 heliac stellarator

H-1 heliac
H1 Heliac.jpg
Device type Stellarator
Location Canberra, Australia
Technical specifications
Major radius1.0 m (3 ft 3 in)
Minor radius0.2 m (7.9 in)
Magnetic field 0.5 T (5,000 G)
History
Year(s) of operation1992–2022

The H-1 flexible Heliac is a three field-period helical axis stellarator. Optimisation of the H-1 power supplies for low current ripple allows precise control of the ratio of secondary (helical, vertical) coil to primary (poloidal, toroidal) coil currents, resulting in a finely tunable magnetic geometry. Slight variation in the current ratio between shots (plasma discharges) in a sequence corresponds to a high resolution parameter scan through magnetic configurations (i.e.: rotational transform profile, magnetic well). The programmable control system allows for repetition rates of around 30 shots per hour, limited by data acquisition time and magnet cooling time.

Stated objectives

References

  1. "Australian Plasma Fusion Research Facility". ANU College of Science. Archived from the original on 2020-04-23. Retrieved 2020-06-20.
  2. "Fusion Power". Australian National University. 2013-01-04. Archived from the original on 2020-06-22. Retrieved 2020-06-20.
  3. INIS Repository Search - Single Result. Japan Society of Plasma Science and Nuclear Fusion Research. 1997. ISBN   978-4-9900586-1-6 . Retrieved 2020-06-20.{{cite book}}: |website= ignored (help)