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UKAEA-STEP-PR(24)182024

"An overview of the STEP divertor design and the simple models driving the plasma exhaust scenario"
- S. Henderson
- R. Osawa
- S. Newton
- D. Moulton
- L Xiang
- M. Kryjak
- C. Ridgers
- J. Karhunen
- A. Jarvinen
- A. Hudoba
- S. Bakes
- F. Eriksson
- H. Meyer
- M. Lord
- A. Tarazona
- A. Cureton
- A. Barth
- B. Chuilon
- T. Hebrard
- S. Wang
- Z. Vizvary
- D. Vaccaro
- J. Harrison
- F. Militello
- B. Dudson
- B. Lipschultz
This paper presents a comprehensive overview of the preliminary divertor design and plasma exhaust scenario for the reactor-class Spherical Tokamak for Energy Production (STEP) project. Due to the smaller size of the machine, with a major radius less than half that of most DEMO concepts, the current design features a double-null divertor geometr…
- Published
UKAEA-STEP-PR(24)122024

"Fusing together a design for sustained fuelling and tritium self-sufficiency"
Ensuring tritium fuel self-sufficiency while maintaining continuous and high specification fuel flow to the tokamak via a low tritium inventory and controllable fuel cycle is a significant challenge to the STEP plant design. Effective and high-quality fuelling and exhausting is required to sustain and control a stable plasma, whereas fuel suffic…
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