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NCSX Fabrication Project Scope and Completion Overview

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Detailed overview of the NCSX project milestones, equipment requirements, and readiness for First Plasma, including diagnostics, power systems, and facility control. Research and fabrication timelines and preparations outlined.

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NCSX Fabrication Project Scope and Completion Overview

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  1. NCSX Project Scope and Completion Hutch Neilson, NCSX Project Manager NCSX Conceptual Design Review Princeton, NJ May 22, 2002

  2. Timeline for Initial Research & Preparation

  3. What Defines MIE Project Scope and Completion? • Provide equipment known to be needed at first plasma. • Basic machine, including that which can’t be sensibly retrofit later. • Phase I & II diagnostics; low-power limiters. • Install 3 MW neutral beams. • Considered part of the basic facility. • Defer completion of things not needed until after e-beam mapping. • Use resources wisely. • Close out MIE with First Plasma @ IP=25 kA, B = 0.5 T. • Well-defined, accepted standard for project completion. • Tasks like e-beam mapping, NB commissioning, trim coil circuit optimization are better handled as part of operations.

  4. Fabrication Project Scope: Equipment Needed at First Plasma and Installation of 2 Existing Neutral Beams Stellarator Core (R = 1.4 m). • External magnets, vacuum vessel, limiters, cryostat. Peak ratings: B ≤ 2 T, Ip ≤ 350 kA. tflat =  0.3 s @B=1.7 T / 1.7 s @B=1.2 T Heating, Fueling, Vacuum (Auxiliary Systems) • Neutral beam injection (3 MW) installed; gas injection, torus vacuum pumping, glow discharge cleaning. Diagnostics • Magnetics, interferometer, visible cameras, magnetic field mapping equip. Power Systems • Magnet power for B = 1.5 T, Ip = 154 kA scenario; C–site AC power. Central I&C • Facility control and timing, computer network, data acquisition, control room. Facility Systems • Water, cryogenics, bakeout. Integrated System Testing and First Plasma $72M

  5. Research Preparations Will Proceed in Parallel with the Fabrication Project Scope: prepare analytical and hardware tools needed beyond first plasma and flux-surface mapping. (Follows NSTX approach.) • Maintain physics connections, collaborations with other stellarator programs. • Design and begin fabrication of upgrade hardware (diagnostics for Ohmic phase; PFCs, 350 C bake, internal trim coils, and diagnostics for NBI phase). • Plan research program in more detail and start building team as operation nears.

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