Advanced Fueling System for Steady-State Operation of a Fusion Reactor

Steady-state Advanced Tokamak scenarios rely on optimized density and pressure profiles to maximize the bootstrap current fraction. Under this mode of operation, the fuelling system must deposit small amounts of fuel where it is needed, and as often as needed, so as to compensate for fuel losses, bu...

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Bibliographic Details
Published inFusion science and technology Vol. 54; no. 1; pp. 71 - 74
Main Author Raman, Roger
Format Journal Article
LanguageEnglish
Published United States Taylor & Francis 01.07.2008
Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BOOTSTRAP CURRENT
CONSTRUCTION
DENSITY
DEPOSITS
FUELS
RELIABILITY
STEADY-STATE CONDITIONS
TOKAMAK DEVICES
TRITIUM
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Summary:Steady-state Advanced Tokamak scenarios rely on optimized density and pressure profiles to maximize the bootstrap current fraction. Under this mode of operation, the fuelling system must deposit small amounts of fuel where it is needed, and as often as needed, so as to compensate for fuel losses, but not to adversely alter the established density and pressure profiles. A precision fuelling system has the capability for controlling the fusion burn by maintaining the required pressure profile to maximize the bootstrap current fraction. An advanced fuelling system based on Compact Toroid (CT) injection has the potential to meet these needs while simultaneously simplifying the requirements of the tritium handling systems. Simpler engineering systems would reduce reactor construction and maintenance cost through increased reliability. A CT fueling system is described together with the associated tritium handling requirements.
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ISSN:1536-1055
1943-7641
DOI:10.13182/FST08-A1767