The super X divertor (SXD) and a compact fusion neutron source (CFNS)

Journal Article · Fri Jan 01 00:00:00 EST 2010 · Nuclear Fusion

DOI:https://doi.org/10.1088/0029-5515/50/3/035003· OSTI ID:1019365

Kotschenreuther, M ^[1]; Valanju, P ^[1]; Mahajan, S ^[1]; Zheng, L J ^[1]; Pearlstein, L D ^[2]; Bulmer, R H ^[2]; Canik, John ^[3]; Maingi, R ^[4]

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1. University of Texas, Austin
2. Lawrence Livermore National Laboratory (LLNL)
3. ORNL
4. Oak Ridge National Laboratory (ORNL)

A new magnetic geometry, the super X divertor (SXD), is invented to solve severe heat exhaust problems in high power density fusion plasmas. SXD divertor plates are moved to the largest major radii inside the TF coils, increasing the wetted area by 2-3 and the line length by 2-5. Two-dimensional fluid simulations with SOLPS (Schneider et al 2006 SOLPS 2-D edge calculation code Contrib. Plasma Phys. 46) show a several-fold decrease in divertor heat flux and plasma temperature at the plate. A small high power density tokamak using SXD is proposed, for either (1) useful fusion applications using conservative physics, such as a component test facility (CTF) or fission fusion hybrid, or (2) to develop more advanced physics modes for a pure fusion reactor in an integrated fusion environment.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1019365
• Journal Information: Nuclear Fusion, Vol. 50, Issue 3; ISSN 0029--5515
• Country of Publication: United States
• Language: English

Related Subjects

SCRAPE-OFF LAYER
SPHERICAL TOKAMAK
POWER-PLANT
PLASMA
SIMULATION
B2-EIRENE
PROGRESS
PHYSICS