Cool, high-density regime for poloidal divertors

Technical Report · Sat Aug 01 04:00:00 EDT 1981

DOI:https://doi.org/10.2172/6289245· OSTI ID:6289245

Petravic, M; Post, D; Heifetz, D; Schmidt, J

Calculations have been performed which demonstrate the possibility of operating poloidal divertors at high densities and low temperatures. This operating regime is caused primarily by ionization of recycling neutral gas near the divertor neutralizer plate which amplifies the input particle flux thereby raising the plasma density and lowering the plasma temperature. Low temperature, high density operation of poloidal divertors would ease the design requirements for future large tokamaks such as INTOR or FED by reducing the erosion rate in the divertor and reducing the neutral density and the associated charge exchange erosion near the main plasma. This regime may have already been observed on several divertor and limiter experiments.

• Research Organization: Princeton Univ., NJ (USA). Plasma Physics Lab.
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 6289245
• Report Number(s): PPPL-1824; ON: DE81028796
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209* -- Fusion Power Plant Technology-- Component Development & Materials Testing
CHARGE EXCHANGE
CLOSED PLASMA DEVICES
DIVERTORS
OPERATION
PERFORMANCE
PLASMA DENSITY
POLOIDAL DIVERTORS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES