Advanced limiter test (ALT-1) in the TEXTOR tokamak: concept and experimental design
The concept and experimental design of a pump-limiter for the TEXTOR tokamak is described. The module is constructed of stainless steel with a compound curvature head designed to limit the maximum heat flux to 300 W/cm/sup 2/. The head is made of TiC-coated graphite containing a variable-aperture slot to admit plasma to a deflector plate for ballistic pumping action. The assembly is actively pumped using Zr-Al getters with an estimated hydrogen pumping speed of 3 x 10/sup 4/ 1/s. The aspect ratio of the pump duct and the length of the plasma channel are both variable to permit study of plasma plugging, ballistic scattering, and enhanced gas-conduction effects. The module can be moved radially by 10 cm to permit its operation either as the primary or secondary limiter. Major diagnostics include Langmuir and solid state probes, bolometers, infrared thermography, thermocouples, ion gauges, manometers, and a gas mass analyzer.
- Research Organization:
- California Univ., Los Angeles (USA). School of Engineering and Applied Science; Sandia National Labs., Livermore, CA (USA); Sandia National Labs., Albuquerque, NM (USA); Kernforschungsanlage Juelich G.m.b.H. (Germany, F.R.). Inst. fuer Plasmaphysik
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5905666
- Report Number(s):
- SAND-82-2342C; CONF-830924-1; ON: DE83011296
- Resource Relation:
- Conference: 12. symposium on fusion technology, Juelich, F.R. Germany, 13 Sep 1983; Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
Similar Records
Initial ALT-I pump limiter studies on TEXOR
Langmuir probe measurements in the TEXTOR tokamak during ALT-I pump limiter experiments
Related Subjects
LIMITERS
DESIGN
TEXTOR TOKAMAK
ALUMINIUM
DUCTS
GETTERS
VACUUM SYSTEMS
ZIRCONIUM
CLOSED PLASMA DEVICES
ELEMENTS
METALS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TRANSITION ELEMENTS
700209* - Fusion Power Plant Technology- Component Development & Materials Testing