Fifteen‐centimeter‐diameter UHV transfer system for remote plasma‐wall interaction experiments

Autor: L.C. Emerson, R. E. Clausing, R. A. Langley, J. E. Simpkins, T. C. Domm, L. Heatherly
Rok vydání: 1980
Předmět:
Zdroj: Journal of Vacuum Science and Technology. 17:709-713
ISSN: 0022-5355
Popis: A versatile UHV apparatus is described which permits large (up to 10×10 cm) sample arrays or entire experiments to be inserted from air into an operating tokamak. This can be accomplished without perturbing the tokamak vacuum. Samples or experiments may be exposed in the tokamak for studies of plasma‐wall interactions and removed at any time without requiring tokamak shutdown. Samples or experiments may be accurately positioned in the region between the vacuum wall and the plasma limiter remotely. The apparatus provides up to 20 electrical connections for thermocouples, heaters, and signal leads. It also provides linear and rotary mechanical motion for operating experiments sychronized to tokamak discharges. Experiments or samples may be prepared off site and loaded into the transfer system under vacuum. A surface analysis station integral with the transfer system permits individual sample preparation, characterization, and analysis before and after plasma exposures.
Databáze: OpenAIRE