Mechanical design aspects of the Advanced Toroidal Facility Thomson scattering diagnostic

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:5472906

Shipley, W D; Kindsfather, R R; Rasmussen, D A

A two-dimensional Thomson scattering system has been designed for the Advanced Toroidal Facility (ATF), a torsatron experiment at the Oak Ridge National Laboratory (ORNL). The system is a modification of the Thomson scattering system used on the Impurity Study Experiment (ISX-B) tokamak. It will provide measurements of electron temperature (T/sub e/) and density (n/sub e/) at 15 points along a vertical chord. With multiple shots, a T/sub e/ and n/sub e/ map of a toroidal cross section of ATF can be obtained. The horizontal Thomson scattering viewing port is offset by 15/sup 0/ toroidally from the ports through which the vertical laser beam passes. The modifications to the ISX-B Thomson scattering system are either changes required to adapt the system to the ATF device geometry or changes that result in improvements to the original system. This paper deals with the mechanical design aspects of the laser light baffle plates that reduce the amount of extraneous light entering the plasma, the upper and lower vacuum extensions that contain the baffles and attach to the ATF vacuum vessel, the entrance window assembly, the laser dump assembly, the viewing window and shutter assembly, and the alignment target mechanism and drive used to determine the ampping of data points in the plasma cross section.

• Research Organization: Martin Marietta Energy Systems, Inc., Oak Ridge, TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5472906
• Report Number(s): CONF-871007-72; ON: DE88003287
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ATF TORSATRON
BAFFLES
CLOSED PLASMA DEVICES
CONTROL EQUIPMENT
DESIGN
EQUIPMENT
FLOW REGULATORS
INELASTIC SCATTERING
PLASMA DIAGNOSTICS
SCATTERING
STELLARATORS
THERMONUCLEAR DEVICES
THOMSON SCATTERING
TORSATRON STELLARATOR