Studies of end loss from a theta pinch using a Twyman--Green interferometer. Scientific report 77-4
The transient rate of flow of plasma from the ends of a short, high density, low temperature linear theta pinch was studied experimentally and analytically. Diagnostic devices were used to study the discharge and plasma properties; these included a Rogowski coil, a magnetic field probe and a Twyman-Green double pass interferometer which was illuminated by a 7 mW He--He laser. The interferometer was used to monitor the passage of fringes with respect to time at two radial positions simultaneously by the use of a photodetector consisting of two fast silicon photodiodes with supporting circuitry. One complete fringe represented a change in number density of 2.942 x 10/sup 16/ cm/sup -3/.
- Research Organization:
- Pennsylvania State Univ., University Park (USA)
- DOE Contract Number:
- EY-76-S-02-4020
- OSTI ID:
- 5198923
- Report Number(s):
- COO-4020-4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
END EFFECTS
GAS LASERS
HELIUM-NEON LASERS
INTERFEROMETERS
LASERS
LINEAR PINCH DEVICES
LINEAR THETA PINCH DEVICES
MEASURING INSTRUMENTS
OPEN PLASMA DEVICES
PINCH DEVICES
PINCH EFFECT
PLASMA DENSITY
PLASMA DIAGNOSTICS
THERMONUCLEAR DEVICES
THETA PINCH
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
END EFFECTS
GAS LASERS
HELIUM-NEON LASERS
INTERFEROMETERS
LASERS
LINEAR PINCH DEVICES
LINEAR THETA PINCH DEVICES
MEASURING INSTRUMENTS
OPEN PLASMA DEVICES
PINCH DEVICES
PINCH EFFECT
PLASMA DENSITY
PLASMA DIAGNOSTICS
THERMONUCLEAR DEVICES
THETA PINCH