User's guide to the Residual Gas Analyzer (RGA)
The Residual Gas Analyzer (RGA), a Model 100C UTI quadrupole mass spectrometer, measures the concentrations of selected masses in the Fusion Energy Division's (FED) Advanced Toroidal Facility (ATF). The RGA software is a VAX FORTRAN computer program which controls the experimental apparatus, records the raw data, performs data reduction, and plots the data. The RGA program allows data to be collected from an RGA on ATF or from either of two RGAs in the laboratory. In the laboratory, the RGA diagnostic plays an important role in outgassing studied on various candidate materials for fusion experiments. One such material, graphite, is being used more often in fusion experiments due to its ability to withstand high power loads. One of the functions of the RGA diagnostic is aid in the determination of the best grade of graphite to be used in these experiments and to study the procedures used to condition it. A procedure of particular interest involves baking the graphite sample in order to remove impurities that may be present in it. These impurities can be studied while in the ATF plasma or while being baked and outgassed in the laboratory. The Residual Gas Analyzer is a quadrupole mass spectrometer capable of scanning masses ranging in size from 1 atomic mass unit (amu) to 300 amu while under computer control. The procedure for collecting data for a particular mass is outlined.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6789740
- Report Number(s):
- ORNL/M-610; ON: DE88016885
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ATF TORSATRON
CAMAC SYSTEM
CARBON
CLOSED CONFIGURATIONS
CLOSED PLASMA DEVICES
COMPUTER ARCHITECTURE
DOCUMENT TYPES
ELEMENTAL MINERALS
ELEMENTS
GRAPHITE
IMPURITIES
MAGNETIC FIELD CONFIGURATIONS
MANUALS
MASS SPECTROMETERS
MEASURING INSTRUMENTS
MINERALS
MULTIPOLAR CONFIGURATIONS
NONMETALS
PLASMA DIAGNOSTICS
QUADRUPOLAR CONFIGURATIONS
SPECTROMETERS
STELLARATORS
THERMONUCLEAR DEVICES
TORSATRON STELLARATOR