Mass spectrometers are used to measure the ratio of mass‐to‐electric charge of a molecule or atom. Standard residual gas analyzers (RGAs) may be used to sample the gas in a medium vacuum chamber by ...

The ITER Diagnostic Residual Gas Analyzer (DRGA) will measure the distribution of gas species, i.e., deuterium (D), tritium (T), and impurities, in the divertor exhaust stream and in the plasma ...