Fast hydrogen gas injection system for plasma physics experiments.
A system has been developed for fast injection of hydrogen gas into a vacuum system, which can produce feedback controlled flows in the range 0.1-10 Torr l/s. The unit uses a fast pressure transducer as a flow sensor. The flow will respond to an external programming voltage whose time variation is as short as several milliseconds.
Burrell
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General Atomic Company, San Diego, California 92138.