Slade, John Christopher
A continuously sampling mass spectrometer was designed
and constructed to detect the onset of driver gas contamination
in a free piston shock tunnel. A skimmer, which
formed a molecular beam that was ionised and analysed by a
quadrupole mass spectrometer, sampled the flow. The design
and construction of the vacuum system, the ion source, and
the mass spectrometer are discussed. The response time of
the apparatus was estimated to be 10 x 10⁻⁶ sec.
It was established that a mass...[Show more]
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