In situ measurements of krypton in xenon gas with a quadrupole mass spectrometer following a cold-trap at a temporarily reduced pumping speed

@inproceedings{Brown2013InSM,
  title={In situ measurements of krypton in xenon gas with a quadrupole mass spectrometer following a cold-trap at a temporarily reduced pumping speed},
  author={Ethan Brown and Stephan Rosendahl and C. Huhmann and Christian Weinheimer and Hans Kettling},
  year={2013}
}
  • Ethan Brown, Stephan Rosendahl, +2 authors Hans Kettling
  • Published 2013
  • Physics
  • A new method for measuring trace amounts of krypton in xenon using a cold trap with a residual gas analyzer has been developed, which achieves an increased sensitivity by temporarily reducing the pumping speed while expending a minimal amount of xenon. By partially closing a custom built butterfly valve between the measurement chamber and the turbomolecular pump, a sensitivity of 40 ppt has been reached. This method has been tested on an ultra-pure gas sample from Air Liquide with an unknown… CONTINUE READING

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