Liquid helium cryopump and reliable opening device for a balloon-borne mass spectrometer
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The design, technical characteristics, and test and flight results of a liquid helium cryopump and an opening device operating on board a balloon-borne mass spectrometer combining a cryopump and a quadrupole mass filter are reported. The gas inlet of this mass spectrometer is opened through a simple and reliable remote-controlled system, which is also described.
CitationIngels, J.; Arijs, E.; Nevejans, D.; Forth, H.J.; Schäfer, G. (1978). Liquid helium cryopump and reliable opening device for a balloon-borne mass spectrometer. , Review of Scientific Instruments, Vol. 49, Issue 6, 782-784, DOI: 10.1063/1.1135614.