Liquid helium cryopump and reliable opening device for a balloon-borne mass spectrometer.
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.
Ingels
J
J
Belgian Institute for Space Aeronomy, Ringlaan 3, B-1180 Brussels, Belgium.Leybold-Heraeus, GmbH CO-KG, Gaedestrasse, 5 Cologne 51, West Germany.
Arijs
E
E
Nevejans
D
D
Forth
H J
HJ
Schäfer
G
G