Helium Leak Measurements Using CO2 as a CarrierDetection delay defects are omitted by using helium mass spectrometer leak detector combined with several known procedures. Technique combines carbon dioxide purging, cryogenic separating helium accumulation, and use of carbon dioxide as carrier gas.
Document ID
19720000353
Acquisition Source
Headquarters
Document Type
Other - NASA Tech Brief
Authors
Moore, B. C. (McDonnell-Douglas Astronautics Co. Huntsville, AL, United States)
Camarillo, R. G. (McDonnell-Douglas Astronautics Co. Huntsville, AL, United States)
Date Acquired
August 6, 2013
Publication Date
July 1, 1972
Subject Category
Instrumentation And PhotographyEngineering (General)