A novel method measuring orifice conductance and testing time-of-flight mass spectrometer for water vapor–binary gas
Jian Geng,
Xiaodong Wang,
Zhengyi Ren
et al.
Abstract:The miniature time-of-flight mass spectrometer (TOF-MS) is a crucial instrument for detecting water ice in Chinese Lunar Exploration Program (CLEP), so it is necessary to compare its detection results for pure water vapor and water vapor-binary gas (such as H2O-N2, H2O-CH4, and H2O-Ar) to evaluate its water detection performance. The throughput must be calculated using the measured conductance to test the miniature TOF-MS. According to the VΔp method, the pΔt method, whose uncertainty is less than 14.2%, is pr… Show more
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