Open AccessTheoretical and experimental studies of molecular (atomic) exchange at the installation for measuring and analyzing the residual gas medium UID-2
Author(s) -
S. A. Bushin,
S. B. Nesterov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1799/1/012004
Subject(s) - residual , transducer , monte carlo method , cathode , pressure sensor , inlet , pressure measurement , residual gas analyzer , mechanics , materials science , analytical chemistry (journal) , acoustics , computational physics , chemistry , mass spectrometry , mechanical engineering , physics , thermodynamics , computer science , engineering , mathematics , statistics , chromatography , algorithm
The paper presents the results of studies of mass transfer in the measuring circuit of the UID-2 installation (installation of pressure measurement and analysis of the residual gas medium in the electro-vacuum devices), which consists of two parallel vacuum paths, in the volumes of which are placed a total pressure transducer and a monopolar mass spectrometric sensor, limited by pairs of inlet and outlet diaphragms. Using the Monte-Carlo method, estimates of the average density of the distribution of the number of molecules within specified intervals of the number of collisions of the latter with surfaces of characteristic dimensions of these volumes are obtained.The experimental results obtained within the accuracy of the experiment are consistent with the calculated data on the protective properties of diaphragms that prevent the negative influence of the heated cathode of the gauge transducer on the gas composition of the analytical sample during the quantitative and qualitative analysis of the residual gas medium in the electro-vacuum devices based on the implementation of the destructive method.