Search Results (2)
Vacuum metrology and the role of surface conditions on the tangential momentum accommodation of molecules in a rarefied gas
The interactions between gas molecules and a surface strongly affect the behaviour of systems in a large array of research fields, such as vacuum science and metrology, microfluidics, particle physics, and nuclear physics. In this work, focus is given to the momentum accommodation of gas molecules. The parameter used in …
Extension of the range of primary vacuum calibration methods with the use of nonevaporable getters
Measurement of ultrahigh vacuum (UHV) and extremely high vacuum (XHV) is important in many advanced research and technology fields such as: equipment for surface analysis, particle accelerators, simulation of interstellar space, processing of advanced semiconductors, electron tubes, FE displays, etc. For traceable calibrations of UHV and XHV gauges we need …