At present, to produce a pressure of 10-10 Pa by using the liquid nitrogen-cooled titanium sublimation trap in vacuum system is reliable. The authors have solved experi-mentally the problems of application of the mole...At present, to produce a pressure of 10-10 Pa by using the liquid nitrogen-cooled titanium sublimation trap in vacuum system is reliable. The authors have solved experi-mentally the problems of application of the molecule sink technology on the basis of their study on kinetic theory of gas molecule in extremely high vacuum. The glass tubular Hel-展开更多
文摘At present, to produce a pressure of 10-10 Pa by using the liquid nitrogen-cooled titanium sublimation trap in vacuum system is reliable. The authors have solved experi-mentally the problems of application of the molecule sink technology on the basis of their study on kinetic theory of gas molecule in extremely high vacuum. The glass tubular Hel-