The positron lifetime spectra have been measured as a function of exposed air pressure for synthetic zeolite 13X and 3A,and as a function of calcination temperature for zeolite 10X.

• 测量了3A型及13X型沸石分子筛在不同压强空气中的正电子寿命谱，并测量了10X型分子筛在不同温度下焙烧后的寿命谱。