Abstract
Fluorescence and long lasting emission properties of Sr4Al14O25:Eu, Dy were examined under proton irradiation by varying incident energy. The fluorescence spectra have three strong peaks at 400, 480 and 570nm. The first two peaks are attributed to the luminescence of Eu2+ and exhibit the long lasting property. The peak at 570nm is attributed to the luminescence of Dy3+; it exhibits no luminescence after the irradiation has been stopped. The fluorescence intensity ratio of Eu2+/Dy3+ exhibits incident energy dependence, and its value increases with an increase in the proton energy. Radiation damages also exhibits incident energy dependence. Therefore, Sr4Al14O25:Eu, Dy exhibits a potential of being employed to identify the incident proton energy. Long lasting emission has some decay time components and the longest one is unaltered by proton energy.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
