Enhanced X-ray-excited persistent luminescence in CaF 2 :Tb 3+ via interstitial Li + incorporation

Key Points

• To investigate how interstitial lithium ion doping influences persistent luminescence in terbium-doped calcium fluoride.
• Doped calcium fluoride (CaF2) with lithium ions
• Stimulated persistent luminescence using X-ray exposure
• Analyzed luminescence properties under thermal conditions
• Enhanced persistent luminescence observed with lithium ion doping
• Improved rewritable X-ray energy storage capability
• Facilitated optical readout in flexible scintillator films