Radiology The rare earth elements used in intensifying screens which emit green light are: A Yttrium tantalite, niobium activated B Gadolinium oxysulfide, terbium activated C Yttrium tantalite, terbium activated D Gadolinium oxysulfide, niobium activated 💡 Explanation The rare earth elements used in intensifying screens which emit green light are: ✓ Correct Answer: B. Gadolinium oxysulfide, terbium activated