title: Development of a 125I source for its application in bone densitometry.
abstract: This paper describes a method for the preparation of (125)I sources for their use in bone densitometer. The process consists of preparation of silver pellets of size ∼2.5 mm (ϕ) × 0.6 mm (l) by 'Cold die compaction technique', palladium coating of the silver pellets, adsorption of (125)I on the palladium coated silver pellets and encapsulation source matrix in a titanium capsule [ 3 mm (ϕ) × 10 mm(l)] using Nd:YAG laser. The texture and morphology of the source matrix were examined by SEM and EDS analyses. Encapsulated sources containing (125)I activity up to ∼1.85 GBq (50 mCi) were prepared. Quality control tests that were necessary before application were performed and gave satisfactory results.
authors: Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India.
authors: Sanjay Kumar
authors: SK
authors: Saxena
authors: Yogendra
authors: Y
authors: Kumar
authors: K T
authors: KT
authors: Pillai
authors: Ashutosh
authors: A
authors: Dash
mesh_terms: D000327:Adsorption; D001842:Bone and Bones / Q000000981:diagnostic imaging*; D003720:Densitometry / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D007457:Iodine Radioisotopes; D008855:Microscopy, Electron, Scanning; D011786:Quality Control; D011859:Radiography; D013499:Surface Properties
chemical_list: D007457:Iodine Radioisotopes