Preparation of Enriched 112Cd Target by Electroplating

Abstract

The electroplating process of the enriched 112Cd target for producing high radionuclidic purity 111In in a CS-30 cyclotron was developed. For the first time, accurate electroplating was achieved based on the track of cyclotron beam bombardment. At the same time, various factors affecting the quality of the enriched 112Cd target were studied, and then the optimal electroplating conditions were determined. Finally, the enriched 112Cd targets with a thickness greater than 65 mg/cm2 was obtained, which had smooth surface and dense and firm coating. The relationship between enriched 112Cd target thickness and yield was preliminarily explored. When the enriched 112Cd target thickness was 90 mg/cm2, the yield of 111In can reach 222 MBq/μA·h and the radionuclide purity is 99.9%.

Keywords

• enriched 112cd target
• electrodeposition
• thickness
• yield