Why CT Works for Coins
Rare coins are often counterfeited using plating, hollowing, or metal substitution. CT imaging reveals internal density patterns, core composition, and hidden cavities that traditional visual inspection cannot detect. It can also identify cracks, repairs, and filled areas used to disguise damage.
Detecting Counterfeit Techniques
CT exposes density inconsistencies caused by cast fakes, added metal, or drilled-and-filled alterations.
Preserving Numismatic Value
Because CT is non destructive, collectors can authenticate coins without risking damage.
A New Standard in Numismatics
High value coins increasingly undergo CT screening before auction or grading.
Additional Radiology Topics
CT for Lottery Ticket Fraud Detection
CT for Currency and Rare Banknote Authentication