2018 R2 1oz Sterling-Silver Crown Computed Tomography

Description:

The 2018 South African Inventions theme features Computed Tomography (CT), invented by Allan McLeod Cormack. The CT is an imaging procedure that uses special X-ray equipment to create detailed pictures or scans of areas inside the body. It is also termed computerised tomography and computerised axial tomography (CAT). It uses computer-processed combinations of many X-ray measurements taken from different angles to produce cross-sectional (tomographic) images (virtual "slices") of specific areas of a scanned object, allowing the user to see inside the object without cutting. The 1979 Nobel Prize in Physiology or Medicine was awarded jointly to South African American physicist Allan M. Cormack and British electrical engineer Godfrey N. Hounsfield "for the development of computer assisted tomography."
This coin denominated as Two Rands (R 2) is part of the Crown and Tickey series of South African coins issued with different themes every year by the  to celebrate South Africas history and achievements.