Gamma activation analysis A new gold standard?

摘要

First discovered in the Australian colony in 1823 by Government Surveyor James McBrien, gold has played a huge role in the development of Australia as a nation. It wasn't the first mineral mined or exported from Australia - by 1823, more than 3000 tonnes per year of coal was being mined and hand-loaded by convicts into ships at the port of Newcastle - but it played a major role in defining the country we live in today.