- Ephraim Asculai
With the countries of the world looking on, Iran reached its next serious milestone: the accumulation of enough low enriched uranium (LEU) to enable it to further enrich it and produce one Significant Quantity (S.Q.), or 25 kilograms, of high enriched uranium (HEU). This is considered the quantity that is sufficient for the production of one core for an HEU-based nuclear explosive device. The Iranians reached this milestone some months earlier than expected, due mainly to their efficiency in installing and operating a large number of gas centrifuges, the machines that perform the enrichment operation.
