North Korea's Nuclear Weapons: Technical Issues, February 12, 2013.

摘要

This report summarizes what is known from open sources about the North Korean nuclear weapons programincluding weapons-usable fissile material and warhead estimatesand assesses current developments in achieving denuclearization. Little detailed open-source information is available about the DPRK's nuclear weapons production capabilities, warhead sophistication, the scope and success of its uranium enrichment program, or extent of its proliferation activities. In total, it is estimated that North Korea has between 30 and 50 kilograms of separated plutonium, enough for at least half a dozen nuclear weapons. While North Korea's weapons program has been plutonium-based from the start, in the past decade, intelligence emerged pointing to a second route to a bomb using highly enriched uranium. North Korea openly acknowledged a uranium enrichment program in 2009, but has said its purpose is the production of fuel for nuclear power.