This article tries to give a general idea of the technological level of North Korean nuclear weapon’s miniaturization in a bid to better understand the nuclear threat North Korea poses to the region and the globe. Through examining limited open-source materials the author tries to establish a rough estimate on the size and weight of North Korea’s nuclear bombs.
The findings are:
the exhibited atomic bomb (or the primary of the thermonuclear bomb) are consistent in size, which is about 60 cm in diameter or lower,
this puts the weight of the whole thermonuclear device at around 500 to 600 kg,
which is consistent with the estimate of North Korean ballistic missiles delivery capabilities,
this level of miniaturization is roughly on par with Chinese nuclear devices in the 1970s,
capping nuclear and missile testing may limit the confidence of the DPRK in striking the US with an intercontinental ballistic missile armed with a thermonuclear bomb (Hydrogen bomb).