fission bomb

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fission bomb

[′fish·ən ‚bäm]
(ordnance)
References in periodicals archive ?
And the Pakistanis added a nuclear weapon design as well.
report -- that Iran halted its nuclear weapon design and weaponization work, as well as its covert uranium conversion and uranium enrichment related-activities in 2003 -- have long been disputed by some European spy agencies.
The estimate defined the phrase 'nuclear weapons program' to mean nuclear weapon design and weaponization work, and covert uranium conversion-related and uranium enrichment-related work.
Appendices include the physics of nuclear weapon design, military deployments and accidents in nuclear-based military divisions, principle Soviet nuclear facilities and a chronology of nuclear development.
We assessed in our 2007 NIE on this subject that Iran's nuclear weapon design and weaponization work was halted in fall 2003, along with its covert uranium conversion and enrichment-related activities.
Civilian plutonium (often referred to as "reactor-grade" plutonium) contains in excess of 7 per cent Pu-240, a relatively unstable isotope of plutonium, which in concentrations beyond 7 per cent poses significant challenges to nuclear weapon design.
lt;p>IAEA said documents regarding a nuclear production plant, including information on nuclear weapon design, have gone missing in Libya .
The NIE notes that when referring to the nuclear weapons program, "we mean Iran's nuclear weapon design and weaponization work and covert uranium conversion-related and uranium enrichment-related work; we do not mean Iran's declared civil work related to uranium conversion and enrichment.

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