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Critical Mass
(redirected from Supercriticality)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.02 sec.
Critical Mass
Radiation safety The minimum amount of material—mass of a particular radioisotope—required for it to reach ‘criticality’ and undergo a spontaneous fission chain reaction, releasing a lethal shower of neutron and gamma radiation
Research A popular term for the minimum number of persons working in related fields in a particular place, below which creative thinking and interaction may be suboptimal


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Manhattan scientists devised the implosion method of assembly, in which high explosives (lenses) were arranged to form an imploding (inward) shock wave that compressed the fissile material to supercriticality.
 
 
 
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