subcritical mass

subcritical mass
ikikritinė masė statusas T sritis apsauga nuo naikinimo priemonių apibrėžtis Mažesnė už kritinę skylančios medžiagos masė. Branduolinių užtaisų skylančios medžiagos masė visuomet turi būti ikikritinė, kitaip gali įvykti savaiminis branduolinis sprogimas. Tai pasiekiama mažinant skylančios medžiagos tankį (implozinis atominis užtaisas) arba ją suskaidant į kelis gabalus (patrankinis atominis užtaisas). atitikmenys: angl. subcritical mass rus. подкритическая масса

Apsaugos nuo naikinimo priemonių enciklopedinis žodynas. – Vilnius: Generolo Jono Žemaičio Lietuvos karo akademija. . 2002.

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  • subcritical mass — subkritinė masė statusas T sritis fizika atitikmenys: angl. subcritical mass vok. subkritische Masse, f rus. подкритическая масса, f pranc. masse sous critique, f …   Fizikos terminų žodynas

  • subcritical — adjective Date: 1930 1. less or lower than critical in respect to a specified factor 2. a. of insufficient size to sustain a chain reaction < a subcritical mass of fissionable material > b. designed for use with fissionable material of… …   New Collegiate Dictionary

  • subcritical — /sub krit i keuhl/, adj. 1. Physics. pertaining to a state, value, or quantity that is less than critical, esp. to a mass of radioactive material. 2. being of less than critical importance. [1940 45; SUB + CRITICAL] * * * …   Universalium

  • subcritical — adj. containing less than the critical mass (Physics); not critically important …   English contemporary dictionary

  • subcritical — adjective Physics 1》 (in nuclear physics) containing or involving less than the critical mass. 2》 (of a flow of fluid) slower than the speed at which waves travel in the fluid …   English new terms dictionary

  • subcritical — adj. Physics of less than critical mass etc …   Useful english dictionary

  • Critical mass — This article is about nuclear fission reactions. For other uses, see Critical mass (disambiguation). As part of a re creation of a 1945 criticality accident, a plutonium pit is surrounded by blocks of neutron reflective tungsten carbide. The… …   Wikipedia

  • critical mass — noun a) the amount of fissile material that is needed to support a self sustaining nuclear chain reaction b) A quantity or amount required to trigger a phenomenon. See Also: subcritical mass, supercritical mass …   Wiktionary

  • nuclear weapon — an explosive device whose destructive potential derives from the release of energy that accompanies the splitting or combining of atomic nuclei. [1945 50] * * * or atomic weapon or thermonuclear weapon Bomb or other warhead that derives its force …   Universalium

  • atomic bomb — 1. a bomb whose potency is derived from nuclear fission of atoms of fissionable material with the consequent conversion of part of their mass into energy. 2. a bomb whose explosive force comes from a chain reaction based on nuclear fission in U… …   Universalium

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