“quasifission”的英文意思_释义_用法

单词

quasifission

释义

ˈquasiˌfission Nuclear Physics.
[f. quasi adv. and prefix + fission.]
A type of interaction between heavy ions in which the reaction products have kinetic energies similar to those expected for fission of a compound nucleus but an angular distribution that is quite different.
1974F. Hanappe et al. in Physical Rev. Lett. XXXII. 738/1 A new kind of reaction was observed, which seems to occur instead of complete fusion; therefore we called it ‘incomplete fusion’, but the name ‘quasifission’ is perhaps better.1976McGraw-Hill Yearbk. Sci. & Technol. 297/1 It is now believed that for these quasifission heavy-ion projectile reactions, nuclear encounters which achieve an initial distance of approach or sufficient overlap..lead to the situation where the projectile's kinetic energy is essentially dissipated, and the nuclei remain in contact for a brief period of time, exchanging large numbers of nucleons, and then begin to separate.

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