| 单词 | pair production |
| 释义 | > as lemmaspair production pair production n. Nuclear Physics the conversion of a gamma-ray photon into an electron and a positron only. ΘΚΠ the world > matter > physics > atomic physics > particle physics > particle avoiding strong interaction > electron > [noun] > conversion into electron and positron pair production1934 1934 Physical Rev. 45 137/1 For energies above twenty million volts the predicted pair production is even greater than that computed by Oppenheimer and Plesset. 1958 W. K. Mansfield Elem. Nucl. Physics v. 43 The three methods of interaction of γ-rays with matter are Compton scattering, photo-electric absorption and pair production. 1986 J. D. Barrow & F. J. Tipler Anthropic Cosmological Princ. (1988) v. 297 Large..systems appear unstable to pair production, but in practice a susceptibility to fission arises at a lower value of Z. < as lemmas |
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