| 单词 |
de-excitation |
| 释义 |
de-exciˈtation Physics.
[de- II. 1.]
The induced transition of an atom or other quantized system from an excited state to the ground state (or a lower excited state); the action of producing such a transition.
1964Proc. Physical Soc. LXXXIII. 769 The theory of vibrational de-excitation in collisions should be most accurate for these simple molecular systems. 1968M. S. Livingston Particle Physics xii. 217 Neutrinos are also not constituents of matter, but are radiated..in a variety of deexcitation transitions of nucleonic or particle states. 1970Nature 17 Oct. 277/2 The de-excitation of a molecule and the appearance of a quantum of luminescent light is a discrete process.
So de-exˈcite v. trans., to cause the de-excitation of.
1960McGraw-Hill Encycl. Sci. & Technol. IX. 85/2 Spontaneous neutron emission takes place and serves very rapidly to de-excite the nucleus. 1964Proc. Physical Soc. LXXXIII. 769 The theory..predicts that light molecules will be effective in de-exciting vibrationally excited oxygen molecules. |
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