| 单词 | pressure broadening |
| 释义 | > as lemmaspressure broadening pressure broadening n. Physics pressure-dependent broadening of lines in atomic spectra, caused by collisions of excited atoms with neighbouring atoms and molecules in a gas. ΘΚΠ the world > matter > physics > electromagnetic radiation > [noun] > pressure exerted by > broadening of spectral lines pressure broadening1932 1932 Physical Rev. 39 860 The pressure shift of spectral lines, unexplained by the usual theories of pressure broadening. 1967 W. R. Hindmarsh Atomic Spectra viii. 86 The three main causes of line-broadening are: the natural width of atomic energy levels..; Doppler width..; and collision, or pressure broadening. 2003 Laser Focus World (Nexis) 1 May 107 Samples also can be interrogated at reduced pressure, which reduces interference due to pressure broadening with little loss of peak absorption strength. < as lemmas |
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