释义 |
WordReference Random House Unabridged Dictionary of American English © 2024Pa′schen-Back′ effect′ (pä′shən bäk′),USA pronunciation [Physics.]- Physicsa splitting of spectral lines observed when the source of a radiation is subjected to a strong magnetic field, caused when the vectors associated with the spin and orbital angular momentum exhibit individual rather than common precession. Cf. Zeeman effect.
- named after Friedrich Paschen (1865–1947) and Ernst Back (1881–1959), German physicists 1920–25
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