单词 | Bethe-Heitler theory |
释义 | Bethe-Heitler theory [¦bet·ǝ `hīt·lǝr ´thē·ǝ·rē] NUCLEONICS A theory for the energy loss of charged particles passing through matter, based on the Dirac equation and the Born approximation for the interaction of the particle with the field of a nucleus. |
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