| 单词 | betatron |
| 释义 | betatron A particle accelerator for producing high-energy electrons (up to 340 MeV) for research purposes, including the production of high-energy X-rays. The electrons are accelerated by electromagnetic induction in a doughnut-shaped (toroidal) ring from which the air has been removed. This type of accelerator was first developed by D. W. Kerst (1911– ) in 1939; the largest such machine, at the University of Illinois, was completed in 1950 |
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