| 单词 | proportional counter |
| 释义 | proportional counter A type of detector for ionizing radiation in which the size of the output pulse is proportional to the number of ions formed in the initial ionizing event. It operates in a voltage region, called the proportional region , intermediate between that of an ionization chamber and a Geiger counter, avalanche ionization being limited to the immediate vicinity of the primary ionization rather than the entire length of the central wire electrode |
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