| 释义 |
black carbon counter black carbon counter[′blak ¦kär·bən ‚kau̇nt·ər] (nucleonics) The original type of radiation counter used in radiocarbon dating, in which the sample, whose carbon has first been converted to carbon black, is mounted on the inside of a steel cylinder which is inserted into a sensitive Geiger counter. Also known as Libby counter. |