| 单词 | neutron counter |
| 释义 | > as lemmasneutron counter neutron counter n. an instrument for detecting and counting neutrons. ΚΠ 1941 Proc. Royal Soc. A. 178 484 The emission of ‘delayed’ neutrons has been sought with the help of a neutron counter consisting of a 2mm. deep pulse-recording ionization chamber with a surface bearing a film of paraffin wax. 1961 G. R. Choppin Exper. Nucl. Chem. viii. 117 Most neutron counters use detectors which contain BF3 gas usually enriched in B10. 1998 Wired Nov. 223/1 The neutron counter was very sensitive. Any time anyone in Prague turned on a big machine, the counter counted it. < as lemmas |
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