| 单词 | thermal column |
| 释义 | > as lemmasthermal column thermal column n. a body of moderator inside or projecting from a reactor such that it serves as a source of thermal neutrons for experimental purposes. ΘΚΠ the world > matter > physics > atomic nucleus > nuclear fission > nuclear fuel > [noun] > source of thermal neutrons thermal column1950 1950 Canad. Jrnl. Res. A. 28 434 The thermal column of the Chalk River pile was used as a large block of scattering material with a high flux of thermal neutrons. 1963 B. Fozard Instrumentation Nucl. Reactors xiii. 166 A count rate from the fission chamber of 105 c/s..is produced by a neutron flux, in the thermal column, of about 5 × 106 neutrons cm—2 sec—1. < as lemmas |
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