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Thoriated tungsten filament (rt)
| Глоссарий терминов по технологиям неразрушающего контроля (NDT) |
A vacuum-tube filament consisting of tungsten mixed with thorium oxide to give improved electron emission. also known as thoriated emitter.
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Barn (rt), английский
A very small unit of area used in measuring the cross-sections of atoms, nuclei, electrons, and other particles. one barn is equal to 10-24 square centimeters. the term is a measure of the probability that a given nuclear reaction will occur.
Cathode ray tube (ut), английский
A vacuum tube, containing a screen, upon which signals are displayed; basic display device for an a-scan. abbreviation is crt.
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