|
|
|
|
|
|
|
|
|
Radioactivity leak test
| Глоссарий по тестированию |
Leak test using radioactive tracer gas such as krypton-85, detected by its emission of radioactive decay products.
|
|
Radioactive, английский
- Radioactive can generally describe the property of a substance (or more accurately atomic nuclei) which are unstable and spontaneously decay (disintegrate) with the release of energy, the energy being either electromagnetic radiation , particulate or both
- Радиоактивный
- Generally, the property possessed by certain elements, such as uranium minerals, of spontaneously emitting alpha, teta, and/or gamma rays by the disintegration of the nuclei of their atoms.
- Atoms that are energetically unstable and decay to a stable condition by emitting radiation are said to be radioactive.
|
Rankine, английский
Disused scale for absolute temperature and related to the fahrenheit relative scale. the rankine unit (°r) is equal to 1 °f; 0 °r = –459.72 °f. rat’s tooth principle: (1) the tendency for hard material on a tooth’s front surface to wear more slowly than soft material on the back surface, keeping the edge sharp. (2) mechanism of wear whereby adjacent hard and soft surfaces wear at different rates, producing a self-sharpening edge.
Radiant exitance, английский
Radiant power per area, emitted or reflected from a certain location on a surface. measured in watts per square meter (w/m2). compare luminous exitance.
|
|
|
|
|
|
|
