|
|
|
|
|
|
|
|
|
Beam quality (rt)
| Глоссарий терминов по технологиям неразрушающего контроля (NDT) |
An expression used to describe the penetrating power (energy spectrum) of a beam of radiation. the quality of an x-ray beam is usually expressed in terms of the half-value layer of some reference material, such as aluminum or copper.
|
|
Expression, французский
|
Banking concept (rt), английский
An idea or model used to facilitate the explanation of radiation exposure permitted in a lifetime.
Radiographic quality level (rt), английский
An expression of the quality (sensitivity) of a radiograph in terms of an image quality indicator (penetrameter). when a standard hole-type penetrameter is used, quality level is stated as a-bt, where a is the penetrameter thickness, expressed as a percentage of the maximum thickness of the specimen, and b is the diameter of the smallest discernible hole, expressed as a multiple of penetrameter thickness, t. for example, the 3- 2t quality level means that the penetrameter thickness equals 3 percent of maximum specimen thickness, and the smallest discernible penetrameter hole has a diameter equal to twice the penetrameter thickness.
|
|
|
|
|
|
|
