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общая лексика
F-половой фактор
общая лексика
F-половой фактор
[ef]
сокращение
[failed] отказавший (в работе)
неисправный
[failure] отказ (в работе)
неисправность
Смотрите также
существительное
общая лексика
6-я буква английского алфавита
6-й номер серии
(F) отметка «удовлетворительно»
в грам. знач. прил. шестой (по счёту)
музыка
фа (F)
американизм
отметка «плохо» (F)
The F-factor, in diagnostic radiology, is the conversion factor between exposure and absorbed dose. In other words, it converts between the amount of ionization in air (roentgens or, in SI units, coulombs per kilogram of absorber material) and the absorbed dose in air (rads or grays). The two determinants of the F-factor are the effective atomic number (Z) of the material and the type of ionizing radiation being considered. Since the effective Z of air and soft tissue is approximately the same, the F-factor is approximately 1 for many x-ray imaging applications. However, bone has an F-factor of up to 4, due to its higher effective Z.