单词 |
half thickness |
释义 |
half thickness
half thicknessThickness of absorbing material necessary to reduce by one-half the intensity of radiation which passes through it.half thickness
half thickness[′haf ¦thik·nəs] (physics) The thickness of a sheet of material which reduces the intensity of a beam of radiation passing through it to one-half its initial value. Also known as half-value layer; half-value thickness. |
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