Tag: linear

Explaining Linear Energy Transfer

High vs. Low LET


Radiologic Technologists often hear these terms when radiation is described. The concept of Linear energy transfer (LET), can be difficult to understand unless it is carefully explained. The definition is that LET is a measure of the conservative force acting on a charged ionizing particle travelling through matter. So we aren’t actually talking only about the radiation, we are actually talking about the stuff hit by the radiation too. Linear, meaning the radiation travels in a line. And energy transfer, meaning how much of the radiation’s energy is transferred into the material it’s going through. This concept is relevant to X-ray as compared to other radiation types.

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