The amount of X-rays which undergo Compton scattering are:
**Core Concept**
Compton scattering is a phenomenon where a high-energy photon collides with a free electron, resulting in a transfer of energy and momentum. This process is an important mechanism for the interaction of X-rays with matter in the human body, particularly in medical imaging.
**Why the Correct Answer is Right**
The correct answer is related to the probability of Compton scattering occurring. In Compton scattering, the photon transfers some of its energy and momentum to the electron, resulting in a change in the direction of the photon. This process is more likely to occur when the photon has a relatively low energy, as it has a higher probability of interacting with the electron. The amount of X-rays that undergo Compton scattering is therefore higher for lower energy X-rays.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not provided, so we cannot comment on it.
* **Option B:** This option is not provided, so we cannot comment on it.
* **Option C:** This option is not provided, so we cannot comment on it.
**Clinical Pearl / High-Yield Fact**
In medical imaging, Compton scattering is an important consideration when choosing the energy of the X-ray beam. Lower energy X-rays are more likely to undergo Compton scattering, resulting in a greater absorption of X-rays by the patient, which can lead to increased radiation exposure.
**Correct Answer: D.**