What happens to the 99% of electrons' energy not converted into x-rays?

The correct answer, which states that 99% of the electrons' energy not converted into x-rays is conducted away by the copper block and oil, highlights how dental x-ray machines are designed to efficiently manage the energy produced during the x-ray generation process.

During the production of x-rays, a significant amount of energy is indeed released but is not transformed into useful x-rays. Instead, this excess energy primarily manifests as heat. The components of the x-ray tube, such as the copper block, are engineered to conduct this heat away from the target area to prevent damage and ensure safe operation. Additionally, oil surrounding the x-ray tube acts as a coolant to absorb and dissipate this heat effectively, maintaining optimal temperatures for the machine's longevity and efficiency.

Understanding this principle is crucial for dental nurses, as it underlines the importance of the design of dental radiography equipment in managing the byproducts of x-ray generation, thereby ensuring both safety and functionality during dental imaging procedures.