Radiologic Technologist Practice Exam

How many materials are used in the rotating anode target that helps cool and conduct electrons through the x-ray circuitry?

1. 1

2. 2

3. 3

4. 4

The correct answer is: 4

In the construction of a rotating anode target used in x-ray tubes, multiple materials are employed to manage both heat dissipation and electrical conductivity. A common arrangement includes materials such as tungsten for its high atomic number and melting point, which helps in generating x-rays efficiently. Additionally, materials like molybdenum or rhenium might be used to improve the durability and thermal conductivity. Using four different materials allows for an optimized combination of thermal resistance, conductivity, and mechanical strength. This multi-material approach fosters better cooling and ensures efficient electron conduction through the x-ray circuitry, making operations more effective and sustainable during high-demand use. Thus, the correct answer reflects the complexity and engineering behind the rotating anode designs, emphasizing the necessity of multiple materials to achieve optimal performance in medical imaging technologies.