CAMRT Radiography Practice Exam

Which end is recognized for having more penetration power in radiography?

1. Anode

2. Cathode

3. Neutral

4. None of the above

The correct answer is: Cathode

In radiography, the penetration power of x-rays is predominantly attributed to the anode, specifically the type of radiation generated at that end of the x-ray tube. The anode is where the high-energy electrons emitted from the cathode interact with the target material, usually tungsten, to produce x-rays. These x-rays are produced as a result of interactions such as Bremsstrahlung and characteristic radiation, and their energy levels can vary widely. The cathode, on the other hand, is responsible for generating electrons, but the x-rays produced at the cathode do not have the same penetrating power. The anode allows for a more focused and energetic x-ray beam to be directed towards the object being imaged, whereas the cathode itself does not contribute to penetration but rather creates the electrons that are needed for x-ray production. Neutral is not a relevant factor in this context, as it refers to a lack of charge and does not relate to the functioning of x-ray generation. Similarly, the option indicating none of the above does not apply, as the anode is indeed recognized for more effective penetration power in radiography. Understanding the roles of the anode and cathode is vital in appreciating how radiation is generated and how its characteristics affect