The use of an x-ray tube with a large anode angle results in which two outcomes?

The choice indicating that a large anode angle results in an increased focal spot size and increased heat capacity is correct due to the relationship between anode design and thermal management in x-ray tubes.

A larger anode angle distributes the incident x-ray beam over a larger surface area. This larger area allows for a more extensive focal spot, which is beneficial for producing larger images with minimal distortion; however, it can also lead to a trade-off where the effective focal spot size might appear increased compared to a smaller angle configuration.

Additionally, a larger anode has a higher heat capacity because it can absorb and dissipate heat more effectively. This is crucial for ensuring that the x-ray tube can operate at higher exposure levels without risking damage from heat generated during operation. The increased surface area allows more space for heat to be spread out, resulting in a cooler overall operating temperature.

Understanding these principles helps clarify how anode design influences the performance and capabilities of x-ray tubes in radiographic imaging.