Final answer:
A larger focal spot size decreases recorded details by increasing the amount of blur, thus affecting the sharpness and clarity of an image. The correct option is 2) decrease
Step-by-step explanation:
A larger focal spot size will decrease recorded details since greater blur is produced. In the realm of imaging and microscopy, the focal spot size is paramount in determining the clarity and detail of an image.
When the size of the focal spot increases, the edges of the image tend to become less sharp as more blur is introduced. This blurring effect diminishes the detail that can be discerned in the recorded image.
On the contrary, a smaller focal spot size leads to improved clarity and greater recorded detail by reducing blur. Thus, in high-resolution applications where detail is crucial, a small focal spot is ideal.
It's important to understand that the focal spot size directly affects the quality of an X-ray image in medical imaging, as well as the functionality of optical systems like telescopes and microscopes.
Properly adjusting the focal spot size is necessary to ensure the highest quality of recorded details, depending on the specific requirements of the application. The correct option is 2) decrease