| A | B |
|---|
| The amount of fine detail that can be seen in the image | Resolution |
| The difference in intensity between different areas of the image | Contrast |
| Improves contrast by producing visible light | Intensifying screen |
| Improves resolution by absorbing some X-rays | Anti-scatter grid |
| Removes low energy X-rays | Filter |
| Improves contrast but not good for patient | Longer exposure |
| Improves resolution by reducing patient movement | Shorter exposure |
| Improves resolution | Better quality film |
| Mechanism by which X-rays should be absorbed | Photoelectric effect |
| Type of material which is a good absorber of X-rays | Metals |
| Most X-rays pass straight through this | Photographic film |
| To improve the contrast the film is | double sided |
| Most of the exposure of the photographic film is caused by | Visible light |
| There would be no differential in absorption with these | High energy X-rays |
| The X-rays must be as close to a point as possible to | Improve resolution |
| Improving contrast would | Worsen resolution |
