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An X-ray image is to be made of a broken bone - AQA - A-Level Physics - Question 2 - 2022 - Paper 5
Question 2
An X-ray image is to be made of a broken bone. The image can be formed on • a photographic film • a flat panel (FTP) detector or • an intensifying screen using fluor... show full transcript
Worked Solution & Example Answer:An X-ray image is to be made of a broken bone - AQA - A-Level Physics - Question 2 - 2022 - Paper 5
Step 1
State and explain which one of these detection methods should be used in this situation.
Answer
The flat panel (FTP) detector should be used for capturing the X-ray image. This method is preferable because it provides a higher sensitivity compared to photographic film, resulting in better image quality with lower radiation exposure. Additionally, flat panel detectors facilitate easier sharing and transfer of images without the need for chemical development processes.
Step 2
Go on to discuss why the other two methods are less suitable.
Answer
Photographic film is less suitable primarily because it requires longer processing times and does not offer the same level of sensitivity as a flat panel detector. Furthermore, it may result in a lower image quality, making it hard to identify finer details in the X-ray. On the other hand, an intensifying screen using fluoroscopic image intensification is also not ideal as it may introduce additional artifacts and reduce the contrast of the resulting images, complicating diagnosis.