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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 to create the X-ray image of the broken bone. This is because the flat panel detector is more sensitive than traditional photographic film, which allows for higher quality images with lower doses of radiation. Additionally, flat panel detectors produce digital images that are easier to share and transfer, minimizing the time required to develop images compared to film.
Step 2
Go on to discuss why the other two methods are less suitable.
Answer
Photographic film is less suitable because it requires a longer development time, which could delay patient diagnosis. Moreover, it is less sensitive than flat panel detectors, potentially requiring higher doses of X-rays to produce a usable image. The intensifying screen using fluoroscopic image intensification is also not ideal as it tends to introduce noise into the image, which may compromise the clarity needed for accurate diagnosis. Additionally, it may not allow for real-time imaging as effectively as flat panel detectors.