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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 • photographic film • a flat panel (FTP) detector or • an intensifying screen using fluoros... 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 detector should be used for X-ray imaging of the broken bone. This method is superior because it is more sensitive than photographic film, allowing for better image quality and detail. Additionally, a flat panel detector eliminates the need for the time-consuming development process associated with photographic film. This is particularly advantageous in medical settings where prompt diagnoses are critical.
Step 2
Go on to discuss why the other two methods are less suitable.
Answer
Photographic film is less suitable because it requires a developing process that can delay the availability of the image. Furthermore, it is not as sensitive as the flat panel detector, which may lead to poorer image quality, especially in cases where fine details are essential for diagnosis. The intensifying screen, while faster than film, still does not match the sensitivity or speed of flat panel detectors. It can also complicate the imaging process due to additional components needed to convert X-ray photons into light.