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A quality radiograph is obtained using a 4 inch pid and an exposure time of 3 impulses. The pid was removed and replaced with a 16 inch pid. What should the new exposure time be to maintain image density?
5What type of image will it produce when using the bisecting angle technique, directing the x-ray beam perpendicular to the long axis of the teeth?
5A diagnostic film is produced using 10 ma and .5 second. What exposure time is needed to produce the same film at 20 ma?
5
Explain what do you mean by latent effect in radiology?
Explain radiology?
When onization occurs?
Explain what is densitometer is used for?
What is the maintenance process in x-ray unit?
What is the unit of time used to measure x-rays exposure?
Is it dangerous if a person is exposed to x-rays frequently?
What are the cells that are most sensitive to x-radiation?
Explain what is emulsion?
What does an x-ray tube consist of?
List out the differences between x-rays and mri?
Mention what is the unit to measure x-rays exposure?
Explain the principle of x-ray in radiology?
In u.s.a, who regulates the devices used for radiation and monitor its usage?
Why a grid is sometimes placed in a cassette?
