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
What are the cells that are most sensitive to x-radiation?
Explain what is densitometer is used for?
What are the radiations and technology that radiologist uses?
What is an early clinical sign of excessive acute exposure to radiation?
What are some new areas in radiology?
Is it dangerous if a person is exposed to x-rays frequently?
Explain what do you mean by latent effect in radiology?
List out the differences between x-rays and mri?
In u.s.a, who regulates the devices used for radiation and monitor its usage?
What is the unit of measuring radiation dosage?
What does an x-ray tube consist of?
Mention what is the unit to measure x-rays exposure?
Explain how x-ray tube works?
Why a grid is sometimes placed in a cassette?
Explain what is emulsion?
