Contemporary CT scanners use solid state detectors.These detectors utilize
A)sodium iodide crystals.
B)rare earth ceramic scintillators.
C)xenon gas.
D)freon gas.

Question

Quizplus · Accepted Answer

Solid state detectors in modern CT scanners typically use rare earth ceramic scintillators. These scintillators convert X-ray energy into visible light, which is then detected by a photodiode. Rare earth ceramics have high stopping power, high density, and high light yield, making them ideal for use in CT detectors. Sodium iodide crystals were used in older CT scanners, but they have low stopping power and are not as efficient as rare earth ceramic scintillators. Xenon gas and freon gas are not commonly used in modern CT detectors.

Contemporary CT Scanners Use Solid State Detectors