Digital Ch 6

For the CMOS, each pixel has its own _______.

• Amplifier

• capacitor

• photodiode

• del

A system that used scintillators that convert x-rays to light, light to electric charge. and store the charge in capacitors is known as a: 

• CCD

• CMOS

• ADC

• Image intensifier

Which layer of the CCD chip contains the electronic gates?

• polysilicon

• silicon dioxide

• silicon substrate

• del

A CCD reduces the size of the projected light image.

• True

• False

A CCD converts light to x-ray photons.

• True

• False

Which of the following is the most similar to a camera in the indirect conversion detectors?

• CMOS

• TFT

• CCD

• field-effect transistor

Which of the following is a highly efficient indirect conversion system that takes up less fill space?

• CCD

• CMOS

Identify the impurities from the list below

• gallium arsenide

• indium antimonide

• tellurium

• oxide of most metals

QE is a measurement of the:

• amount of electron-hole pairs held by the electrostatic force

• percentage of light that is absorbed

• amount of electrons produced relative to the incident light from the scintillator

• total amount of light that is absorbed

The components that focus the signal from the scintillators to the CCD are called:

• detector elements

• capacitors

• fiber optics

• analog-digital converters