What is the minification gain for an image intensification tube with an input screen diameter of 12 cm and an output diameter of 2.5 cm?

The ESE is measured from the patient surface closest to the tabletop in which type of fluoroscopic unit?

The ESE is measured from the patient surface closest to the tabletop in which type of fluoroscopic unit?

Which of the following are true in regards to the cones of the eye? They are concentrated near the center of the retina They are sensitive to a wide range of wavelengths of light They are responsible for photopic vision They provide excellent spatial resolution

Which of the following is defined as the ratio of the luminance of the output phosphor to the input x-ray exposure rate?

Which of the following are true in regards to the cones of the eye? They are concentrated near the center of the retina They are sensitive to a wide range of wavelengths of light They are responsible for photopic vision They provide excellent spatial resolution

List, in order, the conversions that occur in an image intensification tube once fluoroscopic x-rays have exited the patient: Light is converted into photoelectrons X-rays are converted into light Photoelectrons are converted into light Light is converted into x-rays

List, in order, the conversions that occur in an image intensification tube once fluoroscopic x-rays have exited the patient: Light is converted into photoelectrons X-rays are converted into light Photoelectrons are converted into light Light is converted into x-rays

A HLCF unit has a maximum tabletop intensity of:

Which of the following are used for direct capture for DFPDs? Amorphous selenium Amorphous silicon Thin film transistors