Chapter 14 Fluroscopy Physics II Flashcards

The overall ability of the image intensifier to make the image brighter is the

The __________ is bonded directly to the input phospher.

The conversion factor is a(n) ________ term for brightness gain and is typically approximately ______ of the brightness gain value.

When the camera tube's electron stream travels across the target, if there is light present

Typical fluroscopic systems have spatial resolution capabilities in the range of

If a 30/23/15 cm image intensifier is operated in the 23-cm mode, the fluroscopic image will be magnified by a factor of

This part of the image intensifier is made of cesium iodide

A face plate, signal plate, and target are all components of the

Which of the following accurately shows the energy sequence during fluroscopy?

The potential difference across the image intensifier is approximately

Distortion of the fluroscopic image that appears as unequal magnification is

The diameter of the output phosphor is approximately

A disadvantage of using magnification mode during fluoroscopy is

________ imaging is accomplished with fluoroscopy as opposed to radiography

The conventional method for viewing the fluroscopic image is by

The electrostic focusing lenses have a _______ charge

A loss of brightness around the edge of the fluroscopic image caused by the curve of the photocathode is

In reference to image intensification, the function that adjusts and maintains the overall image density and contrast during the fluroscopic procedure is

Increasing the mA is the way to correct a fluroscopic image that has

The formula for minification gain is

The input phosphor is ________ than the output phosphor

Magnification of the fluorosopic image results in improved

The commercial fluroscope was developed by

The ________ absorbs x-rays and emits light

________ is measured in cd/m2/mR/s

This part of the image intensifier is made of zinc cadmium sulfide

If the input phosphor measures 30 cm and the output phosphor measures 2.5 cm, what is the minification gain?

Before the image intensifier, the fluoroscopist may have worn ______ goggles to make it easier to see the dim fluroscopic image

The formula for brightness gain is

This part of the image intensifier absorbs light and produces electrons

The image intensifier improved fluroscopy by

In fluoroscopy, shape distortion is caused by

Each capacitor in a CCD represents a(n)

The gain related to the decrease in size from the input to the output phosphor is the

The original fluoroscopic image was very

The _______ is located very close to the output phosphor.

When operated in magnification mode, the electrostatic lenses have ______ of a negative charge.

The ratio of the number of light photons at the output phosphor as compared with the input phosphor is the

The image intensifier was introduced in the

This part of the image intensifier is made of cesium and antimony compounds

The formula to determine the amount of magnification created when in magnification mode, the formula is

The image intensifier is located

When the electron beam in the camera travels back and forth across, from top to bottom, it is moving in a ______ pattern.

The CCDs electric charge from the capacitors is sent to the

Photoemission occurs at the

The ________ is (are) found along the entire length of the image intensifier

Vidicon refers to a type of

Semiconductor capacitors are components of the

The _______ absorbs electrons and emits light

The diameter of the input phosphor typically measures between