rad physics test 7

the distance from the center of one pixel to the center of an adjacent pixel is known as the

• pixel size

• pixel pitch

• del size

• del pitch

volume of patient tissue that is represented by a single point in the digital image is called a:

• pixel

• dexel

• voxel

• del

in digital imaging, the limiting factor in spatial resolution is the:

• pixel depth

• pixel size

• bit depth

• pixel pitch

spatial frequency is used to describe the quality of spatial resolution in terms of ______.

• pixel size

• modular transfer function

• line pairs per millimeter

• contrast resolution

the ability to distinguish between structures that attenuate the x-ray beam similarly is:

• brightness

• contrast resolution

• spatial resolution

• noise

when matrix size is increased and pixel size goes down:

• spatial resolution decreases

• spatial resolution increases

• contrast increases

• A and C

image detail is also called

• spatial resolution

• spatial frequency

• signal to noise ratio

• dynamic range

in effect, what an analog-to-digital converter (ADC) does is to:

• mathematically round out measures

• convert the electronic signal into display brightness

• act as a language complier

• convert the x-ray signal into an electronic signal

analog-to-digital conversion involves two steps. They are quantification and ______.

• rescaling

• sampling

• pixelization

• toning

Tags

NGSS.HS-PS4-5

a digital-to-analog converter (DAC) is used between which two stages of the imaging chain:

• setting technique and exposure

• exposure (acquisition) and processing

• processing and storage

• storage and display

Tags

NGSS.HS-PS3-3