CR Review #1 | Baamboozle - Baamboozle | The Most Fun Classroom Games!

English 16 Public

Study Slideshow

This means the general emission of light:

Luminescence

Contained within the IP Active layer, are the ____ _____ crystals.

Barium Fluorohalide

(T or F) The CR latent image is considered to be 'trapped' electrons.

True

What causes the electrons to be released from the F centers, within the phosphors of the CR IP ?

laser

The latent image will lose about ____% of its energy over about 8 hours time.

25%

(T or F) CR systems are considered to be "Stimulated Phosphorescence"

True

The movement of the laser across the imaging plate (vs the plate moving), is called:

Fast Scan

(T or F) To correct the elliptical shape of the laser, the beam is “shaped” by special optics that keep the beam size, shape, and speed largely independent of the beam position.

True

The reader scans the plate with red light in a zigzag, or _______ pattern.

raster

The letters, PM as part of a PM tube stands for:

Photomultiplier

This device converts analog data into digital data.

ADC (Analog to Digital Converter)

To digitize the analog signal from the PMT, it must first be _______.

Sampled

Increasing the sampling frequency results in a smaller sampling and pixel pitch, which (increases or decreases?) the spatial resolution of the digital image.

increases

The distance between the midpoint of one pixel to the midpoint of an adjacent pixel describes the _____ _______.

pixel pitch

An IP is 'erased' via exposure to what color light ?

intense white light

IP’s are very sensitive to scatter and should be erased how often? to prevent the buildup of any background signal (or if unsure of last use)

At least every 48 hours