Exam 15: Computed Radiography

With computed radiography the contrast is _______________________________.

Computed radiography screens respond to radiation with ______________________.

The computed radiography cassette is called a(n) ______________ plate.

The laser beam must be less than 100 µm in diameter in order to maintain ________.

The principal source of noise in computed radiography is ____________________.

The laser is one of the ____________ features of the computed radiography reader.

Digital radiography was first introduced by ______________.

Following the laser stimulation of the photostimulable phosphor, the excited electrons are _________________.

The digital imaging plate can sit for some time after the erase cycle.

The output signal from the photostimulable phosphor plate is converted from analog to digital by the ________________.

Computed radiography imaging produces _____________ gray levels.

The computed radiography image has _____________________.

Europium is the ______________ of the photostimulable phosphor.

Optical filters are used to filter out the _______ light and allow the _______ light to reach the photodetector.

The photostimulable phosphor screen is handled in a ______________.

A photostimulable phosphor in a metastable state will emit light ________________. I. immediately II) when stimulated by light III) over time

The four steps of creating an image with computed radiography are ______________.

The computed radiography reader is made up of ______, _____, and _____ modules. I. mechanical II) chemical III) optical IV) computer

_____________ is prevented by flooding the erased imaging plate with bright light.