Physics 2 week 2 test 2

Digital radiography was first introduced by ____________.

• GE in 1998

• Fuji in 1981

• Kodak in 1975

• DuPont in 1965

Computed radiography screens respond to radiation with___

• fluorescence

• electron emission

• photostimulable luminescence

• biological phosphorescence

A photostimulable phosphor in a metastable state will emit light ____________.

• immediately

• when stimulated by light

• immediately and when stimulated by light

• immediately, when stimulated by light, and over time

Europium is the ____________ of the photostimulable phosphor.

• image buffer

• scintillator

• phosphor

• activator

The computed radiography cassette is called a(n) ____ receptor.

• optical

• imaging

• laser

• thermoluminescent

6. The photostimulable phosphor screen is handled in a _______.

• cassette

• envelope

• tray

• box

The computed radiography reader is made up of ____________, _______, and ______ modules.

• mechanical; chemical; optical

• chemical; optical; computer

• mechanical; optical; computer

• mechanical; chemical; computer

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

• metastable state, stimulate, read, and erase

• erase, stimulate, metastable state, and read

• read, erase, stimulate, and metastable state

• metastable state, read, erase, and stimulate

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

• completely stabilized

• mostly stabilized

• still excited

• completely removed

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

• computer

• chemical