X-ray Machine - Vocabulary Flashcards

A set of vocabulary flashcards covering X-ray machine components, controls, and exposure settings as described in the notes.

X-ray machine

The device that generates dental X-rays for radiographic imaging.

Tubehead

The assembly that houses the X-ray tube and focal spot; attaches to the support arm and yoke.

Focal spot

The small area on the X-ray tube's anode where electrons collide to produce X-rays.

PID (Position Indicating Device)

A device on the tubehead that shows the beam's direction to help align the radiation field.

BID (Beam Indicating Device)

A device that indicates where the X-ray beam will be directed.

Cone

A conical piece that shapes the X-ray beam and is used with beam/positioning devices.

Vertical Angulation Indicator Scale

Scale used to set the beam's vertical angle relative to the tooth.

0° to +90°

Range of vertical angulation settings available on the unit.

Vertical Angulation Adjustment

Up/down movement of the tubehead to change the vertical angle.

Horizontal adjustment / Pivot

Left-to-right movement of the tubehead to adjust horizontal alignment.

Support arm

The arm that supports the tubehead and allows positioning.

Control panel (Analog type)

Non-digital interface used to set exposure factors (kVp, mA, time).

Exposure time

Duration of the X-ray exposure, which can be pre-set or adjustable.

mA (milliamperes)

The tube current that controls the number of X-ray photons produced.

Pre-selected exposure time

Preset exposure times for different tooth types, adults vs. kids, or film type.