Chapter 2: Parts of a dental X-ray machine

Question 1

three component parts of an x-ray machine

Answer 1

control panel
extension arm
tubehead

Question 2

Purpose of control panel

Answer 2

On and off switch, indicator light, exposure button.

Question 3

Purpose of the Extension arm

Answer 3

Allows for movement and positioning of the tubehead

suspends the xray tubehead ;
contains the electrical wires that extends from the control pannel to the tubehead.

Question 4

Purpose of the tubehead

Answer 4

heavy metal housing that contains xray tube that produces dental x-rays

Question 5

component parts of the tubehead

PLATIM-X

Answer 5

Metal housing
Insulating oil 
Tubehead seal 
X-ray tube
transformer
aluminum discs
lead collimator
PID

Question 6

Lightly sealed heavy metal housing that contains xray tube that produces dental xrays

Answer 6

tubehead

Question 7

metal body of the tubhead that surrounds the xray tube and transformers. filled with oil, protects xray tube and grounds high voltage components

Answer 7

metal housing

Question 8

Oil that surrounds the xray tube and transformers inside the tubehead

Answer 8

insulating oil

Question 9

Aluminum or leaded glass covering of the tubehead that permits the exit of xrays from the tubehead

Answer 9

tubehead seal

Question 10

the heart of the xray generating system

glass vaccum tube from whichall air has been removed

Answer 10

x-ray tube

Question 11

device that alters the voltage of incoming electricity

Answer 11

transformer

Question 12

sheets of 0.5mm thick aluminum placed in the path of the xray beam

Answer 12

aluminum disks

Question 13

lead plate with a central hole that fits directly over the opening of the metal housing

Answer 13

lead collimator

Question 14

An open ended lead lined cylinder that extends from the opening of the metal housing of the tubehead, aims and shapes xray beam

Answer 14

PID (position indicating device)

Question 15

leaded glass housing

Answer 15

leaded glass vacuum tube that prevents xrays from escaping in all direction

Question 16

negative electrode that consists of tungsten wire filament in a cup shaped holder made of molybdenum

Answer 16

cathode

Question 17

coiled wire made of tungsten which produces electrons when heated

Answer 17

tungsten filament

Question 18

focuses the electrons into a narrow beam and directs the beam accross the tube toward the tungsten target of the anode

Answer 18

molybdenum cup

Question 19

positive electrode, consists of a wafer thin tungsten plate embedded in a sold copper rode

Answer 19

anode