making x-rays

Question 1

intra-oral x-ray machines include

Answer 1

control panel, extension arms, tube head

Question 2

control panel includes

Answer 2

master switch, indicator light, selector button, exposure button

Question 3

extension arm

Answer 3

suspend x-ray tube head, allows for movement and positioning of the tube head

Question 4

metal housing

Answer 4

the metal body of the tube head

Question 5

insulating oil

Answer 5

fills the housing and surrounds the x-ray tube, prevents overheating

Question 6

transformers

Answer 6

alters the voltage of the incoming electric current

Question 7

aluminum fillers/disks

Answer 7

filters out non-penetrating, longer wavelength Xrays

Question 8

lead collimator

Answer 8

limits the size of the Xray beam

Question 9

position-indicating device (PID)

Answer 9

a lead-lined cylinder that aims and shapes the x-ray beam

Question 10

heart of the x-ray generating system. is made of leaded-glass housing known as

Answer 10

x-ray tube

Question 11

what Xray tube does

Answer 11

prevents Xray from escaping in all directions

Air has been removed from the tube to create a vacuum

Question 12

Vacuum environment

Answer 12

allows electrons to flow with minimum resistance between the electrodes

Question 13

negative supplies the electrons necessary to generate Xrays.
Consists of a tungsten filament in a focusing cup made up of molybdenum

Answer 13

cathode

Question 14

positive acts as a target for electrons

Composed of tungsten target embedded In a large copper stem

Answer 14

anode

Question 15

produces electrons when heated, hotter than filament the more electrons produced

Answer 15

tungsten filament

Question 16

focuses the electrons into a narrow beam and directs the beam across the tube toward the tungsten target

Answer 16

molybdenum (focusing cup)

Question 17

copper

Answer 17

conducts the heat away from the target

Question 18

serves as a focal point and covers the bombarding electrons into x-ray photons

Answer 18

tungsten target

Question 19

PID (position indicating device)

Answer 19

aka cone
used to aim x-ray beam at the film
usually 8,12,16 inches in length

Question 20

older system

Answer 20

the traditional or standard system

Question 21

newer system

Answer 21

metric equivalent is known as SI system

Question 22

exposure

Answer 22

measurement of ionization in air produced by Xrays

Question 23

dose

Answer 23

the amount of energy absorbed by a tissue

Question 24

dose equivalent

Answer 24

compares biological effects of different types of radiation

Question 25

density

Answer 25

overall darkness or blackness of an image

Question 26

contrast

Answer 26

how sharply dark and light areas are differentiated or separated on an image.

Question 27

transformer

Answer 27

a device that is used to either increase or decrease the voltage in an electrical circuit

Question 28

step down transformer

Answer 28

used to decrease the voltage from the incoming 110- or 220-line voltage to the 3 to 5 V used by the filament circuit

Question 29

step-up transformer

Answer 29

used to increase the voltage from the incoming 110-2201 line.

Question 30

means braking radiation

Answer 30

bremsstrahlung radiation