Week 2

Question 1

ALARA Cncept

Answer 1

Keep radiation “As Low As Reasonably Achievable”.

Question 2

Anode

Answer 2

Positive electrode in x-Ray tube.

Question 3

Atom

Answer 3

Basic unit of matter.

Question 4

Cathode

Answer 4

Negative electrode in x-Ray tube.

Question 5

Central Ray

Answer 5

X-rays at the center of the beam.

Question 6

Contrast

Answer 6

Degrees of blackness on an image.

Question 7

Density

Answer 7

Overall darkness or blackness of an image.

Question 8

Dental Radiaiography

Answer 8

Recording images of the oral cavity using x-rays.

Question 9

Dose of Radiation

Answer 9

Amount of energy absorbed by tissues.

Question 10

Electron

Answer 10

Negatively charged particle in an atom.

Question 11

Energy

Answer 11

Ability to do work

Question 12

Genetic Effects

Answer 12

Effects of radiation passed down through genetic cells.

Question 13

Ionization

Answer 13

Electrons removed from atoms.

Question 14

Kilovoltage peak (kvP)

Answer 14

Highest voltage used during x-Ray.

Question 15

Latent period

Answer 15

Time between exposure to x-Ray and sign of symptoms

Question 16

Magnification

Answer 16

Enlargement of an image.

Question 17

Matter

Answer 17

Anything that occupies space.

Question 18

Milliampere

Answer 18

Used to describe intensity of electrical current.

Question 19

Photon

Answer 19

Bundle of pure energy with no mass or weight.

Question 20

Primary beam

Answer 20

Most penetrating beam at target of anode.