Safety

Question 1

Radiation that possesses the ability to remove electrons from atoms by a process called?

Answer 1

Ionization

Question 2

Effects of radiation on the body being irradiated

Answer 2

Somatic effect

Question 3

Effects of radiation on the genetic code of a cell; affects the next generation

Answer 3

Genetic effects

Question 4

Radiation contained in the unpolluted environment

Answer 4

Natural back ground radiation

Question 5

Man made radiation

Answer 5

Artificially produced radiation

Question 6

Radiation exiting the tube

Answer 6

Primary radiation

Question 7

X-rays emerge from the patient and strike the ir

Answer 7

Exit radiation

Question 8

Absorption and scatter of the X-ray beam as it passes through the patient

Answer 8

Attenuation

Question 9

X-ray beam that contains photons of many different energies

Answer 9

Heterogenous beam

Question 10

Absorption of X-ray photons in the atoms of the body

Answer 10

Photoelectric effect

Question 11

Scatter of X-ray photons from the atoms of the body

Answer 11

Compton effect

Question 12

Unit of exposure

Answer 12

Air kerma

Question 13

Unit of absorbed dose; measured in joules

Answer 13

Gray

Question 14

Radiation absorbed by air

Answer 14

Gya

Question 15

Absorbed by tissue

Answer 15

Gyt

Question 16

Unit of effective and equivalent dose

Answer 16

Sievert

Question 17

Unit of activity

Answer 17

Becquerel

Question 18

Makes recommendations on equipment design and protection regarding lead shielding and exposure rates

Answer 18

NCRP report #102

Question 19

Defines annual exposure limits, makes recommendations pertaining to risk benefit analysis of radiation exposure

Answer 19

NCRP #116

Question 20

Upper boundary dose that can be absorbed, either in a single exposure or annually, with a negligible risk of somatic and genetic damage to the individual

Answer 20

Effective dose limit

Question 21

Lifetime occupational exposure must not exceed the radiographer age times by 10 msv

Answer 21

Cumulative effective dose

Question 22

Equal to the effective dose multiplied by the weighting factor

Answer 22

Equivalent dose

Question 23

Concept of radiologic practice that encourages radiation users to adopt measures that keep the dose to the patient and themselves at minimal level

Answer 23

ALARA

Question 24

Randomly occurring effects of radiation; the probability of such effects is proportional to the dose

Answer 24

Stochastic effect

Question 25

Effects of radiation that become more severe at high levels of radiation exposure and do not occur below a certain threshold

Answer 25

Deterministic effects

Question 26

Amount of energy deposited by radiation per unit length of tissue

Answer 26

Linear energy transfer

Question 27

Ability to produce biological damage directly proportional to LET

Answer 27

Relative biological effectiveness

Question 28

Effect that occurs when radiation directly strikes DNA in the cellular nucleus

Answer 28

Direct effect

Question 29

Effect that occurs when radiation strikes the water molecules in the cytoplasm of the cell

Answer 29

Indirect effect

Question 30

Effect that occurs as radiation energy is deposited in the water of the cell:

Answer 30

Radiolysis of water

Question 31

Erroneous information passed to subsequent generations via cell division

Answer 31

Mutation

Question 32

Cells are most sensitive to radiation when they are immature, undifferentiated, and rapidly dividing

Answer 32

Law of bergonie and tribondeau

Question 33

Cardinal principles of radiation protection

Answer 33

Distance time shielding

Question 34

Best protection against radiation exposure

Answer 34

Distance