Radiation ppt2

Question 1

TWO BASIC TYPES OF RADIATION

Answer 1

Ø ELECTROMAGNETIC RADIATION
Ø PARTICULATE RADIATION

Question 2

Types of electromagnetic radiation

Answer 2

¡ RADIO WAVES ¡ MICROWAVES ¡ INFRARED
¡ VISIBLE LIGHT
¡ ULTRAVIOLET LIGHT ¡ X-RAYS
¡ GAMMA RAYS

Question 3

Have the longest wavelength in the electromagnetic spectra

Answer 3

Radio Waves

Question 4

Carry signals for television and cellular phones

Answer 4

Radio Waves

Question 5

Radio stations, for example, are identified through their frequency of transmission and are called ____ or ____

Answer 5

radiofrequency emissions or RF
emissions.

Question 6

waves that heat our food in a microwave oven

Answer 6

Longer microwaves

Question 7

used in remote sensing

Answer 7

shorter microwaves

Question 8

Lies between the visible and microwave portions of the spectrum

Answer 8

Infrared (IR)

Question 9

Primary source of infrared

Answer 9

heat or thermal radiation

Question 10

Infrared(IR) - Heats any substance on which it shines
Maybe considered_____

Answer 10

radiant heat

Question 11

3 categories of infrared

Answer 11

¡ Near-infrared ¡ Far-infrared ¡ Mid-infrared

Question 12

Infrared:
closest to visible light

Answer 12

Near-infrared

Question 13

Infrared (IR):
closest to microwaves

Answer 13

Far-infrared

Question 14

Infrared (IR):

region between near and far infrared

Answer 14

Mid-infrared

Question 15

The only EM waves visible to human eyes
Seen as the colors of the rainbow

Answer 15

Visible light

Question 16

Visible light:
Red has the _____ wavelength
Violet has the ____wavelength

Answer 16

longest;shortest

Question 17

Relatively harmful to the human body, but in controlled doses, can be used for medical purposes such as imaging the internal structures of the human body

Answer 17

xrays

Question 18

First observed and documented in November 8, 1895 by Wilhelm Conrad Roentgen

Answer 18

xrays

Question 19

Have the smallest wavelength and the most energy of any other wave in the EM spectrum

Answer 19

Gamma Rays

Question 20

Generated by radioactive atoms and in nuclear explosions

Answer 20

gamma rays

Question 21

Can kill living cells which medicine uses to its advantage, using____ to kill cancerous cells

Answer 21

gamma rays

Question 22

Stream of atomic or subatomic particles that may be positively charged or negatively charged or not at all

Answer 22

Particulate radiation

Question 23

Particulate Radiation- Atomic or subatomic particles which carry energy in the form of_____ or mass IN MOTION

Answer 23

kinetic energy

Question 24

Particulate Radiation is Also known as

Answer 24

corpuscular radiation

Question 25

Particulate Radiation is primarily produced by?

Answer 25

disintegration of an unstable atom

Question 26

Type of ionizing radiation ejected by the nuclei of some unstable atoms

Answer 26

Alpha Particles

Question 27

Alpha means

Answer 27

Heavy Slow

Question 28

positive electron

Answer 28

positron

Question 29

Beta means

Answer 29

high speed

Question 30

when all waves of visible light are seen together they make?

Answer 30

white light

Question 31

white light is broken apart when it shines through?

Answer 31

prism

Question 32

deviation in the ljne of travel

Answer 32

refraction

Question 33

source of UV light

Answer 33

sun

Question 34

most harmful and are almost completely absorbed by our atmosphere

Answer 34

UV-C

Question 35

harmful rays that cause sunburn

Answer 35

UV-B

Question 36

cause burning of the eye surface (snow blindness or photokeratitis)

Answer 36

UV-A

Question 37

3 Regions of Uv light

Answer 37

near far and extreme

Question 38

closest to visible light or optical light

Answer 38

NEAR UV

Question 39

lies between NUV and EUV; ionizing radiation completely absorbed by ozone

Answer 39

FAR UV

Question 40

closest to x-rays and the most energetic of the 3 regions; ionizing radiation observed by the atmosphere

Answer 40

Extreme UV

Question 41

Have the smallest wavelength and the most energy of any other wave in the EM spectrum

Answer 41

Gamma Rays

Question 42

Gamma rays are generated by ?

Answer 42

radioactive atoms and in nuclear explosions

Question 43

Can kill living cells which medicine uses to its advantage, using gamma rays to kill ____

Answer 43

cancerous cells

Question 44

3 regions of the EM spectrum most important to radiologic science:

Answer 44

Visible light Xray and Gamma radiation Radio frequency

Question 45

Difference of Xray and Gamma

Answer 45

origin; xrays are from electron clout, outside of the nucleus. Gamma comes from inside the nucleus, from radioactive material.

Question 46

Has mass of approximately 4 amu and carries 2 units of positive electric charge

Answer 46

Alpha Particles

Question 47

Emitted only from the nuclei of heavy elements (high atomic numbers)

Answer 47

Alpha Particles

Question 48

may be used to treat cancer

Answer 48

Radium-226

Question 49

Alpha emitters:

Answer 49

Radium-226 Polonium-210 Americium-241

Question 50

alpha emitter in smoke detectors

Answer 50

Americium-241

Question 51

serves as a static eliminator in paper mills and other industries

Answer 51

Polonium-210

Question 52

High velocity electrons with an electrical charge of -1

Answer 52

Beta Particles

Question 53

¡ Light particles with atomic mass number of 0 ¡ Carry one unit of negative or positive charge

Answer 53

Beta Particles

Question 54

credited with the discovery of beta particles

Answer 54

Henri Becquerel

Question 55

Beta emitters

Answer 55

Iodine-131 Strontium-90 Tritium

Question 56

treatment of thyroid disorders (cancer, Grave’s disease)

Answer 56

Iodine-131

Question 57

radioactive tracer in medical and agricultural studies; in a controlled manner, used to treat bone tumors

Answer 57

Strontium-90

Question 58

life science and drug metabolism studies

Answer 58

Tritium

Question 59

Positive beta particles

Answer 59

positron

Question 60

Positron or ___is the antiparticle or the antimatter counterpart of the electron

Answer 60

anti-electron