Radiation definitions

Question 1

Tera

Answer 1

X10 12

Question 2

Giga

Answer 2

X10 9

Question 3

Mega

Answer 3

X10 6

Question 4

Kilo

Answer 4

X10 3

Question 5

Centi

Answer 5

X10 -2

Question 6

Milli

Answer 6

X10 -3

Question 7

Micro

Answer 7

X10 -6

Question 8

Nano

Answer 8

X10 -9

Question 9

Pico

Answer 9

X10 -12

Question 10

Alpha atom

Answer 10

Helium nucleus, slowest of all, heaviest, least penetrating, highest ionising

Question 11

Beta

Answer 11

Fast moving electron, middle speed,

Question 12

Gamma

Answer 12

High frequency waves, slowest of all, least penatrating, most ionising

Question 13

Ionising

Answer 13

The gain or loss of an electron

Question 14

Alpha charge

Answer 14

+2

Question 15

Beta charge

Answer 15

-1

Question 16

Gamma charge

Answer 16

0

Question 17

What stops alpha

Answer 17

Sheet of paper

Question 18

What stops beta

Answer 18

5mm thick aluminium

Question 19

What stops gamma

Answer 19

2cm thick lead

Question 21

Absorbed dose formula

Answer 21

D=E/m

Question 22

Absorbed dose unit

Answer 22

Gray (Gy)

Question 23

Energy absorbed umit

Answer 23

Joule (J)

Question 24

Equivalent dose formula

Answer 24

H=DXwR

Question 25

Weighting factor

Answer 25

n/a

Question 26

Equivalent dose rate

Answer 26

H (with dot on top)= H/t

Question 26

Equivalent dose rate

Answer 26

Sieverts per second (SVs-1)

Question 27

Benefits of nuclear fusion

Answer 27

No radiation wasted, fuel is cheap and abundant.

Question 28

Problems with nuclear fusion

Answer 28

Needs tons of energy, needs to be contained in magnetic field

Question 29

Benefits of nuclear fission

Answer 29

Not much carbon dioxide is produced, less fuel needed.