High energy electro magnetic wave which travels at the speed of light
relative mass of alpha particle

4
Relative mass of beta
~1/2000
Relative mass of gamma wave
0
Relative charge of alpha particle 

+2
Relative charge of beta 

-1
Which is the most ionising, alpha beta gamma?
alpha
Which has The highest penetrating power? Alphabetagamma?

Gamma
What is gamma radiations range in air?
infinite
Natural sources of radiation
Granite
Radon gas in air
Cosmic rays
Artificial sources of radiation
Falloutfromnuclearweapontesting
Radiographydepartment
Nuclear waste
Nuclear accidents
Units of radiation dose
Sieverts
Which radiation is the most dangerous inside your body?
alpha source
Which is the most dangerous radiation Outside your body?
Beta source
Nuclear fission

Large nuclei splitting
Nuclear fusion
Small nuclei fusing
Fission process
Low energy neutron combines with u235
to give u236
Fission occurs releasing daughter nuclei +3neutrons + energy
Fusion process
Small nuclei fuse into larger nucleus releasing energy
Electrostatic repulsion between nuclei makes this difficult
NFR

nuclear fusion reactor
NFR fuel rods

Assembled into rods, they can be insterted and removed to load and unload the reactor, each of these it used for a few months until the amount of u235 is greatly reduces
NFR control rods

these are made if materials that absorb neutron such as boron if they are fully inserted the chain reaction stops , if they are moved out the reaction starts going faster and faster
NFR moderator

The gaps between the fuel rods and control rods are filled with this it is usually carbon or heavy water the job of this part is tk slow down the neutrons emitted by u235 without it the neutrons will be going too fast and will escape without causing fission
NFR cooling unit

This is used to remove heat , pressurised water js circulated through the reaction core, then it goes through the sealed pipes to and from a heat exchanger, the water is used to turn turbines once it has extracted the heat.