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NUCLEAR RADIATION

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Boneesha Kaur

on 18 June 2015

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Transcript of NUCLEAR RADIATION

When people think about nuclear radiation, they think.....


Not literally though!
This video will explore the types of nuclear radiation and the effects on mankind. Please let me take this golden opportunity to refresh your memory on the definition of nuclear radiation.

Definition:
Nuclear radiation is the rays or particles emitted by an atomic nuclei. Now, without further ado, let me introduce the 3 types of DEADLY RADIATION!!

WHAT IS NUCLEAR RADIATION?
NUCLEAR RADIATION

Alpha radiation - (symbol) only occurs
when the nucleus has too many protons which will cause excessive repulsion.
Alpha radiation :

Travels at 10% the speed of light
(30 000 km/s).
Cannot penetrate through skin or paper because of the large mass particle.
Very dangerous if ingested or inhaled.


TYPES OF RADIATION

1. Alpha Radiation

Beta radiation - (symbol) occurs when the neutron and proton ratio is too great in the nucleus and causes instability.
In essential beta radiation, a neutron is turned into a proton and an electron. The electron is then emitted.
Beta radiation:

Travels at
90%
the speed of light
(270 00 km/s)
.
Can penetrate through skin, paper and several mm of very small mass of particle.
Very dangerous if ingested or inhaled.
2. BETA RADIATION
Gamma radiation - (symbol) occurs because the nucleus is at high energy.
A nucleus then falls down to a lower energy state and in the process emits high energy photon known as a gamma particle.
Gamma radiation:

Travels at 100% the speed of light
(300 000 km/s)
.
Easily penetrates paper, skin and even up to 5 cm of lead because it has no mass and travels so fast!
Can easily pass through human body and damage tissue.

3. GAMMA RADIATION
Radiation is harmful to the human body. Any type of exposure will cause side - effects. The symptoms of radiation exposure include:

i. Nausea




ii.Vomiting




iii.Fever




iv.Hair loss

v.Diarrhea.








I hope this serves as an eye-opener about the dangers of nuclear radiation to Mankind.

THANK YOU!


PRODUCED BY:

BONEESHA KAUR (9A)
SYMPTOMS OF RADIATION
The
Fukushima Daiichi Nuclear Power Plant
taught us that mankind can be cruel. As you may know, this major accident was caused not by a mistake but simply by an Earthquake and a tsunami that hit Tohoku in 2011. Radioactive isotopes were released from reactor containment vessels as a result of venting to reduce gaseous pressure and the discharges of coolant water seeped into the sea because of this the Japanese government made a 20 km exclusion zone around the power plant.
RADIOACTIVE DISASTER
Alexander Litvinenko - Polonium 210 Poisoning
BEFORE
AFTER
Beta Radiation Burn
Full transcript