The document discusses the effects of radiation exposure on people. It provides examples of major radiation exposures from nuclear incidents in Hiroshima and Nagasaki, Three Mile Island, and Chernobyl. These incidents caused many deaths from both the initial blasts and subsequent radiation exposure. The document emphasizes that while nuclear energy can be dangerous if not properly handled or regulated, lessons can be learned from past accidents to improve safety.

1. Effect of Radiation
s1180030 Keisuke Hashimoto

2. Contents
1.Unit of Radiation
2.Radiation is Harmful for People
3.Major Radiation Exposure(Hiroshima and Nagasaki)
4.Major Radiation Exposure(Three Mile island)
5.Major Radiation Exposure(Chernobyl)
6.Conclusion

3. Unit of Radiation
・The unit of Radiation is "rem".
・"rem" is a short of "roentgen equivalent in man".
・"rem" show us how the radiation is harmful for person.

4. Radiation is Harmful for People
1. 25 rems
People can find change of blood.
2.100 rems
People cause retching, vomiting, headache and some
white blood cells are destroyed.
3.300 rems
People cause combing, and cancer.
4. More than 450 rems
People may die.

5. Major Radiation Exposure( Hiroshima
and Nagasaki)
・In 1945, Nagasaki is fallen down nuclear bomb by America
and many people dead. More than 14 million people dead.
・People suffered for a long year, and The sad of people is very l

6. Major Radiation Exposure (Three Mile
Island)
>In 1979, Nuclear power plant blasted.
The radiation of nuclear power plant in three mile island is
very serious problem.
>People within 10 mile from the power plant, bombed. The
radiation is 8mm rem, as same as X-ray.

7. Major Radiation Exposure( Chernobyl)
>In 1986, Nuclear power plant of Chernobyl blasted.
Many people bombed because do not warning.
>Many people dead by the accident.
>The radiation degree of the accident is very high.

8. Conclusion
Nuclear is very dangerous. Radiation is also dangerous.
There many accident about nuclear power plant.
But, people can learn something important from these accident.
So, people can live with nuclear.