Monday, March 21, 2011

Radiation Dose Limits

. Monday, March 21, 2011

Actually, radiation is not only come from nuclear, but also from our environment. Radiation originating from natural is often called the background cosmos. Apart from nature, radiation can also come from medical treatment such as CT scans, X-rays, and so forth.

Outside the background radiation, the International Atomic Energy Agency (IAEA) has made a provision of radiation dose limit that can be received in a year. Japan has a limit of 10 miliSievert radiation dose (mSv) per year, while in Indonesia set 1 mSv for the general public within a year. If for reactor workers, radiation dose of 20 mSv is set for 5 years, but must not exceed 50 mSv in a year.

Based on it, if you're in Japan now, you can perform a mathematical calculation. Like this, radiation on March 15, 2011 in Miyagi, Japan, for example, 0.18 mSv. So to achieve the recommended limits, there is still need 2600 days. Anyone who is in the environment with the risk of radiation exposure required to calculate the dose of radiation. If excessive radiation dose, complaints such as nausea, headache, diarrhea, and fever usually be felt. If very large dose, its impact is death.

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