Effects of Radiation Exposure s1180035 Shota Furuya
Contents● Types of Radiations● Effects of Ionizing Radiations● Types of Ionizing Radiations● Productions of Nuclear Explosion● Distinctions of I-131 and Cs-137● Risk of Radiation Exposure● Conclusion
Types of Radiation Non-ionizing Radiation Ionizing Radiation NOT Harmful HarmfulIncluding Including ● Radio waves ● X-rays ● Cellphone waves ● Gamma rays ● Microwaves ● Alpha or Beta particles ● IR or UV rays ● etc. ● etc.
Effects of Ionizing Radiation Nausea, Fatigue, Vomiting Hair Loss, Diarrhea Destruction of intestinal lining, Dehydration Loss of consciousness and Death
Productions of Nuclear Explosion X rays, Gamma rays Radioactive Materials● Occur when it blasts ● Includes I-131, Cs-137,● Give dose of radiation to Sr-90, etc. people immediately ● Form ashes or clouds● Kill people directly or called "fallout" aggravate injuries ● Can collect on skins and clothes ● Can emit radiations and it pierces skins ● Can accumulate in foods, water and drinks
Distinctions of I-131 and Cs-137 Iodine - 137 Cesium - 137● Half-life : 8 days ● Half-life : 30 years● Absorbed in thyroid gland ● Absorbed in soft tissues● Can cause tumors ● Can cause sarcomas● Especially dangerous for children● Can prevent by taking tablets of ordinary iodine More dangerous than I-131
Risk of Radiation ExposureMeasured in sieverts[Sv]500,000 μSv : Nausea, fatigue within hours750,000 μSv : Hair loss within 2 or 3 weeks1,000,000 μSv : Hemorrhage4,000,000 μSv : Sudden Death
Conclusion● Ionizing radiation affects to our body● Its effects are devastatingly serious● Especially dangerous material is Cs-137