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Sw3_slide1 Sw3_slide1 Presentation Transcript

  • Nuclear radiation and humans health s1180197 Kana Horii
  • Tow types of radiations ● Non-Ionizing radiation ➩Refers to any type of electromagnetic radiation that doesnot carry enough energy per quantum to ionize atoms ormolecules—that is, to completely remove an electron from an atomor molecule. ● Ionizing radiation ➩The action of the substance, either directly or indirectlyionizing the material (ionization effect) that the ability of ionizing
  • Non-ionizingRadiation Source Wavelength Frequency Biological effectsUVA Black light 318-400 nm 750-950 THz Eye: photochemical Sunlight cataract Skin: erythema, pigmentationVisible light Lasers 400-780 nm 385-750 THz Eye: photochemical Sunlight & thermal retinal Fire injury LED Skin: photoagingMicrowave PCS phones 1 mm - 33cm 1-300GHz Heating of body Cell phone tissue microwave oven Wi-FiRadio-frequency Cell phone 33cm - 3km 100kHz-1GHz Heading of bodyradiationn Television tissue FM,AM Raised body coedless phone temprature
  • ionizingRadiation Energy WRX-rays 1Ganmma raysElectronsPositronsMuonsNeutrons <10 keV - 20 Mev 5-20Protons >2MeV 2Alpha particles 20Fission fragmentsHeavy nuclei
  • Radiation exposure  Radiation exposure is that the human body must be exposed tothe massive dose of radiation. It dies when the symptom is heavy.Symptoms caused by exposure ● Leukemia ● Cancer ● Nausea ● headache
  • Nuclear bombNuclear bomb is a nuclearweapon that explodes it by thenuclear fission reaction thatatomic nuclei such as theuranium and plutonium. cause.The power of an atomic bomb isindiscrimination and a largeamount of Weapons of massdestruction that are extremelylarge compared with conventionalarms, and slaughtered.
  • Relation radiation from nuclear plant and nuclear bomb1. Uranium concentration ➩ The nuclear power plant doesnt explode like theatomic                 bomb because the uranium concentration islow. 2. Rapidity of response of nuclear material ➩ The atomic bomb does instantaneously thoughnuclear                 power generation does the reaction spendingtime.
  • Conclusion 1. There are two radiation, it is non-ionizing and ionizing. However, only ionizing is harmful in the human body. 2. The nuclear power plant and the atomic bomb have a bigThe bloodshed ability of the nuclear power plant is lowerthan that of the atomic bomb.