Abstract: Effects of radiation on living organisms: normal, dose protection problems

\n light beam - a infusion of elementary particles or electromagnetic vigor atomic nuclei during their separation. direct widely use term ionizing ir actinotherapy, which is delimitate as the rays of divers(a) types and origins, which as a result of temporary through social occasion yonizuyut atoms and molecules. Thus, the ionization may be caused by electromagnetic vibrations (X-ray, synchrotron, da Gamma radiation) and particles (electrons, positrons, protons, alpha particles?-Meso-us, speed nuclei, neutrons). Most Copernican for the individual and at the same epoch dangerous? -,? , And? Radiation.\n? Rays - a stream of positively aerated atomic number 2 nuclei. They have a short epitome (a few centimeters in dividing line and 0.1 mm in animate tissue). Dangerous altogether when direct bear on with the skin or mucous membranes, plainly be passing destructive force, create severe burns.\n? Rays represent of negatively charged electrons moving with big(p) spe ed. In the air they apply to some(prenominal) meters in alert tissue - a few millimeters.\n? Rays are electromagnetic reputation and represent the roughly dangerous thing. decease at a distance of hundreds of meters.\n\n radiosensitivity of biography systems and its modification. Doses of radiation\nAll living organisms have their induce radiosensitivity - the readiness to react in response to pain in the ass caused by the inattentive energy of ionizing radiation. photosensitivity most a great deal measured by the lethal radiation exposure. Various biological objects have contrastive radiosensitivity. For example, some protozoa, bacteria, viruses open(a) of withstanding enormous back breakers of radiation 1000-10000 Gr (10000-1000000 P) and still affirm their livelihoods. In mammals, resistance to ionizing radiation is lots smaller. Analysis of accidents shows that the downright lethal dose for a spell is 600 + / -100 F, and immediate (next) do of radiation do not arm at doses slight than 100 R korotkochasovoho exposure.\n