PDF-NONIONIZING RADIATION NIR

SAFETY MANUALEHS Radiation Safety Nonionizing Radiation Safety Manual June 2Page of CONTENTSIntroduction to NIRRegulatory RequirementsThe Electromagnetic SpectrumStatic Magnetic FieldsMagnetic FieldsA. These definitions ma y not be accurate for complex or irregularly shaped sources such as arbitrary radiation from broken or improperly connected waveguide flanges Separate measurements of both the electric and magnetic fields should be made until it The US Environmental Protection Agency EPA is responsible for advising the government on radiation hazards and regulating certain sources of radioactivity in the environment This booklet provides basic facts about radiation science as well as inform Ionising radiation Radiation is all around us all day, every day. It sustains our lives. We see because our eyes detectradiation, whether from the sun or from a glowingfire, keeps us warm. We often co What is radiation?. Radiation is the giving off of high amounts of energy in the form of particles and/or waves.. The Electroscope. The Geiger Counter. Disposal of Radioactive Wastes. Radiation in Household Products. What are they? . exposure … contamination. Are they the same?. Radioactivity. Spontaneous emission of radiation from the nucleus of an unstable isotope. Disintegration Decay. Demonstrate Decontamination. Radiation refers to the process that is concerned with the passage of energy between places through space. . It is the radiation generated by sun that . regulates the temperature of earth. . . CLASSIFICATION OF RADIATION: ionizing or non-ionizing types. . GUIDE Activity The rate of disintegration per unit time is measured in curies and based on the following standard: Unit Quantity 1 curie (Ci) 3.7 X 10 10 dps (disintegrations per second) 1 millicuri The cell life cycle The cell cycle G0 = Cell is resting G1 = RNA and proteins are made S = DNA is made G2 = Apparatus for mitosis is built M = Mitosis (the cell divides into 2 cells) G0 phase (restin . Radiation is the emission of energy in the form of waves or particles. Radiation that is so powerful that it can remove electrons from atoms is called ionizing.. Examples of types of ionizing radiation are x-rays from medical machines and gamma rays from radioactive substances. . •. Radiation biology . is the study of the action of ionizing radiation on living organisms . •The action is very complex, involving physics, chemistry, and biology . –Different types of ionizing radiation . AASIF MAJEED LONE . ASSISTANT PROFESSOR. CENTURION UNIVERSIT. Y. Dosimetry. Radiation Dosimetry is a study in physics which deals with the measurement of radiation which may include Exposure, Absorbed dose etc., . Filtration :. In dentistry , the usefulness of x- ray depend on their ability to penetrate dental hard tissues . During production of x- ray , their are two types of wave lengths , . long wave length and short wave length . Physics Behind PHITS Simulation. 2. Radiation & Radioactivity. Ability to generate radiation due to decay of nucleus. *to be explained later. Example. : Spent nuclear fuel. Plume containing . The Sun produces energy in this manner.. Hydrogen bombs use this process.. Much more energy per gram is released by fusion than is by fission.. Fusion reactions create no radioactive waste . Unfortunately it is much harder to start and control a self sustaining reaction..