Transcript: Ionising radiation vs. Non-ionising radiation How to detect radiation Exposure What is background radiation? Background radiation is all around us. Some of it comes from natural sources and some comes from artificial sources. Background Radiation Bad Gastein and Radon Therapy Natural Background Radiation Artificial Background Radiation Radon Gas Outside of naturally occurring sources of radiation, there are man-made processes that produce radioactive material. Percentages Geiger Muller Tube Three types of natural background sources of radiation are: Cosmic Radiation Terrestrial Radiation Internal radiation
Transcript: Cosmic radiation Annual Dosage The main source of cosmic radiation are galactic cosmic waves. You can be exposed to cosmic radiation on flights Karyn: Radon in the air: 200 mrem Diagnostic x-rays: 40 mrem. Food and water: 40 mrem Cosmic radiation: 26 mrem Area of residence: 23 mrem Elevation from sea level: 9 mrem Video display terminal: 1 mrem Television viewing: 1 mrem Smoke detector: 0.008 mrem Airport luggage inspection typical x-ray machine: 0.002 mrem Your Total Dose: 340.01 mrem Background Radiation The main source of internal radiation is the human body. You can be exposed by breathing, eating, or having radioactive material pass through your skin. The main source of terrestrial radiation is the earth’s crust. You can be exposed from rock, soil, water, air, and in food. The most common sources of man made radiation are CT scans, televisions, medical X-rays, smoke detectors, nuclear medicine, airport security scanners, food irradiators, and radiography sources. Annual Dosage Precautions Background Radiation Measured in: Millirem -A unit in measuring radiation absorption and its effects. Careers Average: 350 mrem Up to 5,000 mrem per year for people who work with radioactive material 100 mrem for people who don’t work with radioactive material (in addition to the radiation we receive from natural background sources) Exceed annual dosage risks: Cancers- Leukemia,breast, bladder,colon, liver,lung, esophagus, ovarian, multiple myeloma, and stomach. By Jadie, Karyn, Maren The uniform microwave radiation remaining from the big bang. Annual Dosage Man Made Sources THE END Internal Radiation Terrestrial radiation General Information
Transcript: Radon Radiation Background Radiation Background Radiation Radon is a chemical element with symbol Rn and atomic number 86. It is a radioactive, colorless, odorless, tasteless noble gas, occurring naturally as a decay product of radium. Its most stable isotope What is it? Its a device for measuring radioactivity by detecting and counting ionizing particles. The Discovery of Radioactivity. In 1896 Henri Becquerel was using naturally fluorescent minerals to study the properties of x-rays, which had been discovered in 1895 by Most background radiation comes from natural sources, while most artificial radiation comes from medical examinations, such as x-ray photographs. Radiation can damage cells and make them cancerous. Radiation also has many practical uses. It can be used in medicine to trace where certain chemicals collect in the body, and also in industry, to control measuring equipment. Discovery of Radioactivity Geiger counters
Transcript: What is it? Radiations is used for a variety of different reasons. It is used in generating power, treating cancer. Background radiation is low level ionizing radiation that we are exposed to at an almost daily basis. By:Hossam Al Jaradi and James Leggit Background Radiation Where is it? What are its Uses? Background radiation is present all around us naturally such as from cosmic rays, in the food passed down from the radioactive materials in the soil. There is also radiation in the ground and buildings. Most of the artificial radiation emissions that come from man are in medicine through things like x-rays, radiotherapy, CAT scans and finally nuclear power/weapons. Artificial Emissions
Transcript: Detecting Radiation When photographic film comes in contact with radiation, it turns darker. The more radiation it absorbs, the darker it becomes. When a Geiger-Muller tube absorbs radiation, it sends an electric pulse to a counting machine, this creates a clicking sound. The higher the frequency of the clicking sound means the more radiation it is absorbing. Background Radiation Since the beginning of time, radiation has been bombarding us, all life, and everything else for that matter. What is Background Radiation? Photographic Film Geiger-Muller Tube Radiation on the Earth has many sources, including nuclear waste cosmic radiation inside the body rocks and soil medical uses of radiation radon gas as well as many other sources.
Transcript: Daily occurrence of background radiation where Radiation comes from Chernobyl in 1986 In 1986 a nuclear disaster occurred involving Chernobyl, Ukraine. Below is a picture after the coming months after Chernobyl, the picture only shows slight sources of radiation. Most forms of background radiation come from your own household appliances. Majority of fire alarms use Nuclear products in order to detect for any smoke. Quite a loot of radiation comes off of x-rays and othe medical appliances. Background radiation background radiation appears all around us. Before 1896, the only background radiation that occurred to anyone around them came from the rocks. Today background radiation comes from many man designed sources as well as natural sources. The radiation that appears from man made sources is from nuclear waste. People that would work daily with background radiation are ensured to take the correct precautions necessarily. Never to handle any type of nuclear substance with bare hands. When working with radiation on a daily basis you are then detected to ensure you are not carrying any harmful exposed radiation.
Transcript: emits more radiation than Unless its a International Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) 285 stations operating, 321 monitoring stations and 16 radionuclide laboratories when completed Can detect much lower quantities of radioactivity in air, but not in real time using seismic, hydroacoustic and infrasound technology, collect and transmit monitoring data to the CTBTO for analysis. Background Radiation 6.2mSv 0.1mSv From Full body Scanner Monitoring Systems 70uSv Living in Concrete 1yr Canadian Radiological Monitoring Network (CRMN) 26 environmental monitoring stations provides information on natural background radiation levels routinely collect air, precipitation, external gamma dose, drinking water, atmospheric water vapor, and milk for radioactivity analysis Doses of Background Radiation Average Doses per year Radiation Myths 1.Natural Cosmic (Sun and outer space) Radon (decay of U and Th) Terrestrial (U, Th and other natural radionuclides from earth crust) Internal human body (K-40 and C-14) Sources 3.Smoking (Additional ~ 2.8mSv/yr ) 2.Artificial Medical (mostly X-ray) Consumer products ( smoke detector etc.) Others (building materials, Nuclear Power plant, etc.) Fix Point Surveillance (FPS) network 71 detectors monitors public doses from radioactive materials in the air measure external gamma dose rates of Argon-41, Xenon-133 and Xenon-135 gamma dose rate from all sources, measured as Air KERMA (Kinetic Energy Released in Matter) Radiation from radiofrequency is non-ionizing 250uSv Yearly Limit
Transcript: Radiation -The release of energy in the form of moving waves or streams of particles. Natural Background Radiation The widespread construction of well insulated and sealed homes inthe northern industrialized world has led to radon becomes the pimary source of background radiation. What is Background Radiation? These energy can be low-level like microwaves and cell phones,or hight -level like x-ray or cosmic rays from outer space Well insulated house can result in the accumulation of radon within the dwelling,exposing its residents to high concentration . 1)Medical The global average human exposure to artificial radiation is primarily from medical imaging. Human contributors include,smoking, air travel,radioactive building materials, histrorical nuclear weapons testing, nuclear power accidents and nuclear industry operatrion . Radon is a decay product of uranium,realtively common in the earth's curst but more concentrated in ore-bearing rocks scattered around the world. Artificial Background Radiation Radiation exposure from radon is indirect which mean it has a short half-life(4days) and decay into other solid particulate.These radioactive are inhaled and remain lodged in the lungs,causing continued of lung cancer to human. Thank You for your attention ! .Civilian Air .There are two major civilian Radon air (radon) cosmic radiation terrestial sources food and water areas with high natural background radiation photoelectric neutron background Radiaactive material found in nature like soil,rocks,water,air and vegetation . The biggest source of natural background raidaion is Airborne Radon. 2.Nuclear accidents It is the ubiquitous(found everywhere) ionizing radiation present in the enviroment . Two types of background radiation 1.Natural Background Radiation 2.Artificial Background Radiation Background Radiation The Fukushima 1 nuclear accidents The highest level of purely natural background radiation ever recorded on the earth's surface was on a Brazillian Black Beach. The Chernobyl accident The Chernobyl accident
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