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Just under half of man's exposure to external natural radiation comes from?
Radon gas, a radioactive gas that is formed from the decay of uranium in soil and rock. It can seep into buildings through cracks in the foundation and accumulate at high levels indoors, posing a health risk.
How is nuclear radiation harmful?
Radiation of any type speeds up the growth rate of cells and in high doses can cause burns. The ever-so-common sunburn is actually a radiation burn because the sun gives off radiation. This is also why people who stay out in the sun without proper protection from it are more likely to get skin cancer. This is because skin cancer is the rapid and uncontrolled growth of cells.
What is the average annual dose of radiation exposure to radiation workers?
There is no average dose as exposure varies from place to place, but anyone working with radiation should consult their Local Rules for guidance, and wear a dosimeter. The IAEA recommended that the annual dose for workers be under 20mSv. (20 milli-sieverts, where 1 sievert (J/kg) is the radiation required to impart 1 joule of energy in 1 kg of matter.) The UK and the EU have very strict guidelines for staff that work with ionising radiation. These are the dose limits that have been set up to help protect staff from unheathy amounts of radiation. Whole Body Dose Limits Per Year: Radiation Workers ages 18 yrs and older = 50 mSv. Trainees aged 18 yrs and older = 1 mSv General public (frequent exposure) = 1 mSv General public (infrequent exposure) = 5 mSv == == == == == ==
Where is factory amp located in 94 Grand Cherokee ltd with infinity gold stereo?
An external amp comes stock in the original player that came with the jeep. The external amp is under the back seat, on the driver's side.
What are the characteristics of over exposure and under exposure?
OVER EXPOSURE - too bright, the image would result to being whiter than normal. UNDER EXPOSURE - too dark, the image would likely to appear black
What are environmental factors affecting mutation under radiation?
radiation survival pressure
What are the effects of aperture in a picture?
Possible over and or under-exposure. But basically, in English, it effects the brightness/exposure of your image.
How do you define exposure to loss?
An exposure to loss is the combination of the following: A person or property that has experienced an event that will result in a quantifiable monetary loss. In an insurance claim an exposure is a party that has monetary damages under a covered peril or occurrence under a policy.
How much nuclear radiation is considered safe for humans?
From MIT: Adult: 5,000 Millirems per year The current federal occupational limit of exposure per year for an adult (the limit for a worker using radiation) is "as low as reasonably achievable; however, not to exceed 5,000 millirems" above the 300+ millirems of natural sources of radiation and any medical radiation. Radiation workers wear badges made of photographic film which indicate the exposure to radiation. Readings typically are taken monthly. A federal advisory committee recommends that the lifetime exposure be limited to a person's age multiplied by 1,000 millirems (example: for a 65-year-old person, 65,000 millirems). Minor: 500 Millirems The maximum permissible exposure for a person under 18 working with radiation is one-tenth the adult limit or not to exceed 500 millirems per year above the 300+ millirems of natural sources, plus medical radiation. This was established in 1957 and reviewed as recently as 1990. Fetus: 500 Millirems Or 50 Per Month (New Rule Jan. 1, 1994) New federal regulations went into effect New Year's Day, establishing for the first time an exposure limit for the embryo or fetus of a pregnant woman exposed to radiation at work. The limit for the gestation period is 500 millirems, with a recommendation that the exposure of a fetus be no more than 50 millirems per month. Weight Variables Like alcohol intoxication levels, levels of exposure to radioactivity (due to radioactivity deposited in the body) depend on a person's weight. A diagnostic tracer of one microcurie of radioactive calcium 45, given orally, would result in an exposure of 3.7 millirems for a 100-pound person, and half of that, 1.85 millirems, for a 200-pound person. Therapeutic Radiation Therapeutic radiation treatment that is delivered by administering radioactive material via the mouth or by injection usually results in high, very localized doses to a small part of the body, which absorbs most of the radioactivity. The radioactivity concentrates and remains in the target organ (for example, the thyroid) for a longer period of time than does the radioactivity that is distributed to the rest of the body. The radiation exposure for other parts of the body is a function of the amount of radioactivity per pound and the time the radioactivity is present in the tissue. As well if you are looking for ways to reduce your risk of radiation there are certain foods and supplements that you can take that can greatly reduce your risk, squidoo.com/radiation-alert-inspector-measure has more answers
Can radiation be detected because it ionizes the atoms it affects?
Ionizing radiation is only one type of radiation. Visible light, for example, falls under the category of electromagnetic radiation. Radiation has many different detectable consequences.
The box like device attached under the tube housing that allows the limited operator to vary the size of the radiation field is called a?
collimator. The collimator is a device used in radiology to shape and limit the size of the X-ray beam, allowing radiographers to target specific areas of the body for imaging while minimizing unnecessary radiation exposure to surrounding tissues.
Which is more dangerous living near a cell tower base station or living under one?
Living under a cell tower base station is generally considered more dangerous than living near one. Radiation exposure decreases significantly with distance, so living directly under the tower would expose you to higher levels of electromagnetic radiation. It's always advisable to maintain a safe distance from cell towers to minimize exposure risks.
