WebLearn about and revise electromagnetic waves, their uses and dangers, and the absorption and emission of radiation with GCSE Bitesize Physics. Because of their high energy, gamma rays are ionizing, meaning they can dislodge electrons from atoms, ultimately damaging living cells and causing a hazard to health. However, as with all radiation, it depends upon the dose that you receive. In small doses, very carefully targeted to limit exposure, they can be … See more At the turn of the twentieth century, two forms of radiation emitted by decaying atoms were known, namely alpha particles (which are helium nuclei) and beta particles (which are electronsand positrons). However, … See more To block gamma rays requires a dense material, and the thickness of that material depends on the substance. To reduce the strength of incoming gamma rays by a billion, you need 13.8 feet (4.2 meters) of water, 6.6 feet (2 m) … See more Given their ionizing power, it's fortunate that Earth's atmosphere is able to block gamma rays from space. For astronomers, however, that's … See more In 1963, the Soviet Union, the United Kingdom and the United States signed a nuclear test ban treaty that prohibited the world's superpowers … See more
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WebOct 23, 2009 · Best Answer. Copy. many people might think that gamma rays aren't dangerous well the can cause cancer as well as kill some healthy cells. Wiki User. ∙ … WebX-rays are absorbed by dense structures like bones, which is why X-ray photos are used to help identify broken bones. Ultraviolet waves, X-rays and gamma rays are types of ionising radiation . hillcroft barn
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WebThe gamma ray source used should have a long half-life. so that the hospital does not have to replace it too frequently Advantages sterilisation can be done without high temperatures; WebA gamma ray, also known as gamma radiation (symbol γ or ), is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei.It consists … WebJun 1, 2012 · FREE Physics revision notices on Energy Stores & Transmission. Designed by the teachers at SAVE MY EXAMS for which AQA GCSE Physics academic. FREE Remedies revision notes on Energy Stores & Transfers. hillcroft birtley