Most patients with brain tumors receive one of two types of radiation: external beam radiation, in which the tumor is treated over the course of several weeks, or radiosurgery, in which patients receive a high dose of radiation ...
10 hours ago
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Use of an eye ultrasound may quickly and safely identify children with brain drainage tube failure in the emergency department, according to a new study. The research will be presented at the Pediatric Academic Societies ...
May 3, 2024
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In physics, radiation describes any process in which energy emitted by one body travels through a medium or through space, ultimately to be absorbed by another body. Non-physicists often associate the word with ionizing radiation (e.g., as occurring in nuclear weapons, nuclear reactors, and radioactive substances), but it can also refer to electromagnetic radiation (i.e., radio waves, infrared light, visible light, ultraviolet light, and X-rays) which can also be ionizing radiation, to acoustic radiation, or to other more obscure processes. What makes it radiation is that the energy radiates (i.e., it travels outward in straight lines in all directions) from the source. This geometry naturally leads to a system of measurements and physical units that are equally applicable to all types of radiation.
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