The standard unit of radiation related to biological hazard is known as sievert denoted by Sv. The smaller unit for the same is called rem (100 rem is 1 Sv). The difference between the unit of absorbed dose(Gray / rad) and Sv is that sievert also takes into account the biological effectiveness of the different types of radiation
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The standard unit of radiation related to biologic hazard is known as the sievert (Sv). This unit quantifies the biological effect of ionizing radiation on human tissue. It incorporates factors such as the type of radiation, the energy absorbed, and the sensitivity of the exposed tissue.
The International System's standard unit for biologically hazardous levels of radiation is the Sievert. The US uses rads, which are converted at 100 rads to a Sievert.
The Chicago Pile did not produce a significant radiation hazard. Safety measures were taken to prevent harmful exposure, and the experiment was conducted in a controlled environment.
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A hazard becomes a disaster when it interacts with vulnerable people, infrastructure, or the environment in a way that results in significant harm or damage. Factors such as population density, lack of preparedness, and inadequate response can amplify the impact of the hazard, turning it into a disaster.
Background radiation originates from various sources such as cosmic rays from space, naturally occurring radioactive elements in the Earth's crust, and even human-made sources like medical imaging procedures and nuclear power plants. This radiation is constantly present in the environment at low levels and can be detected all around us.
Advantages: Increased protection against solar radiation for satellites and astronauts. Potential for studying the impact of radiation on technology and human health. Disadvantages: Risk of interference with communication and navigation systems. Increased space debris from the collision, posing a hazard to other satellites and spacecraft.