Category: Radiation

Is there radiation in oil? The geologic formations that contain oil and gas deposits also contain naturally-occurring radionuclides, which are referred to as Naturally Occurring Radioactive Materials (NORM): Uranium and…

The half-life of a first-order reaction is a constant that is related to the rate constant for the reaction: t1/2 = 0.693/k. Radioactive decay reactions are first-order reactions. The rate…

7. “Drug concentration” is derived by collecting a blood sample at any time after drug administration and measuring the amount of a drug in a given volume of blood plasma…

Naturally occurring radiation can be found all around us. Radiation can be found in soils, in our air and water, and in us. Because it occurs in our natural environment,…

Was Chernobyl a PWR or BWR? Chernobyl's reactor design isn't used in the US US nuclear power plants use pressurized water reactors (PWR) and boiling water reactors (BWR), neither of…

How much iodine do I need? Adults need 140 micrograms (μg) of iodine a day. Most people should be able to get all the iodine they need by eating a…

The polymer is 11 percent gold by weight, and the gold atoms in the substance efficiently scatter or absorb most forms of radiation, including X-rays. Chemically incorporated into a polymer,…

How far can radiation travel from a nuclear power plant explosion? 50 miles Detonating nuclear weapons above ground sends radioactive materials as high as 50 miles into the atmosphere. How…

Radio waves, microwaves, visible light, and x rays are all examples of electromagnetic waves that differ from each other in wavelength. (a) Longer wavelength; (b) shorter wavelength. Electromagnetic waves are…

Shielding: Barriers of lead, concrete, or water provide protection from penetrating gamma rays. Gamma rays can pass completely through the human body; as they pass through, they can cause damage…