A radioactive tracer, radiotracer, or radioactive label is a synthetic derivative of a natural compound in which one or more atoms have been replaced...

for both diagnosis and treatment. An imaging tracer made with radionuclides is called a radioactive tracer. A pharmaceutical drug made with radionuclides...

also one of the most commonly used gamma-emitting radioactive industrial tracer. Radioactive tracer isotopes are injected with hydraulic fracturing fluid...

tissues Isotopic tracer, a substance with an isotope that has been enriched to a greater level than that found in nature Radioactive tracer, a substance containing...

pharmaceutical drugs that are radioactive). Radiopharmaceuticals are used in the field of nuclear medicine as radioactive tracers in medical imaging and in...

by injecting a radioactive tracer into a peripheral vein usually in arms and then following the path of tracer by camera as the tracer moves to lungs...

does not vary due to radioactive decay). Stable isotope labeling involves the use of non-radioactive isotopes that can act as tracers used to model several...

laureate, recognized in 1943 for his key role in the development of radioactive tracers to study chemical processes such as in the metabolism of animals...

Radioactive sources are used for logging formation parameters. Radioactive tracers, along with the other substances in hydraulic-fracturing fluid, are...

This isotope has also found use in nuclear weapons research and as a radioactive tracer in hydrological research. 198Au was possibly observed for the first...

containing gamma-emitting tracer isotopes is used to trace and measure fractures.[citation needed] A 1995 study found that radioactive tracers were used in over...

self-illuminating key chains. It is used in a medical and scientific setting as a radioactive tracer. Tritium is also used as a nuclear fusion fuel, along with more abundant...

chemical tracer which is attracted to or concentrated by the activity which is being studied. That chemical tracer incorporates a short lived radioactive isotope...

used medical radioisotope in the world. Technetium-99m is used as a radioactive tracer and can be detected in the body by medical equipment (gamma cameras)...

would be inappropriate to proceed with injecting the patient with the radioactive tracer. When the benefit does justify the procedure, then the radiation exposure...

determined through the dilution principle (i.e. similar as the case for radioactive tracer methods). Although CO gas in large volumes is toxic to humans, the...

years, the half-life of tritium. Beta-plus (or positron) decay of a radioactive tracer isotope is the source of the positrons used in positron emission tomography...

current scans). The same tracer may also be used for the diagnosis of types of dementia. Less often, other radioactive tracers, usually but not always...

brainstem, and cerebellum without ionizing radiation (X-rays) or radioactive tracers. The first MR images of a human brain were obtained in 1978 by two...

cobalt-59. Cobalt-60 is a commercially important radioisotope, used as a radioactive tracer and for the production of high-energy gamma rays. Cobalt is also used...

gum, biocides, emulsion breakers, emulsifiers, 2-butoxyethanol, and radioactive tracer isotopes. Proppants have greater permeability than small mesh proppants...

oxygen-15 (15O), a positron-emitting isotope. 15O-water is used as a radioactive tracer for measuring and quantifying blood flow using positron emission tomography...

(0.39 mSv/year) and radon (variable). Carbon-14 can be used as a radioactive tracer in medicine. In the initial variant of the urea breath test, a diagnostic...

it can be used by nuclear medicine physicians as a radioactive tracer for SPECT where the radioactive isotope is iodine-123 or iodine-125. The main purpose...

Artificial X-ray sources Radiopharmaceuticals in radiopharmacology Radioactive tracer Brachytherapy X-ray tube, a vacuum tube that produces X-rays when...

industry in a similar manner for leak detection as a Radioactive tracer. Disposal of expired radioactive sources presents similar challenges to the disposal...

retained.[citation needed] 40 K has also been extensively used as a radioactive tracer in studies of weathering.[citation needed] All other potassium isotopes...

can be used in chemical and biological labeling experiments as a radioactive tracer. Deuterium–tritium fusion uses 2H and 3H as its main reactants, giving...

the health and function of the gallbladder and biliary system. A radioactive tracer is injected through any accessible vein and then allowed to circulate...

A tracer-gas leak testing method is a nondestructive testing method that detects gas leaks. A variety of methods with different sensitivities exist. Tracer-gas...