uses of radioactive substances
Answers
Radionuclides play a huge role in research. Biochemical researchers use short-lived nuclides for genetic engineering research. Nuclides enable the researchers to identify biochemical and cellular changes that may otherwise not be easily seen. Radionuclides used in research typically are very small quantities.
Industrial Use of Radionuclides
Many industrial nuclides are found in devices called "fixed gauges". Fixed gauges contain a sealed radioactive capsule that is mounted in a fixed position on a pipe, conveyor belt, or process line. Radioactive sources move across the width of huge paper-making machines to ensure that the paper quality remains constant. Radioactive gauges often are combined with computer systems that automatically monitor the amount of raw process material required for a perfect sheet of paper or fiberboard. Some nuclides are used to manufacture other products. Radioactive materials are incorporated into "labeled" chemicals used for research; nuclides are incorporated into medical products for treatment or diagnosis purposes; and nuclides are used to make solid or "sealed sources" used in healing arts, industry, and research.
Field Use of Radioactive Materials
Radioactive materials as sealed sources are used at construction sites. Known as Portable Gauges, these devices can be commonly seen at new road construction sites. They are used to measure moisture content and density of construction materials, including asphalt paving mix. Without these devices, engineers would be required to spend many more hours analyzing roadbeds and surfaces before paving could be done. Portable Gauges allow the highway construction crews to work much faster and accomplish more in a shorter period of time.
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