industry

• What is a gamma ray camera used for?


  It is used to examine the contents of objects, similar to x-ray cameras at airports.
• How does a gamma ray camera work?


  A gamma radiation source is placed on one side of the object, and a gamma camera is on the other side.
• Why are gamma rays preferred over x-rays for certain applications?


  Gamma rays can pass through more objects than x-rays.
• What problems can gamma radiography detect?


  It can detect faults in casting and welding.
• What is an advantage of gamma radiography compared to x-rays?


  Gamma sources can be small and do not require a power source or large equipment.
• What are large tanks used for storing raw materials and fuel called?

  They are called hoppers.
• How do radioactive isotopes gauge the amount of material in a storage container?


  They measure the amount of radiation absorbed by the material.
• What happens to the readings on the detectors in a hopper when coal is present?


  The lower detector will have a small reading because coal absorbs a large amount of radiation.
• What is a disadvantage of optical gauging systems when measuring coal?


  Coal dust might cause false readings in optical gauging systems.
• How does the gamma ray system work properly despite coal dust?


  Coal dust is much less dense than coal, allowing the gamma ray system to function correctly.
• What is another application of radioisotopes in industry?


  They are used to monitor the thickness of plastic sheeting and film.
• How does the thickness of plastic sheeting affect radiation absorption?


  The thicker the sheet, the greater the amount of radiation it absorbs.
• What can be controlled during the manufacture of plastic sheeting?

  The thickness of the sheeting can be controlled by measuring radiation passing through it.
• How are radioisotopes used to check the flow of liquids in industrial processes?


  Very tiny amounts of radiation can be easily detected to monitor for leaks.
• What is one use of radioactive tracers in industry?


  They are used to measure the rate of spread of sewage.
• How are radioisotopes used to measure ocean currents?


  Radioisotopes from a boat placed in the sea are used to measure the rate of the ocean currents.
• What is the significance of measuring the rate of ocean currents using radioisotopes?


  It helps in understanding ocean dynamics and environmental monitoring.