Question

List the various types of detector commonly used in measurement of radioactivity. Discuss any one of them in detail

08 Mar 2018
Answer :
Word Count : 570

There are three types of radiation detection devices:

  • The Electroscope
  • The Cloud Chamber
  • Other Detection Devices

THE ELECTROSCOPE

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Marie Curie used an electroscope to study the radioactivity or Uranium ores. The electroscope is a fairly simple device comprised of a metal rod with two thin leaves attached to one end. If the electroscope is given a negative charge, the metal leaves will separate from each other. It is this characteristic that makes the electroscope useful as a detection device. A negatively charged electroscope will discharge when ions in the air remove electrons from it, and consequently, a positively charged electroscope will discharge when it takes electrons from the air around it. The rate of discharge of the electroscope is a measure of ions in the air and can be used as a basis of measurement and detection.

THE CLOUD CHAMBER

Image ignouacademy-com--p-list-26701

A unique device for detection and

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