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Half-life and radioactive equilibrium

Half-life and radioactive equilibrium

Item no.: P2520102

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The half-life of a Ba-137 m daughter substance eluted (washed) out of a Cs-137 isotope generator is measured directly and is also determined from the increase in activity after elution.


  1. To measure the activity of the isotope generator as a function of time immediately after elution.
  2. To measure the activity of a freshly eluted solution of Ba-137 m as a function of time.

What you can learn about

  • Parent substance
  • Daughter substance
  • Rate of decay
  • Disintegration or decay constant
  • Counting rate
  • Half life
  • Disintegration product
Document     Filesize
p2520102e.pdf Experiment guide, English 419.29 KB

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