Purchase Solution

Decay of Radioactive Cobalt Sample

Not what you're looking for?

Ask Custom Question

Cobalt 60 has a half life of 5.26 year. The Cobolt 60 in a certain radiation therapy unit must be replaced whenever its radioactivity falls to 80 percent of the original sample. If the original sample was purchased in 11/2002 when will it be necessary to replace the Cobalt 60?

Purchase this Solution

Solution Summary

The decay of radioactive Cobalt samples are examined. The half life is examined.

Purchase this Solution

Free BrainMass Quizzes
Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

The Moon

Test your knowledge of moon phases and movement.

Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.