Physics

Problem

A technetium-99m dose must have an activity of

5.0\,\text{MBq}

at the moment of a scan that will take place exactly

6\,\text{h}

after it is prepared. The half-life of

^{99\mathrm{m}}\text{Tc}

6.0\,\text{h}

. Calculate the minimum activity that should be prepared.