1. (a) Write an equation linking absorbed dose, energy and mass.
(b) State the unit used to measure absorbed dose.
2. Calculate the missing values in the table below.

3. A mass of 0.4 kg absorbs 500 μJ of energy. Calculate the absorbed dose.
4. A patient is undergoing radiotherapy treatment. The tumour they suffer from has a mass of 0.03 kg and it absorbs 0.5 J of energy. Calculate the absorbed dose?
5. (a) State the formula which relates absorbed dose with equivalent dose.
(b) State the unit used to measure equivalent dose.
6. (a) The following table gives the weighting factor for certain types of radiation.

Why do different types of radiation have a different weighting factor.
(b) Suggest a reason why alpha radiation has the highest weighting factor.