Question 1:
Question A: Define the term Radiopharmaceutical.
Question B: Describe the production of two different radioisotopes for medical imaging purposes.
Question C: State and explain the key biological and radiological properties of radioisotopes used in medical imaging by comparing the two isotopes that you described in question B
Question 2:
Question A : Describe the process of process of producing a gamma camera image including the preparation of the patient and how the gamma camera works. You will need to include a fully labelled diagram of the gamma camera and refer to it in your answer.
Question B : Give an example of a typical imaging process for a particular condition and state what radioisotope would be used.
Question 3: Explain the advantages in the use of radiopharmaceuticals for treatment as opposed to irradiation using external sources of radiation.
Question 4: Describe the effects of alpha, beta and gamma radiation on living cells.
Question 5: Distinguish between the effects that radiation can have on an adult and those which can result as a consequence of a foetus being exposed to a significant dose of radiation.
Question 6:
Question A: calculate the absorbed dose of radiation for tissue that suffers a mean energy absorbed of 420 joules in a quantity of tissue that has a mass of 60 grams.
Question B: Calculate the exposure of a section of bone in a case where the absorbed dose is 260 J/kg using a value of "f" value for bone of 160.
Question C: What is the effective dose for an external source in a case where the absorbed dose is 760 J/Kg and the radiation is in the form of beta particles assuming a RBE value of 1.8