Question 1

Question A: Define the term Radiopharmaceutical (20 words)

Question B: Describe the production of two different radioisotopes for medical imaging purposes (200 words)

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 (200 words)

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 (250 words)

Question B : Give an example of a typical imaging process for a particular condition and state what radioisotope would be used. (150 words)

Question 3

Explain the advantages in the use of radiopharmaceuticals for treatment as opposed to irradiation using external sources of radiation. (250 words)

Question 4

Describe the effects of alpha, beta and gamma radiation on living cells. (180 words)

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. (180 words)

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. (No word account)

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. (No word account)

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 ( No word account)