Question

A patient is to be treated in the room shown in the figure.

(b) Assume the tumour to be treated has a β-coefficient that is very small such that it can be safely ignored (this actually turns out to be a reasonable assumption in certain types of tumours), and that the prescribed dose to cure it is 39 Gy. Tumour "cure" is defined in this case as the killing of 99.99% of the malignant cells. Compute α for this tumour (in Gy−1). Gy−1

Answer 1