- WHAT IS RADIOTHERAPY? - (http://www.cancernet.co.uk/rxt-what.htm)
- About Cancer - (http://www.cancerhelp.org.uk/help/ default.asp?page=166)
Background
There are over 10,000,000,000,000 cells in your body. Each one has a nucleus with the same set of 46
Cancer is a disease that originates in our own cells. A change in the
Cancer can start anywhere in the body and there is a danger that, if not treated early enough, they can spread to form secondary tumors. High-energy gamma radiation is aimed at the growing
Ionizing radiation can damage chromosomes and cause mutations that may trigger a tumor to develop. Different types of radiations that are used in radiotherapy are gamma, beta and X-rays. Beta radiations are weakly ionizing. Gamma radiation is only really hazardous if it is very intense and this happens after a nuclear explosion.