Final Post

Ok, here we go, final post:

My type of electromagnetic wave: Gamma rays
Range of frequencies for Gamma rays: > 10^19 Hz.
Range of wavelengths for Gamma rays: < 10^(-11) m

Application of Gamma Rays: Cancer treatment (radiation therapy)

How are Gamma Rays used to treat cancer: Gamma rays are created by colliding fast-moving electrons into a metal plate using a linear accelerator (also called a LinAc for short). The Gamma rays are then directed towards the cancer in the patient. The Gamma rays damage the DNA of the cancer cells, which can cause the cells to die.

Features of Gamma Rays that make them useful for cancer treatment: In order to do damage to DNA, radiation must be ionising. Ionising radiation is radiation that has a lot of energy in its photons. Since Gamma Rays have the most energy of any electromagnetic radiation, they are therefore highly ionising. X-rays and Gamma rays are the only types of radiation used for cancer treatment because they are the ionising ones.
So the feature of Gamma rays that make them useful for cancer treatment is their high energy in their photons.

That's it!