In English, there are no inflectional prefixes. Prefixes, like all other affixes, are bound morphemes. The word prefix is itself made up of the stem fix (meaning attach, in this case), and the prefix pre- (meaning before), both of which are derived from Latin roots. prefix is an affix which is placed before the stem of a word. Adding it to the beginning of one word changes it into another word. For example, when the prefix un-is added to the word happy, it creates the word unhappy.
Gamma rays are the most dangerous. Externally, gamma radiation is dangerous because it can penetrate the body. Alpha is most dangerous if ingested. gamma if you're counting external damage, and alpha if you're counting internal. The type of radiation with the most penetrating capabilities is  gamma radiation. It is a form of ionizing radiation .
The reading on the detector increases when above a leak as the radiation can escape through the hole in the pipe more easily and also there will be an accumulation of the radioactive fluid in the ground around the leak. Radioisotopes used to find leaks are ones that emit gamma radiation with a short half-life.Gamma rays can easily penetrate pipes (even if they are underground) and reach the detector. Both alpha and beta particles would not pass through pipes, so could not be used.lthough ionising radiation can cause cancer, high doses of gamma (or X-ray) radiation can target and kill cancerous cells. This is called radiotherapy. About 40% of people with cancer undergo radiotherapy as part of their treatment.