But as well as causing cancer, they can be used to kill off cancer cells and even cure people from this illness. Utilizing radiation to combat cancer is an important career, earn your radiation therapy degree and help society.Gamma rays successfully kill microbes that cause food to decay.from overseas will incur an additional NZD35 charge. Current monetary exchange values can be estimated with the Universal Currency Converter.This is an inspection fee levied by the Ministry of Primary Industries (MPI - formarly MAF) on all samples coming into New Zealand. This means it is the radiation responsible for ionising molecules. Small doses of radiation over a long period of time can cause the cells to multiply. Background radiation comes from the soil, rocks, the air, water, plants, building materials and food.If this happens in our body, the cells may die or they may undergo a change called a mutation. Some radiation is due to cosmic rays from outer space.If radiation collides with molecules in the air or in your body, it throws out of them electrons.
Gamma rays are capable of passing deep inside the body and damage cells on their travels. The idea is to aim accurately at these cells with the correct strength.
Two main uses of carbon-14 are in diagnostic medical procedures and radiocarbon dating to determine the age of previously living animals and plants.
In medicine, carbon-14 can be injected to study abnormalities of metabolism that underlie diabetes, gout, anemia, and acromegaly (adult “gigantism”), and to trace the metabolism of new drugs.
A child mummy is found high in the Andes and the archaeologist says the child lived more than 2,000 years ago.
How do scientists know how old an object or human remains are?