What type of radiation does carbon dating use

10-Oct-2017 13:03

The energy source for this device was a rod of plutonium-238 weighing approximately 2.5 kilograms and providing a thermal power of approximately 1250W.

Plutonium-238 is a non-fissile isotope of plutonium that decays by alpha particle emission with essentially zero associated gamma emissions.

This is possible because some natural elements tend to concentrate in certain parts of the body: iodine in the thyroid, phosphorus in the bones, potassium in the muscles.

When a patient is injected with a radioactive element, a special camera can take pictures of the internal workings of the organ.

After the investigation the patient is still mildly radioactive and may need to avoid contact with pregnant women and young children for a couple of days to minimise any risk to them.

He/she will be told not to use public transport or to go to public places to avoid inadvertent contact with such individuals.

During a fire, it's necessary to make sure that emergency exit signs remain illuminated, even if the power goes out. Others have used tritium, a beta-emitting isotope of hydrogen, with a half-life of 12.3 years.

Vaseline Glass is a particular color of yellow-green glass that is made by adding 2% Uranium Dioxide to the ingredients when the glass formula is made.

Many camping lantern mantles used to contain thorium (alpha emitter with a long half-life see decay series). This practice has been stopped but old stock may still be around.

A strong radioactive source is used to deliver nuclear radiation to the affected part.

If this is from outside the body the patient doesn't become radioactive BUT if it is from an implanted source (like a radioactive wire inserted into the tumour) the patient does become radioactive and usually has to stay in hospital until the source is removed.

The diagram below shows the difference between alpha, beta and gamma particles.

The diagram below should make you think back to the cathode ray tube experiment - notice how the negatively charged beta particles are attracted to the ( ) plate while the positively charged alpha particle is attracted to the (-) plate.

The Apollo Moon missions used a radioisotope thermal generator (RTG).