Radioisotopes used for dating

To evaluate thyroid activity, a measured dose of I is administered to a patient, and the next day a scanner is used to measure the amount of radioactivity in the thyroid gland.The amount of radioactive iodine that collects there is directly related to the activity of the thyroid, allowing trained physicians to diagnose both hyperthyroidism and hypothyroidism.Many people still cling to a different notion, despite the scientific evidence.The radiation emitted by some radioactive substances can be used to kill microorganisms on a variety of foodstuffs, extending the shelf life of these products.Produce such as tomatoes, mushrooms, sprouts, and berries are irradiated with the emissions from cobalt-60 or cesium-137.This exposure kills a lot of the bacteria that cause spoilage, so the produce stays fresh longer.A is a substance that can be used to follow the pathway of that substance through some structure.For instance, leaks in underground water pipes can be discovered by running some tritium-containing water through the pipes and then using a Geiger counter to locate any radioactive tritium subsequently present in the ground around the pipes.

Technetium-99 can also be used to test thyroid function.A tiny amount of carbon-14 is produced naturally in the upper reaches of the atmosphere, and living things incorporate some of it into their tissues, building up to a constant, albeit very low, level.Once a living thing dies, it no longer acquires carbon-14; as time passes the carbon-14 that was in the tissues decays.Chemotherapy is also a way in which radioisotopes are used in medicine.Radioisotopes emit radiations and although most of the time radiation is bad for your body cause it can encourage mutation and damage body cells but sometimes if used in controlled condition they can kill cancerous cells which is good Radioisotopes emit radiation, which can be used for a number of therapeutic purposes, mostly in the radiotherapy treatment of cancer.

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