Iodine-131 is an artificially produced fission by-product resulting from nuclear weapons, above-ground nuclear testing, and nuclear reactor operations. Iodine-131 is found in the gaseous and liquid waste streams of nuclear power plants, but is not released to the environment during normal reactor operations.
What is the product of iodine-131 decay?
Iodine-131 has a half-life of 8.06 days and decays by beta-particle emission to a stable 131Xe.
What are side effects of radioactive iodine therapy I-131?
What are the side effects of radioactive iodine?
- Neck tenderness and swelling.
- Nausea.
- Swollen salivary glands.
- Loss of taste or taste change.
- Dry mouth/insufficient salivary production.
- Dry eyes.
- Excessive tearing from the eyes.
How does uranium 235 produce iodine-131?
Iodine-131, the most commonly used radioiodine isotope in the treatment of thyroid diseases, is a reactor-produced radionuclide which is commercially available in large quantities. Two main routes for its production are fission of the Uranium-235 isotope and so-called (n, γ) reaction.
Who invented iodine-131?
Glenn Seaborg
However, the controversies summarized by Mazzaferri in 2004 regarding the best treatment still continue [2]. The use of iodine-131 (131I), discovered in 1938 by Glenn Seaborg and John Livingood at the University of California, Berkeley, has been the success story in nuclear medicine.
How does iodine-131 work?
Radioactive iodine (I-131), an isotope of iodine that emits radiation, is used for medical purposes. When a small dose of I-131 is swallowed, it is absorbed into the bloodstream in the gastrointestinal (GI) tract. It is concentrated from the blood by the thyroid gland, where it begins destroying the gland’s cells.
How is iodine 125 produced?
The 125-Iodine is produced in a nuclear reactor, from 124-Xenone. It decays by electronic capture and internal conversion to 125-Telurium. In this process, it emits photons of 27 keV, 31 keV and 35 keV, with an average energy of 29 keV. Due to its low average energy of emission, its photons have a short penetration.
Why iodine 131 undergoes a decay process?
Iodine-131 undergoes radioactive decay because the mass of its nucleus, the combination of its protons and neutrons, creates an excess of energy that…
Who created iodine?
Barnard Courtois
Iodine was first discovered by Barnard Courtois, a French chemist in 1811 while extracting potassium and sodium from seaweed ash. When he accidentally added sulfuric acid, a violet colored cloud evolved from the mass. The resulting gas was condensed into dark crystals-the first occurrence of observed solid iodine.
What is the history of iodine 131?
Iodine-131 (131I, I-131) is an important radioisotope of iodine discovered by Glenn Seaborg and John Livingood in 1938 at the University of California, Berkeley. It has a radioactive decay half-life of about eight days.
What type of decay does iodine 131 have?
Iodine-131 ( 131I) is the most commonly used iodine radioisotope, and it decays mostly by beta-emission (606 keV; 90%). It is well-known for causing death of cells because it can penetrate other cells up to several millimeters away.
What are the side effects of iodine-131?
Iodine-131 also emits high energy gamma radiation (364 keV; 10%) that can be used for imaging [ 18 E]. Adverse reactions with the use of 131 I include myelotoxicity, swelling and tenderness of salivary glands, nausea, vomiting, dry mouth, and hypothyroidism [ 19 c]. View chapter Purchase book
What is radioiodine (I-131) therapy and how is it used?
What is Radioiodine (I -131) Therapy and how is it used? Radioactive Iodine I-131 (also called Radioiodine I-131) therapy is a treatment for an overactive thyroid, a condition called hyperthyroidism.
Can radioactive iodine (iodine-131) alone worsen thyrotoxicosis?
Radioactive iodine (iodine-131) alone can potentially worsen thyrotoxicosis in the first few days after treatment. One side effect of treatment is an initial period of a few days of increased hyperthyroid symptoms. This occurs because when the radioactive iodine destroys the thyroid cells, they can release thyroid hormone into the blood stream.
