iodine-131


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to iodine-131: thallium-201

iodine-131

[′ī·ə‚dīn ¦wən¦thərd·ē′wən]
(nuclear physics)
A radioactive, artificial isotope of iodine, mass number 131; its half-life is 8 days with beta and gamma radiation; used in medical and industrial radioactive tracer work; moderately radiotoxic.
References in periodicals archive ?
Effects of iodine-131 ([sup.131]I) on cell proliferation (A), cell apoptosis (B) by regulating apoptosis-related protein, and cell cycle arrest (C) by modulating cell cycle-related protein.
Measures of thyroid function among Belarusian children and adolescents exposed to iodine-131 from the accident at the Chernobyl nuclear plant.
Radioactive iodine-131 ([.sup.131.I]) is widely used for the treatment of thyroid-related diseases.
Iodine-131 decays into a stable atom of xenon with primary beta radiation of 606 keV and primary gamma radiation of 364 keV.
During the Green Run, Air Force planes measured the deposits of iodine-131 on ground vegetation within a 200- by 40-mile plume that stretched from The Dalles to Spokane.
The thyroid's powerful ability to concentrate iodine is what causes trouble when you come into contact with radioactive iodine-131. (14) That radioisotope is a powerful emitter of beta-radiation with a half-life of 8 days.
"The IAEA believes the current trace levels of iodine-131 that have been measured do not pose a public health risk and are not caused by the Fukushima Daiichi nuclear accident in Japan," dpa quoted the Vienna-based agency as saying.
It did not specify if the contamination was from iodine-131 or caesium-137, the official safety limits for which are 2,000 Bequerel per kilogramme and 500 Bequerel per kilogramme respectively.
And campaigners have demanded a probe by health chiefs on the eve of the 25th anniversary of the catastrophe Particles of highly radioactive iodine-131 - which can cause cancer as the body stores it in the thyroid gland in the neck - were scattered across Scotland by rain showers after the Soviet nuclear plant disaster.
The partial meltdown of Fukushima, in contrast, released only five isotopes measurable by the Seattle team: iodine-131, iodine-132, tellurium-132, cesium-134 and cesium-137.
According to South Korean News Agency Yonhap, Korea Institute of Nuclear Safety (KINS) reported Minuscule traces of iodine-131 were found in the seven areas including Seoul with traces of cesium-134 and cesium-137 was detected in four areas.
The Food Safety Authority of Ireland said tests carried out by the national radiological institute had discovered trace levels of iodine-131, a radioactive isotope, in three individual samples.