Cesium-137, also known as Cs-137, was first released into the atmosphere during Oppenheimer’s Trinity test on July 16, 1945, which marked the detonation of the first atomic bomb.

In particular, cesium-137, a radioactive isotope used for blood irradiation, medical device sterilization, and research, poses major risks because of its widespread use, its presence in low ...

To security experts, the scary thing about cesium 137, commonly produced as a powdery cesium chloride compound, is that a terrorist could fill his pockets with it and sprinkle it in a subway car ...

Material federal officials fear could be used in a 'dirty bomb' was found in Texas. ... The source was Cesium-137, a material used in commercial and industrial settings.

Russia's FSB security service said on Friday it had detained five people who were trying to buy 1 kg of radioactive Cesium-137 for $3.5 million on behalf of a citizen of Ukraine, the TASS news ...

Houston Police officers identified Cesium-137, used in industrial devices and to make "dirty bombs," with detectors from the U.S. Department of Homeland Security. Elizabeth Conley/Staff Photographer ...

But in Chernobyl, some elements with a longer half-life, such as Strontium-90 and Cesium-137, still exist at elevated levels. 7. Only about 15% of the energy released by a nuclear bomb comes from ...

The results of the experiments described here, however, seem to indicate that cæsium-137 can follow an alternative route from fall-out to man that under certain conditions could well be ...

In 1996, rebels from Chechnya planted a bomb containing dynamite and radioactive caesium-137 in Moscow's Izmailovo Park. Security services discovered its location and it was defused.

Cold War-era nuclear weapons tests caused a 1,000-times higher cesium-137 concentration in the Kuroshio Current than wastewater leakage from Japan’s Fukushima Dai-ichi nuclear power plant following a ...

137Cs, or cesium-137, is a radioactive isotope of cesium produced during nuclear fission, ... meaning that the bomb was detonated above the ground and within the atmosphere.