When you think of a radiation detector, you’re probably thinking of a Geiger tube and its high voltage circuitry. That isn’t the only way to measure gamma radiation, though, and [Alan] has a ...

Lesser pathways are sweat and faeces (particularly when a capsule is used). Breast milk can contain ... but will not shield from the I-131 gamma radiation. In most cases, this is the most important ...

The round silver pellet contains the radioactive isotope Cesium-137, and puts out harmful quantities of both gamma and beta ... their search. The radiation output by the capsule can be detected ...

and they emit most of their energy as gamma rays. View a video of gamma ray bursts from Seeing in the Dark Gamma rays belong to the same family as light, x-rays, and the radio waves that travel ...

Jamie Carter is an award-winning reporter who covers the night sky. A massive burst of gamma rays produced by the explosion of a star almost two billion light-years away was so powerful that it ...