Gamma rays can only be detected by sensors made of dense metals and takes over six feet (1.8 meters) of concrete to block.

Keywords Wilhelm Röntgen, X-rays, cathode rays, fluorescence, Henri Becquerel, uranium, radioactivity, Marie Curie, polonium, radium, Ernest Rutherford, alpha rays, beta rays, gamma rays ...

After emitting an alpha or beta particle, the nucleus will often still be ‘excited’ and will need to lose energy. It does this by emitting a high energy electromagnetic wave called a gamma ray.

Broser and Kallmann1 have shown that mono-energetic alpha-particles give pulses of the same height in a scintillation counter, and that the pulse-height is proportional to the energy of the alpha ...

Gamma-rays are the highest energy (the shortest wavelength) type of electromagnetic radiation. They are classified as a type of an ionising radiation; with respect to alpha and beta particles they ...

Gamma rays, which have various applications, such as cancer treatment, are electromagnetic radiation, similar to X-rays. Some gamma rays pass right through the human body without causing harm, while ...