Cosmic rays below 100 MeV are key to the origin of life and the evolution of stars, and they activate interstellar matter to emit spectral emission lines of X-rays and gamma rays specific to the ...

Broser and Kallmann 1 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 ...

The UMass Lowell Radiation Laboratory is a unique facility which houses a 5.5-MV Van de Graaff accelerator, a 1-MW research reactor and a ~100-kilocurie Co-60 gamma-ray source within a single complex.

"The gamma-ray burst traveled through intergalactic space at the speed of light for eleven billion years, during which time the Sun and the planets were born." — Timothy Ferris, in the film ...

If you would like to learn more about the IAEA’s work, sign up for our weekly updates containing our most important news, multimedia and more. Gamma irradiation of food is a simple, reliable, and ...