High-energy gamma-ray photons are relatively scarce, and it takes many photons to create a meaningful image of an object in space. For this reason, there are not many images of astronomical ...

Previous research also indicated that Earth looks down the axis of this system, known as Wolf-Rayet 104, raising concerns ...

"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 ...

Research Physicist, holds a crystal detector unit that is part of StarBurst in Washington, D.C., February 18, 2025. StarBurst was fabricated and designed at the U.S. NRL and is a SmallSat instrument ...

The U.S. Naval Research Laboratory (NRL), in partnership with NASA’s Marshall Space Flight Center (MSFC), has developed ...

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 ...

This site presents the energy and photon intensity of gamma rays as seen in thermal-neutron capture in two tables, one in ascending order of gamma energy and a second organized by Z, A of the target.

Normally when people think of gamma rays -- bursts of an incredibly high-energy form of light -- they are coming from out of this world, such as solar flares, exploding stars or black holes ...

"This field did not exist before 1989 when the first gamma ray source was detected. At that point, we knew of four sources in the world," said Dave Kieda, professor in the Department of Physics ...

I have therefore tried to determine the pulse-height corresponding to those photo-electrons which are created at the absorption of the gamma-rays in the phosphor.