1, Portion of gamma-ray spectrum as measured by Fleischmann etal.

2, However, particularly for the gamma-ray contribution, more direct measurement of the radiation dose is usually employed.

3, High energy gamma-rays are important probes of the Universe.

4, What if you could "see" in gamma-rays?

5, He believes that this process supplies the gamma-rays observed by Fermi.

6, Explanation: Scanning the entire sky in gamma-rays, photons with over 50 million times the energy of visible light,(http:///gamma-rays.html) the Fermi mission's Large Area Telescope (LAT) explores the high-energy universe.

7, Scanning the entire sky in gamma-rays, photons with over 50 million times the energy of visible light, the Fermi mission's Large Area Telescope (LAT) explores the high-energy universe.

8, Until quite recently, scientists believed that most gamma-rays are produced by cataclysmic events in distant galaxies, such as the death of supermassive stars.

9, Seeing gamma-rays from this kind of stellar outburst was unexpected - this is the kind of surprise that we love to find.

10, In this case, the telltale signal is gamma-rays at energies of 511,000 electron volts -- evidence that an electron/positron pair has annihilated.

11, Twenty years after the discovery, they were undetected at any wavelengths other than gamma-rays, which provided poor directional information and hence no direct clues on where they originated.

12, In December 2009 it flared up again, becoming the brightest persistent source ever seen in high energy gamma-rays (gamma-ray bursts are momentarily brighter, but they are over in a few minutes).

13, The results showed that the presence of the polysaccharide enhanced significantly both UV damaged DNA incision activity and UDS in the root-tip cells of Vicia faba irradiated with gamma-rays.

14, These annihilations are thought to occur when two WIMPs collide, generating gamma-rays which can be picked up by detectors such as those on board Fermi.

15, Team members have been gauging rock composition by measuring the x-rays and gamma-rays emitted by a surface bombarded by the sun's x-rays and by cosmic rays.

16, The researchers were able to pin down the radiation's origination point by combining measurements of the gamma-rays with radio-wave observations.

17, This morning we noticed that one of the many active galaxies in the Fermi sky had become extremely bright in gamma-rays.

18, Explanation: A symphony of planet-wide observations began abruptly on March 28 when the Earth-orbiting Swift satellite detected a burst of high-frequency gamma-rays from GRB 110328A.

19, This computer processed image shows the Crab Nebula pulsar (below and right of center) and the Geminga pulsar (above and left of center) in the "light" of gamma-rays.

20, A nuclear detonation creates a severe environment including blast, thermal pulse, neutrons, x- and gamma-rays, radiation, electromagnetic pulse (EMP), and ionization of the upper atmosphere.