News tagged with gamma radiation
Herbal tonic for radiotherapy
Oct 19, 2009 |
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Antioxidant extracts of the leaves of the Gingko biloba tree may protect cells from radiation damage, according to a study published in the International Journal of Low Radiation. The discovery may one day be used to hel ...
Heart of a galaxy emits gamma rays
Oct 02, 2009 |
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(PhysOrg.com) -- Quite a few distant galaxies turn out to be cosmic delivery rooms. Large numbers of massive stars are born in the hearts of these starburst galaxies, and later explode as supernovae. In the ...
The MAGIC-II Telescope is ready to team up
Apr 15, 2009 |
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(PhysOrg.com) -- Together with the MAGIC-I telescope, MAGIC-2 allows stereoscopic observations using these two largest gamma-ray telescopes. Astronomers can explore sources of very-high energy gamma rays. ...
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Very High Energy Gamma Rays
Sep 25, 2009 |
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(PhysOrg.com) -- Gamma-rays are the most energetic known form of electromagnetic radiation, with each gamma ray being at least one hundred thousand times more energetic than an optical light photon. The most ...
Detecting dirty bomb material with ESA gamma-ray technology
Oct 30, 2008 |
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Thanks to ESA and UK technology transfer support, a British company has developed a device based on the gamma-ray detection equipment used in ESA’s Integral astronomy satellite to detect and identify the radioactive ...
Searching the heavens -- GLAST
Space & Earth / Space Exploration
May 01, 2008 |
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A new space mission, due to launch this month, is going to shed light on some of the most extreme astrophysical processes in nature - including pulsars, remnants of supernovae, and supermassive black holes. It could even ...
Dissecting a stellar explosion
Apr 03, 2009 |
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(PhysOrg.com) -- Integral has captured one of the brightest gamma-ray bursts ever seen. A meticulous analysis of the data has allowed astronomers to investigate the initial phases of this giant stellar explosion, ...
Gamma knife treatment for glioblastomas shows promising results
Nov 02, 2009 |
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Researchers from University Hospitals Case Medical Center report promising results from a cutting-edge research study that treated the aggressive brain tumors glioblastoma multiforme (GBM) using a novel type of imaging called ...
Astrophysicists explore a blazar
Mar 18, 2009 |
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An international team of astrophysicists using telescopes on the ground and in space have uncovered surprising changes in radiation emitted by an active galaxy. The picture that emerges from these first-ever ...
New experiment could reveal make-up of the Universe
Aug 06, 2009 |
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(PhysOrg.com) -- Scientists at the University of Liverpool are constructing highly sensitive detectors as part of an international project to understand the elements that make up the universe.
Fermi Large Area Telescope Reveals Pulsing Gamma-Ray Sources
Sep 22, 2009 |
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(PhysOrg.com) -- Scientists at the Naval Research Laboratory Space Science Division and a team of international researchers have positively identified cosmic sources of gamma-ray emissions through the discovery ...
Discovery makes brain tumor cells more responsive to radiation
Dec 02, 2009 |
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Duke University Medical Center researchers have figured out how stem cells in the malignant brain cancer glioma may be better able to resist radiation therapy. And using a drug to block a particular signaling pathway in these ...
Lightning-produced radiation a potential health concern for air travelers
Space & Earth / Earth Sciences
Dec 07, 2009 |
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New information about lightning-emitted X-rays, gamma rays and high-energy electrons during thunderstorms is prompting scientists to raise concerns about the potential for airline passengers and crews to be ...
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