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Latest Gamma ray Stories

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2009-05-04 11:05:00

Since its launch last June, NASA's Fermi Gamma-ray Space Telescope has discovered a new class of pulsars, probed gamma-ray bursts and watched flaring jets in galaxies billions of light-years away. Today at the American Physical Society meeting in Denver, Colo., Fermi scientists revealed new details about high-energy particles implicated in a nearby cosmic mystery. "Fermi's Large Area Telescope is a state-of-the-art gamma-ray detector, but it's also a terrific tool for investigating the...

2009-04-28 18:40:00

SAN DIEGO, April 28 /PRNewswire/ -- Today, InteliBiz announced the completion and delivery of computer software that converts data from gamma ray detectors into visual spectrums useful for identifying and measuring radioactive substances. The process is based on Gamma Spectroscopy, "Which is not a new technology," said Bill Edmett, CEO of InteliBiz, "but this software is an economical approach, which provides a relatively quick and inexpensive means of reporting on the presence of...

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2009-04-24 13:35:00

The largest-ever gamma-ray telescope is set to collect its "first light" at an opening ceremony on Saturday. Located on the island of Palma, the Major Atmospheric Gamma-ray Imaging Cerenkov Magic II will replace its predecessor, the Magic telescope. When it was built, the first Magic telescope was the largest gamma-ray telescope in the world, until 2003, when the four-telescope High-energy Stereoscopic System (Hess) was unveiled. Now, Magic's successor will reclaim the title once more, but...

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2008-11-19 13:45:00

An international team of researchers has discovered a puzzling surplus of high-energy electrons bombarding Earth from space. The source of these cosmic rays is unknown, but it must be close to the solar system and it could be made of dark matter. Their results are being reported in the Nov. 20th issue of the journal Nature. "This is a big discovery," says co-author John Wefel of Louisiana State University. "It's the first time we've seen a discrete source of accelerated cosmic rays standing...

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2008-11-02 10:10:00

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 material mixed with conventional explosives in "Ëœdirty bombs'. ESA has supported the development of technology for gamma-ray astronomy for more than 40 years. Integral, ESA's International Gamma-Ray Astrophysics Laboratory launched in 2002, is now detecting some of the...

2008-08-07 21:00:20

By JASON SILVERSTEIN Beck's "Modern Guilt" is a political album in the broadest sense of the term. It doesn't reference anything specific from recent headlines, name-drop any political figures or feature any kind of rally cry that will become especially relevant come election time. But it does have one prevalent theme that runs through all its songs: today's society is very, very messed up. The album kicks off with "Orphans," an ominous track that finishes by greeting the eventual...

2008-07-09 12:00:29

By Greg Kot, Chicago Tribune Jul. 9--Beck's "Modern Guilt" (DGC), out this week, pairs the California pop gadfly with the producer of the moment, Danger Mouse. It would seem to be an ideal pairing, but its promise isn't fully realized. The collaboration sounds like it was dashed off between appointments on Danger Mouse's increasingly stocked calendar, which in recent years has included production work for Gnarls Barkley, Gorillaz and the Black Keys. The 10 tracks on "Modern Guilt" span a...

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2008-06-11 13:00:00

Today, NASA's Gamma-ray Large Area Space Telescope (GLAST for short) left Earth onboard a Delta II rocket. "The entire GLAST Team is elated," reported program manager Kevin Grady of NASA's Goddard Space Flight Center shortly after the rocket's liftoff from Cape Canaveral. "The observatory is now on-orbit and all systems continue to operate as planned." What is NASA's newest space telescope going to accomplish? GLAST will explore the most extreme environments in the universe, searching for...

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2008-05-29 13:15:55

When NASA launches its newest space observatory, physicists at the University of California, Santa Cruz, will be watching as the product of nearly 16 years of hard work blasts into orbit. The UCSC team led an international effort to design a massive detector system for the Gamma-ray Large Area Space Telescope (GLAST), scheduled for launch from Cape Canaveral on June 3. GLAST will explore the universe's most extreme environments, searching for answers to long-standing questions about dark...

2008-05-01 12:34:05

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 help us comprehend the origin and distribution of dark matter, write three scientists currently preparing for the GLAST mission from NASA's Goddard Space Flight Centre in Greenbelt, Maryland, USA, in this month's Physics World. The Gamma-Ray Large Area Space Telescope...


Latest Gamma ray Reference Libraries

7_7ab115b117284658644e345b89f5ba712
2004-10-19 04:45:43

Gamma-Ray Astronomy -- Gamma-ray astronomy is the astronomical study of gamma rays. Long before experiments could detect gamma rays emitted by cosmic sources, scientists had known that the universe should be producing these photons. Work by Feenberg and Primakoff in 1948, Hayakawa and Hutchinson in 1952, and, especially, Morrison in 1958 had led scientists to believe that a number of different processes which were occurring in the universe would result in gamma-ray emission. These...

6_f3739d4b04b11a1c267bfcc286610ef92
2004-10-19 04:45:41

Hypernova -- A hypernova is a theoretical type of supernova produced when exceptionally large stars collapse at the end of their lifespan. In a hypernova, the core of the star collapses directly into a black hole and two extremely energetic jets of plasma are emitted from its rotational poles at nearly light speed. These jets emit intense gamma rays, and are a candidate explanation for gamma ray bursts. Theorists have come up with several plausible explanations for hypernovae. It may...

6_c9b95f985acbe749f13bf6301a3180a85
2004-10-19 04:45:41

Electromagnetic Spectrum -- The electromagnetic spectrum describes the various types of electromagnetic radiation based on their wavelengths. Radio, representing wavelengths from a few feet to well over a mile, is at one end of the spectrum. Gamma ray radiation is at the other end: the wavelength of the harder types is so short, in the subatomic range, that we do not have instruments capable of directly measuring it. While the above classification scheme is generally accurate, in...

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