Latest X-ray Stories
Lee Rannals for redOrbit.com - Your Universe Online While some find it as the source of inspiration for wrapping gifts, Scotch tape inspired one scientist at NASA to build a special X-ray mirror. NASA scientist Maxim Markevitch and a team of X-ray optics experts at the space agency's Goddard Space Flight Center are looking into the feasibility of creating a low-cost mirror out of plastic tape. "I remember looking at a roll of Scotch tape and thinking, 'was it possible to use the same...
MOUNTAIN VIEW, Calif., July 26, 2012 /PRNewswire/ -- The continuous evolution of X-ray sources, detectors and software has led to a migration from analog to digital X-ray inspection systems in the nondestructive testing (NDT) industry. Digital X-rays' lower operating costs have given them a significant competitive advantage over film radiography solutions, as they eliminate the expenses involved in buying films, maintaining a darkroom, obtaining space for archiving film records,...
PALO ALTO, Calif., July 25, 2012 /PRNewswire/ -- Varian Medical Systems (NYSE: VAR) is today reporting net earnings of $0.96 per diluted share in the third quarter of fiscal year 2012, up 16 percent from $0.83 in the year-ago quarter. Revenues for the quarter were $705 million, up 9 percent from the year-ago quarter. "All of our major businesses contributed to solid growth in earnings and revenues," said Tim Guertin, president and CEO of Varian Medical Systems. "Gross margins...
redOrbit Staff & Wire Reports - Your Universe Online Most volcanoes are situated where continental plates shift against each other. This is where the continental crust is weakened, allowing magma to break through to the surface. The Pacific "Ring of Fire" exhibits this kind of plate movement, resulting in powerful earthquakes and multiple active volcanoes. Volcanic hotspots, however, are of a completely different nature because most of them are far away from plate boundaries. The...
Most electric cars, from the Tesla Model S to the Nissan Leaf, run on rechargeable lithium-ion batteries – a pricey technology that accounts for more than half of the vehicle's total cost. One promising alternative is the lithium-sulfur battery, which can theoretically store five times more energy at a much lower cost. But lithium-sulfur technology has a major drawback: After a few dozen cycles of charging and discharging, the battery stops working. "The cycle life of lithium-sulfur...
Vidisco to unveil important advances in the Digital Radiography field at the upcoming Digital Imaging Conference (PRWEB) July 12, 2012 Mr. Lior Pick, Vidisco’s Executive VP, will speak at the upcoming 15th Digital Imaging (DI) Conference about a newly developed automatic software process that enables easy and accurate Wall Thickness Measurement using Digital Radiography. The new algorithm overcomes several inherent technological challenges and obstacles, and offers a user-friendly...
Observations with CSIRO's Australia Telescope Compact Array have confirmed that astronomers have found the first known "middleweight" black hole. Outbursts of super-hot gas observed with a CSIRO radio telescope have clinched the identity of the first known "middleweight" black hole, Science Express reports online today. Called HLX-1 ("hyper-luminous X-ray source 1"), the black hole lies in a galaxy called ESO 243-49, about 300 million light-years away. Before it was found,...
Lee Rannals for redOrbit.com - Your Universe Online Astronomers have spotted the first known "middleweight" black hole, according to a publication in Science Express. The black hole was found with a CSIRO radio telescope in a galaxy called ESO 243-49, which is about 300 million light-years away. Before the black hole was found, astronomers had only known of supermassive black holes and "stellar mass" ones. "This is the first object that we're really sure is an intermediate-mass...
Advances spectroscopy research: HZB scientists come up with new method for examining the structure of metal ions-complexes in solution HZB scientists have apply a new method – 'inverse Partial Fluorescence Yield' (iPFY) on micro-jet – which will enable them to probe the electronic structure of liquids free of sample damages. The experiments are performed in vacuum conditions at the LiXEdrom experimental chamber, where a fluid stream of micrometer diameter is moving freely through...
Based on research conducted recently from the American Academy of Cosmetic Dentistry (AACD), ninety nine percent of all US residents believe a smile is a crucial social asset. Contact Dr. Kanani's Dental Health Spa in Los Angeles at (818)962-1141 And ask about their $26.99 X-ray and exam and how to get your first regular cleaning complimentary. Los Angeles, CA (PRWEB) July 04, 2012 Based on research conducted recently from the American Academy of Cosmetic Dentistry (AACD), ninety nine...
Latest X-ray Reference Libraries
Abell 2142, also called A2142 and located in the constellation Corona Borealis, is an X-ray luminous galaxy cluster. Its creation is due to the merger between two galaxy clusters. It is one of the largest objects in the universe and is six million light years across. It holds hundreds of galaxies and enough gas to make a thousand more. The pressure fronts in the system have been traced in detail and are relatively cool 50 million degree Celsius. The central region is embedded in large...
X-Ray Astronomy -- Although the more energetic X-rays (E > 30 keV) can penetrate the air at least for distances of a few meters (they would never have been detected and medical X-ray machines would not work if this was not the case) the Earth's atmosphere is thick enough that virtually none are able to penetrate from outer space all the way to the Earth's surface. X-rays in the 0.5 - 5 keV range, where most celestial sources give off the bulk of their energy, can be stopped by a few...
X-ray Burster -- X-ray bursters are a class of binary stars which are luminous in X-rays. They contain a neutron star and a low-mass companion star. The companion fills its Roche lobe and therefore the neutron star is accreting matter from it. The inflowing gas forms an accretion disk around the neutron star. Sometimes X-ray bursters show a sudden increase in their X-ray luminosity, called X-ray burst. All properties of the X-ray bursts can be explained assuming that they result from...
X-ray Binaries -- X-ray binaries are a class of binary stars that are very luminous in X-rays. The X-rays are produced by matter falling from one component (usually a relatively normal star) to the other component, which is a neutron star or a black hole. The infalling matter releases gravitational potential energy, up to several tens of per cent of its rest mass as X-rays. (Hydrogen fusion releases about 0.7 per cent of rest mass) X-ray binaries are further subdivided into...
Variable Star -- Most stars are of nearly constant luminosity. Our own Sun is a good example which goes through practically no measurable variation in brightness. There are, however, stars which do vary in brightness, called variable stars. They fall into two main groups: Intrinsic variables These are stars which have intrinsic variations in brightness, that is the star itself gets brighter and dimmer. There are many types of intrinsic variables, the main types being: --...
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![Taken Under the \"Wing\" of the Small Magellanic Cloud](/media/gallery/hubble-space-telescope/thumbs/thumbs_hs-2013-17-a-xlarge_web.jpg "Taken Under the \\"Wing\\" of the Small Magellanic Cloud")
![Curiosity \](/media/gallery/mars-science-laboratory/thumbs/thumbs_733481main_blake-2pia16830-43_946-710.jpg "Curiosity \")
