Latest X-ray Stories
GLENWOOD, Ill., Nov. 15, 2012 /PRNewswire/ -- Landauer Medical Physics (LMP), a division of Landauer, Inc. (NYSE: LDR) and the leading independent provider of medical physics solutions, announced a partnership with Neusoft Medical Systems, USA, developer and manufacturer of advanced diagnostic imaging equipment including computed tomography systems. This partnership will allow Landauer Medical Physics to offer a turnkey program for Neusoft clients in the US to efficiently provide...
SALT LAKE CITY, Nov. 13, 2012 /PRNewswire/ -- Booth A78 - Varian Medical Systems (NYSE: VAR) will exhibit flat panel detectors and X-ray tubes optimized for digital radiography at MEDICA in Dusseldorf, Germany from Nov 14 - 17. In addition the company will also demonstrate i5DR hardware and software for processing diagnostic X-ray images. The digital X-ray imaging products to be highlighted are: PaxScan(®) 4336X - featuring Varian's proprietary, state-of-the-art 6(th)...
Brett Smith for redOrbit.com - Your Universe Online An international team of researchers has created ionized xenon atoms so positively charged that scientists involved in the study are now saying the existing theories need to be reexamined. Using the world’s most powerful laser, the Linac Coherent Light Source (LCLS) at the U.S. Department of Energy's (DOE) SLAC National Accelerator Laboratory at Stanford University, the physicists were able to kick out up to 36 electrons from a xenon...
Lawrence LeBlond for redOrbit.com - Your Universe Online NASA has released a new image of the Cygnus OB2 star cluster, detailing its structure and evolution. The Milky Way, as well as other galaxies in the universe, are home to numerous young star clusters with hundreds of thousands of hot, massive, young stars known as O and B stars. Cygnus OB2 is one of these clusters that contains no less than 60 O-type stars and upwards of a thousand B-type stars. Using the Chandra X-Ray...
BOSTON, Oct. 31, 2012 /PRNewswire/ -- Varian Medical Systems (NYSE: VAR) highlighted the company's technologies for the non-invasive treatment of lung cancer at the 54(th) annual meeting of the American Society for Radiation Oncology (ASTRO) in Boston this week. Many of Varian's cancer treatment systems can be utilized for attacking lung tumors--which often move during treatment--very precisely, with carefully-shaped, high dose X-ray beams. "Our latest treatment systems have...
PALO ALTO, Calif., Oct. 25, 2012 /PRNewswire/ -- Varian Medical Systems (NYSE: VAR) today is reporting net earnings from continuing operations of $1.08 per diluted share in the fourth quarter of fiscal year 2012, up 14 percent from $0.95 in the year-ago quarter. Net earnings per diluted share from continuing operations for fiscal year 2012 climbed to $3.76, up 9 percent from $3.44 in fiscal year 2011. Varian's company-wide revenues totaled $756 million for the fourth quarter of...
April Flowers for redOrbit.com - Your Universe Online NASA's Chandra X-ray Observatory, along with other observatories, has identified one of the lowest mass supermassive black holes ever observed in the middle of a galaxy that one would not expect to harbor this type of beast. This suggests that this black hole, while related to its supermassive cousins, may have a different origin. Located in the middle of the spiral galaxy NGC 4178, the black hole is shown in the image from the Sloan...
Lee Rannals for redOrbit.com – Your Universe Online NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) has spotted its first flare from Milky Way's black hole. The new telescope, launched June 13, is the only telescope capable of producing focused images of the highest-energy X-rays, and NASA said it has caught its first look at the black hole. "We got lucky to have captured an outburst from the black hole during our observing campaign," Fiona Harrison, the mission's principal...
[ Watch the Video: Video of 3-D CT Scan Using EST ] Connie K. Ho for redOrbit.com – Your Universe Online Researchers recently revealed that they have created a new way to process three-dimensional X-ray images, resulting in breast cancer scans that could have 25 times less radiation than two dimensional radiographies currently used in clinics. With the development of this new technology, scientists believe that it will help combat the issue of high radiosensitivity of breast...
Like cleaning the lenses of a foggy pair of glasses, scientists are now able to use a technique developed by UCLA researchers and their European colleagues to produce three-dimensional images of breast tissue that are two to three times sharper than those made using current CT scanners at hospitals. The technique also uses a lower dose of X-ray radiation than a mammogram. These higher-quality images could allow breast tumors to be detected earlier and with much greater accuracy. One in...
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 \")
