News tagged with gamma radiation
Japan firm unveils radiation-gauging smartphone
Mobile phone operator Softbank on Tuesday unveiled a smartphone that can measure radiation as consumers in Japan clamour for reassurance following last year's Fukushima nuclear disaster.
Electronics / Consumer & Gadgets
May 29, 2012 |
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Astrophysics and extinctions: News about planet-threatening events
Space is a violent place. If a star explodes or black holes collide anywhere in our part of the Milky Way, they'd give off colossal blasts of lethal gamma-rays, X-rays and cosmic rays and it's perfectly reasonable to expect ...
Space & Earth / Space Exploration
Oct 07, 2011 |
4.4 / 5 (8) |
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Radiation boost for artificial joints
A blast of gamma radiation could toughen up plastic prosthetic joints to make them strong enough to last for years, according to researchers in China writing in the current issue of the International Journal of Biomedical En ...
Sep 22, 2011 |
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Blazars
(PhysOrg.com) -- A blazar is a galaxy which, like a quasar, has an intensely bright central nucleus containing a supermassive black hole. In a blazar, however, the emitted light sometimes includes extremely ...
Sep 06, 2011 |
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Melanin's 'trick' for maintaining radioprotection studied
Sunbathers have long known that melanin in their skin cells provides protection from the damage caused by visible and ultraviolet light. More recent studies have shown that melanin, which is produced by multitudes of the ...
Aug 23, 2011 |
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Explained: rad, rem, sieverts, becquerels
Sometimes it must seem as though reports on releases of radioactive materials from Japan’s Fukushima Daiichi nuclear powerplant in the wake of the devastating earthquake and tsunami are going out of their ...
Mar 28, 2011 |
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Magnetic fields on O-Class stars
The primary method by which astronomers can measure magnetic field strength on stars is the Zeeman effect. This effect is the splitting of spectral lines into two due to the magnetic field's effect on the ...
Dec 20, 2010 |
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New way of detecting concealed radioactive material
Researchers at the University of Maryland have proposed a scheme for detecting a concealed source of radioactive material without searching containers one by one. Detection of radioactive material concealed in shipping containers ...
Nov 09, 2010 |
3 / 5 (1) |
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Fermi maps an active galaxy's 'smokestack plumes'
If our eyes could see radio waves, the nearby galaxy Centaurus A (Cen A) would be one of the biggest and brightest objects in the sky, nearly 20 times the apparent size of a full moon. What we can't see when ...
Apr 01, 2010 |
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Lightning-produced radiation a potential health concern for air travelers
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 ...
Space & Earth / Earth Sciences
Dec 07, 2009 |
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Stereotactic radiotherapy stops lung cancer from growing in frail patients
Stereotactic body radiation therapy (SBRT) stopped the growth of cancer at its original site in the lung for three years among nearly 98 percent of patients with early non-small cell lung cancer (NSCLC) who are unable to ...
Nov 02, 2009 |
4 / 5 (1) |
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Gamma knife treatment for glioblastomas shows promising results
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 ...
Nov 02, 2009 |
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Gamma-ray photon race ends in dead heat; Einstein wins this round
Racing across the universe for the last 7.3 billion years, two gamma-ray photons arrived at NASA's orbiting Fermi Gamma-ray Space Telescope within nine-tenths of a second of one another. The dead-heat finish ...
Oct 28, 2009 |
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Fermi Telescope Caps First Year With Glimpse of Space-Time (w/ Video)
During its first year of operations, NASA's Fermi Gamma Ray Space Telescope mapped the extreme sky with unprecedented resolution and sensitivity. It captured more than one thousand discrete sources of gamma ...
Oct 28, 2009 |
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Herbal tonic for radiotherapy
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 ...
Oct 19, 2009 |
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