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1. Gamma Ray´s Official Homepage
- www.gamma-ray.com
- Gamma Ray´s Official Homepage .
- http://gamma-ray. ...
2. CGSD - Gamma Correction Home Page
- www.cgsd.com
- Gamma .
- What is Gamma Correction and Why do I Care? .
- Some Gamma Terms Defined .
- Gamma Correction Steps on Various Platforms .
- Gamma in Common Software and Library Routines .
- How Gamma Effects Color Coordinates in Various Color Spaces .
- Greater Palette Control via Gamma Encoding .
- Gamma and the World Wide Web.
- Portable Network Graphics (PNG) file format with gamma encoding.
- Others Speak Out About Gamma.
- An Explanation of Monitor Gamma - Robert Berger, Carnegie Mellon Univ.
- Fixing Gamma - Philip Greenspun, photographer and researcher at MIT.
- About Gamma Correction - Stanford University .
- We would like to thank Charles Poynton whose online documents helped us to better understand gamma and the way it is used in various systems. ...
- Various Poynton Articles - including one on Gamma.
- ABOUT CGSD | UPDATE | PROJECTS | REALTEXTURE TOOLS | REALTEXTURE LIBRARY | COLOR SCIENCE LIBRARY | REAL TIME GRAPHICS | DICTIONARY | ONLINE DOCUMENTS | GAMMA LITERATURE | STAFF HOME PAGE | WEB LINKS | MOUNTAIN VIEW WEB | MOUNTAIN VIEW PHOTOS.
3. Gamma Phi Beta :: Welcome To Gamma Phi Beta
- www.uwosh.edu
- Gamma Rho Chapter.
- The Gamma Rho Chapter of Gamma Phi Beta Welcomes You!.
- The Gamma Phi Beta Experience.
- Gamma Phi Beta is an International Sorority dedicated to helping women realize their full potential. ...
- Founded on the principles of honor, friendship, truth, and knowledge, Gamma Phi Beta can help you realize your dreams and provide opportunities for individual growth. As sisters in Gamma Phi Beta, we promote lifelong friendships. ...
- As a part of these benefits of sisterhood in Gamma Phi Beta, we offer a very important aspect to many college students. ... Gamma Phi Beta teaches each member to celebrate herself as an individual by promoting the highest form of womanhood.
- Looking into the future, Gamma Phi Beta will always be there. ... Gamma Phi Beta International Sorority provides opportunities for alumnae to either get involved in a new alumnae chapter, receive career consultation and resources, or also reconnect with other G Phi B's nationwide.
- That's why we welcome you to Gamma Phi Beta, the first women's society to be called a sorority!.
4. APOD: May 29, 1996 - The COMPTEL Gamma-Ray Sky
- antwrp.gsfc.nasa.gov
- The COMPTEL Gamma-Ray Sky .
- Credit: The COMPTEL Collaboration, Compton Gamma Ray Observatory, NASA .
- Explanation: This premier gamma-ray view of the sky was produced by the COMPTEL instrument onboard NASA's orbiting Compton Gamma Ray Observatory. ... Gamma-ray intensity is represented by a false color map - low (blue) to high (white). COMPTEL's sensitivity to gamma-rays which have over 1 million times the energy of visible light photons reveals the locations of some of the Galaxy's most exotic objects. ... Moving along the plane from the Crab, more than halfway toward the galactic center, another bright gamma-ray source, the Vela pulsar, appears. ... Both above and below the plane, spots of gamma-ray emission due to distant active galaxies are also visible. ...
5. Gamma-rays
- imagers.gsfc.nasa.gov
- RADIO WAVES | MICROWAVES | INFRARED | VISIBLE LIGHT | ULTRAVIOLET | X-RAYS | GAMMA-RAYS .
- Gamma-rays.
- Gamma-rays have the smallest wavelengths and the most energy of any other wave in the electromagnetic spectrum. ... Gamma-rays can kill living cells, a fact which medicine uses to its advantage, using gamma-rays to kill cancerous cells. ...
- Gamma-rays travel to us across vast distances of the universe, only to be absorbed by the Earth's atmosphere. ... Instruments aboard high-altitude balloons and satellites like the Compton Observatory provide our only view of the gamma-ray sky. ...
- Gamma-rays are the most energetic form of light and are produced by the hottest regions of the universe. ... Things like supernova explosions (the way massive stars die), neutron stars and pulsars, and black holes are all sources of celestial gamma-rays. ...
- How do we "see" using gamma-ray light?.
- Gamma-ray astronomy did not develop until it was possible to get our detectors above all or most of the atmosphere, using balloons or spacecraft. The first gamma-ray telescope, carried into orbit on the Explorer XI satellite in 1961, picked up fewer than 100 cosmic gamma-ray photons! .
- Unlike optical light and X-rays, gamma rays cannot be captured and reflected in mirrors. ... Gamma-ray telescopes use a process called Compton scattering, where a gamma-ray strikes an electron and loses energy, similar to a cue ball striking an eight ball. ...
- What do gamma-rays show us?.
- If you could see gamma-rays, the night sky would look strange and unfamiliar. ...
- The gamma-ray moon just looks like a round blob - lunar features are not visible. In high-energy gamma rays, the Moon is actually brighter than the quiet Sun. ...
6. Gamma Radiation & X-Rays
- www.orau.gov
- Gamma Radiation and X-Rays .
- Characteristics of Gamma Radiation and X-Rays.
- Gamma radiation and X-rays are electromagnetic radiation like visible light, radio waves, and ultraviolet light. ... Gamma rays and X-rays are the most energetic of these.
- Gamma radiation is able to travel many meters in air and many centimeters in human tissue. ...
- X-rays are like gamma rays. ...
- Radioactive materials that emit gamma radiation and X-rays constitute both an external and internal hazard to humans.
- Dense materials are needed for shielding from gamma radiation. ...
- Gamma radiation is detected with survey instruments, including civil defense instruments. ...
- Gamma radiation or X-rays frequently accompany the emission of alpha and beta radiation.
- Instruments designed solely for alpha detection (such as an alpha scintillation counter) will not detect gamma radiation.
- Pocket chamber (pencil) dosimeters, film badges, thermoluminescent, and other types of dosimeters can be used to measure accumulated exposure to gamma radiation.
7. Very High Energy Gamma Ray Group, Department of Physics, University of Durham.
- www.dur.ac.uk
- Welcome to the homepage of the Very High Energy (VHE) Gamma Ray Astronomy Group based at the University of Durham, UK.
- The group investigates into the sources of gamma rays coming from objects far out in space such as neutron stars, white dwarfs, pulsars, X-ray binary systems, supernova remnants and active galactic nuclei.
- This facility allows us to study gamma ray astrophysics to greater precision than ever before.
8. Kansas State Gamma Phi Beta
- www.ksu.edu
- Welcome to the homepage of the Beta Upsilon Chapter of Gamma Phi Beta. Thanks for visiting! Gamma Phi Beta is committed to scholarship, community, leadership and sisterhood. Gamma Phi Beta tries to make sure that everyone feels welcomed and comfortable. ...
- The Women of Gamma Phi Beta.
- Gamma Phi Beta Sorority Kansas State University © 2000, 2003. ...
- No portion may be reproduced without written permission of Gamma Phi Beta Kansas State University. ...
9. Scientists witness visible light from a powerful gamma-ray burst
- science.nasa.gov
- Robotic telescope captures visible light from a powerful gamma-ray burst.
- Jan 27, 1999: For the first time, scientists have witnessed the visible light emitted at the same time as a gamma-ray burst, a mysterious explosion in the far reaches of the universe.
- Jerry Fishman, principal investigator for the Burst and Transient Source Experiment (BATSE), a NASA instrument on board the Compton Gamma Ray Observatory which captured the gamma-ray burst, and alerted other observers.
- Interestingly, the peak of the optical brightness did not correspond in time to the peak in brightness of the gamma-ray burst. ... The top three images were taken during the gamma-ray burst, the bottom three were taken of the optical afterglow, after the prompt gamma-ray burst event had ended.
- Gamma-ray bursts, brief flashes of gamma-ray energy lasting from a few milliseconds to a few hundred seconds, disappear almost as fast as they appear. ... Gamma-rays are far outside the visible part of the spectrum and cannot be detected by the human eye. Scientists, using gamma-ray telescopes, detect only a few hundred gamma-ray bursts a year. ... Instruments used to capture this most recent burst were BATSE, on board NASA's Compton Gamma Ray Observatory, in co-operation with the Los Alamos National Laboratory's ROTSE (Robotic Optical Transient Search Experiment) and the Italian-Dutch satellite BeppoSAX.
- The detection of optical emission at the same time as a gamma-ray burst was made possible by the Gamma-Ray Burst Coordinates Network. Ironically, this outstanding capability was possible only because of an unfortunate hardware failure on the Compton Gamma-Ray Observatory.
- The gamma-ray telescope, BATSE, developed at NASA's Marshall Space Flight Center in Huntsville, Ala. , continually monitors the sky for gamma-ray sources. ... In order to determine the gamma-ray burst location more quickly, a team of scientists, led by Dr. Scott Barthelmy at NASA's Goddard Space Flight Center, implemented the Gamma-ray burst Coordinates Network (GCN). This system automatically intercepts BATSE data at Goddard, calculates a rough gamma-ray burst position, and within seconds distributes the location over the Internet to eager observers around the world.
10. Welcome
- www.phigam.org
- Loading Phi Gamma Delta Website.
11. Chicago Air Shower Array (CASA) Home Page
- hep.uchicago.edu
- Ultrahigh Energy Cosmic Rays and Gamma Rays .
- The Chicago Air Shower Array is an experiment to detect energetic cosmic rays and gamma-rays. The goal of the experiment is to measure the location, arrival direction, and energy of incoming cosmic rays and gamma-rays with energies above 10^14 eV, and to apply this information to investigate the origin cosmic rays and the nature of astrophysical source of the most energetic sources of gamma-rays. ...
- The goals of CASA are to explore the nature of cosmic rays and to search for sources of ultrahigh energy gamma-rays which may point to the origins of cosmic rays. Recent interest in gamma-ray astronomy has been sparked by the detection of dozens sources by the EGRET detector aboard NASA's Compton Gamma Ray Observatory and the detection of both AGN and gamma-ray plerion sources such as the Crab Nebula at energies above 10^12 eV by the Whipple Observatory and other ground-based Air-Cherenkov detectors. ...
- 25 square km air shower array which detects the electromagnetic showers produced by gamma rays and cosmic rays at 100 TeV and above. ...
- CASA operated for gamma-ray astronomy from 1990 to 1997. ...
- Constaints on Gamma-ray Emission from the Galactic Plane at 300 TeV. ...
- Limits on the Isotropic Diffuse Flux of Ultrahigh Energy Gamma-Radiation. ...
- High Statistics Search for Ultrahigh Energy Gamma-Ray Emission from Cygnus X-3 and Hercules X-1. ...
- A Search for Ultrahigh Energy Gamma-Ray Emission from the Crab Nebula and Pulsar. ...
12. NASA/Marshall Astronomy Headline: GRB Optical Counterpart
- wwwssl.msfc.nasa.gov
- Discovery may be "Smoking Gun" in Gamma Ray Burst Mystery.
- An international team of University and NASA astronomers have detected a flash of light from a distant galaxy - a sentinel that may definitively solve a 30-year mystery in astrophysics by demonstrating that cosmic gamma-ray bursts come from the distant reaches of the universe.
- That would mean gamma-ray bursts represent an energy release in a few seconds equivalent to the amount our Sun will emit in its entire ten-billion-year lifetime.
- Jan van Paradijs, the Pei-Ling Chan eminent scholar in physics at The University of Alabama in Huntsville and a professor of astronomy at the University of Amsterdam, has identified a dim, distant galaxy as the possible source of a gamma-ray burst that swept through the sky on February 28.
- One of the least understood phenomena in astrophysics, gamma-ray bursts are powerful flashes of gamma rays that are detected about once a day from random locations in the sky. Gamma rays are electromagnetic radiation at the highest end of the energy spectrum, carrying energies almost a million times higher than visible light.
- When they happen, gamma-ray bursts outshine all other sources of gamma rays combined.
- The discovery of gamma-ray bursts in the late 1960s was accidental. Since that time, astronomers who tried to find the source of gamma-ray bursts found nothing unusual when they looked in the directions from which bursts originated.
- 28, the Gamma-Ray Burst Monitor aboard the Italian-Dutch BeppoSAX satellite detected a gamma-ray burst that was also within the field of view of one of the SAX Wide Field Cameras. ...
- Gamma-ray burst detectors aboard the Ulysses and Wind spacecraft also saw the burst.
- Its position was narrowed to within one arc minute (one-sixth the diameter of the original box), consistent with the source of the gamma-ray burst.
- Visit the BATSE Home-Page and Learn More about Gamma Ray Bursts!!!.
- "To me, this is fairly convincing evidence that the transient X-ray and optical sources are the same, and that both are associated with the gamma-ray burst," said van Paradijs. "If these transients are from the distant galaxy, we have, for the first time, found the site of a gamma-ray burst. ...
- Charles Meegan, a BATSE co-investigator and gamma-ray burst expert at Marshall. ...
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