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How to make a gamma ray

A series of animations showing how gamma rays can be created through various particle interactions.
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Pion production and decay animation. A proton travelling  to the speed of light strikes a slower-moving proton. The protons survive the collision, but their interaction creates an unstable particle -- a pion -- with only 14 percent of the proton's mass. In 10 millionths of a billionth of a second, the pion decays into a pair of gamma-ray photons.    Pion production and decay animation. A proton travelling to the speed of light strikes a slower-moving proton. The protons survive the collision, but their interaction creates an unstable particle -- a pion -- with only 14 percent of the proton's mass. In 10 millionths of a billionth of a second, the pion decays into a pair of gamma-ray photons.
Duration: 23.0 seconds
Available formats:
  1280x720 (59.94 fps) QT         410 MB
  1280x720 (60 fps) Frames (Pion)
  1280x720 (30 fps) QT         9 MB
  960x720 (29.97 fps) MPEG-4   3 MB
  1280x720 (59.94 fps) QT         7 MB
  1280x720 (29.97 fps) MPEG-4   5 MB
  640x360 (29.97 fps) MPEG-4   1 MB
  320x180 (29.97 fps) MPEG-4   604 KB
  352x240 (29.97 fps) MPEG-1   5 MB
  1280x720   TIFF         2 MB
  960x540 (29.97 fps) WEBM         1000 KB
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Inverse Compton scattering animation.  An electron travelling at close the the speed of light has a head-on collision with a lower-energy photon (from radio to ultraviolet).  The photon picks up energy from the electron and becomes a gamma ray.    Inverse Compton scattering animation. An electron travelling at close the the speed of light has a head-on collision with a lower-energy photon (from radio to ultraviolet). The photon picks up energy from the electron and becomes a gamma ray.
Duration: 8.0 seconds
Available formats:
  1280x720 (59.94 fps) QT         89 MB
  1280x720 (60 fps) Frames (Inverse Compton)
  1280x720 (30 fps) QT         4 MB
  960x720 (29.97 fps) MPEG-4   3 MB
  1280x720 (59.94 fps) QT         2 MB
  1280x720 (29.97 fps) MPEG-4   1 MB
  640x360 (29.97 fps) MPEG-4   1 MB
  320x180 (29.97 fps) MPEG-4   587 KB
  320x240 (29.97 fps) MPEG-1   1 MB
  1280x720   TIFF         682 KB
  1280x720   JPEG         212 KB
  960x540 (29.97 fps) WEBM         922 KB
  320x180     PNG           59 KB
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Pair production animation.  A gamma ray grazes an atom  and interacts with it.  The reaction annihilates the gamma-ray photon and creates a matter/antimatter pair of an electron and a positron.    Pair production animation. A gamma ray grazes an atom and interacts with it. The reaction annihilates the gamma-ray photon and creates a matter/antimatter pair of an electron and a positron.
Duration: 17.1 seconds
Available formats:
  1280x720 (59.94 fps) QT         175 MB
  1280x720 (59.94 fps) QT         2 MB
  1280x720 (59.94 fps) QT         2 MB
  1280x720 (30 fps) QT         1 MB
  1280x720 (29.97 fps) MPEG-4   1 MB
  960x720 (29.97 fps) MPEG-4   967 KB
  640x360 (29.97 fps) MPEG-4   704 KB
  320x180 (29.97 fps) MPEG-4   338 KB
  1280x720   PNG           81 KB
  960x540 (29.97 fps) WEBM         519 KB
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Electron bremsstrahlung animation.  An electron travelling close the speed of light is deflected by the electric field of an atomic nucleus.  As it is deflected, it emits gamma rays..    Electron bremsstrahlung animation. An electron travelling close the speed of light is deflected by the electric field of an atomic nucleus. As it is deflected, it emits gamma rays..
Duration: 21.2 seconds
Available formats:
  1280x720 (59.94 fps) QT         2 MB
  1280x720 (30 fps) QT         1 MB
  1280x720 (59.94 fps) QT         2 MB
  320x180 (29.97 fps) MPEG-4   362 KB
  640x360 (29.97 fps) MPEG-4   730 KB
  960x720 (29.97 fps) MPEG-4   931 KB
  1280x720 (29.97 fps) MPEG-4   1 MB
  1280x720 (59.94 fps) QT         35 MB
  1280x720   PNG           85 KB
  960x540 (29.97 fps) WEBM         476 KB
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Short URL to This Page:http://svs.gsfc.nasa.gov/goto?10690
Animation Number:10690
Completed:2010-11-03
Animator:Scott Wiessinger (UMBC) (Lead)
Producer:Scott Wiessinger (UMBC)
Series:Astrophysics Animations
Goddard TV Tape:G2010-136 -- Fermi Gamma Ray Bubbles
Please give credit for this item to:
NASA/Goddard Space Flight Center
 
Keywords:
SVS >> Gamma Ray
SVS >> HDTV
DLESE >> Space science
SVS >> Astrophysics
SVS >> Universe
SVS >> Particle Physics
SVS >> Fermi
SVS >> Supernova
 
 


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Many of our multimedia items use the GCMD keywords. These keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0

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