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very-high-energy gamma rays

(VHEGR)
(energetic gamma rays with 100 GeV to 100 TeV photon energy)

The term very-high-energy gamma rays (VHEGR) is used for gamma rays in the 100 GeV to 100 TeV range of energy-per-photon. Such high-energy photons are detected, typically with detectors for this specific range that detect Cherenkov radiation resulting from interaction of the high-energy photon with the Earth's atmosphere (Cherenkov detectors). The gamma rays are of interest because they are assumed to travel very straight, increasing the chances of identifying the source.

The term VHE is also used more generally for this energy range. Photons beyond 100 TeV are termed ultra-high-energy gamma rays.


(EMR,spectrum,band,gamma rays)
Further reading:
http://en.wikipedia.org/wiki/Very-high-energy_gamma_ray
WaveLFreqPhoton
Energy
  
12×10-21m24×1027Hz100TeVbeginvery-high-energy gamma rays
12×10-18m24YHz100GeVendvery-high-energy gamma rays

Referenced by pages:
ultra-high-energy gamma rays (UHEGR)
VHE

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