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(100 GeV or more)

The adjective VHE (for very-high-energy) is used for gamma rays with rather high energy photons, generally meaning 100 GeV or more, very-high-energy gamma rays (VHEGR). Similarly, the term UHE for ultra-high-energy is used for gamma-ray photon energies beyond 100 TeV, ultra-high-energy gamma rays (UHEGR).

The same adjectives may be used for and cosmic-ray particles with substantial kinetic energy, but the intended energy thresholds are not necessarily the same, probably substantially higher.

Further reading:

Referenced by pages:
cosmic rays (CR)
ultra-high-energy gamma rays (UHEGR)
very-high-energy gamma rays (VHEGR)