Definitions for "KeV"
kiloelectron volt
1,000 ev (see electron volt)
kilo electron Volt. A unit of energy equal to one thousand eV. X-ray photons have energies of 0.1-100 keV.
Keywords:  joules
1000 eV = 1:073 544 171(92)x10-6 u = 1.602 176 53(14)x10-19 Joules