Atomic field bremsstrahlung from 3-10 keV electrons on rare gas atoms

Results are presented of an experiment to measure the photon energy spectrum from the atomic field bremsstrahlung process which occurs when an electron is scattered by a free gas atom. Incident electron energies range from 3 to 10 keV, on target atoms of helium, neon, argon, krypton and xenon, at a photon emission angle of 900