Abstract
An observation of a low-energy helium scattering peak from the scattering of electrons is made by using three identical 127 deg cylindrical electrostatic spectrometers. A sharp peak is observed after electron impact on helium gas as the nominal incident electron energy is varied from 0.0 to 5.10 eV, and is seen in the scattering-angle range of 10 to 45 deg. The maximum scattering peak occurs at about 1.6 eV incident energy. The properties of the helium peak investigated and evidence for its reality are given.
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