Laboratory measurements will be presented on the energy and angle distribution of energetic neutral atoms (ENA) reflecting from lunar regolith. Mass selected H+ and He2+ pulsed ion beams were used to simulate the solar wind impacting a solid target. A low energy ion, 0.5 to 5 keV, impacting a surface loses energy by ionization, secondary electron emission, excitation, and potential sputtering. When the straggling of low energy ions impacting a surface becomes comparable to the penetration depth, backscattering of ions and ENAs can occur. A peak is observed in the backscattered neutral H energy profile from 100-300 eV with a 1 keV H+ beam. The energetic backscattering fraction can be up to 20% for H atoms and varies as a function of the incident ion angle with the maximum occurring at ~60° due to the forward direction of the secondary cascade. Therefore, surface roughness plays a major role in the backscattering angle and energy distribution. The regolith of airless bodies is very rough on the microscopic scale which can lead to transmission of the incident ion through the grains with possible adsorption of the ejecta onto neighboring surfaces.