Abstract
In this study, it has been measured the Compton Profile of the CO2 gas at different pressures by using a Compton Profile Spectrometer with an annular Am-241 radioactive source and a HPGe detector. CO2 gas molecules sealed in a gas chamber at different pressures. The gas pressure had been set by using an analog manometer before the measurements. The γ-rays emitted from source was incident into the gas from a hostaphan window. The detector recorded the scattered photons from molecules. To obtain correct Compton Profile values, the raw data were corrected for some effects; i.e. scattering from the gas chamber’s walls, absorption effects of windows on gas chamber and detector, and multiple scattering corrections. A Matlab Code has been used for all calculations. The results clearly demonstrate the valance electronic structure of the materials is highly depending on the pressure. According to our experimental results, when the pressure in the gas chamber increase the Compton Profiles of valance electrons changes ∼ 8,0%.
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