Gamma-ray compton spectroscopy of tungsten using 662 KeV gamma-ray radiation
Автор: Hamouda Samir A.
Журнал: Инженерные технологии и системы @vestnik-mrsu
Рубрика: Физика
Статья в выпуске: 2, 2016 года.
Бесплатный доступ
Compton profile measurement of Tungsten polycrystalline sample has been performed with 662 KeV y-radiation from a cesium-137 source scattered at 900. The Spectrometer calibration and data corrections for the high energy experiment are discussed. The data are compared with the augmented-plane-wave (APW) band theoretical Compton profile of Tungsten. Theoretical predictions show the band theory overestimates the momentum density at low momenta and underestimates it at intermediate momenta. The discrepancies between experiment and theory were attributed to some non-local exchange-correlation effects and the spin-orbital interaction effect which were neglected in the theoretical calculation.
High energy gamma-ray spectroscopy, methods and technologies, characterization techniques, modelling and materials theory, compton scattering, and detection techniques
Короткий адрес: https://sciup.org/14720209
IDR: 14720209 | DOI: 10.15507/0236-2910.026.201602.211-217
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