GAMMA-RAY COMPTON SPECTROSCOPY OF TUNGSTEN USING 662 KeV GAMMA-RAY RADIATION А
Samir A. Hamouda
Compton profile measurement of Tungsten polycrystalline sample has been performed with 662 KeV γ-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.
Keywords: high energy gamma-ray spectroscopy, methods and technologies, characterization techniques, modelling and materials theory, compton scattering, and detection techniques
For citation: Hamouda SA. Gamma-ray compton spectroscopy of tungsten using 662 keV gamma-ray radiation. Vestnik Mordovskogo universiteta = Mordovia University Bulletin. 2016; 2(26):211-217. DOI: 10.15507/0236-2910.026.201602.211-217
Acknowledgements: I would like to express my gratitude to the Compton group at the University of Warwick for providing the data reduction software package used in this work, and to Dr. M. J. Cooper for his fruitful discussions about this work.
This work is licensed under a Creative Commons Attribution 4.0 License.