Compton profile measurements of lithium fluoride with 662 keV radiation
نویسندگان
چکیده
The isotropic Compton profile of lithium fluoride has been deduced from Compton scattering measurements on poly crystalline sample at gamma ray source energy of 662 keV. Here we report the experimental and theoretical Compton profile of lithium fluoride. We calculated directional Compton profile and their anisotropic effect using self-consistent Hatree-Fock wave functions employed on the linear combination of atomic orbital (HF-LCAO) approximation. The spherical average Compton profile has also been calculated and compared with the experimental results. The experimental results are found to be in good agreement with the HF-LCAO results and in qualitative agreement with Hartree-Fock free atom values. PACS: 32.80.Cy, 71.15.Ap, 71.20.Ps, 78.90.+t.
منابع مشابه
Radiation attenuation of boron doped clay for 662, 1173 and 1332 keV gamma rays
Background: Radiation shielding properties is an important for a material wish can be used the photon attenuation coefficients of clay produced using different rate of boron have been measured for the purpose of radioactive waste disposal. Materials and Methods: The measurement has been performed using gamma spectrometer contains NaI (Tl) detector at the photon energies of 662, 1173 an...
متن کامل3D visualization of XFEL beam focusing properties using LiF crystal X-ray detector
Here, we report, that by means of direct irradiation of lithium fluoride a (LiF) crystal, in situ 3D visualization of the SACLA XFEL focused beam profile along the propagation direction is realized, including propagation inside photoluminescence solid matter. High sensitivity and large dynamic range of the LiF crystal detector allowed measurements of the intensity distribution of the beam at di...
متن کاملAnharmonic thermal oscillations of the electron momentum distribution in lithium fluoride.
Anharmonic thermal effects on the electron momentum distribution of a lithium fluoride single crystal are experimentally measured through high-resolution Compton scattering and theoretically modeled with ab initio simulations, beyond the harmonic approximation to the lattice potential, explicitly accounting for thermal expansion. Directional Compton profiles are measured at two different temper...
متن کاملCompton scattering of 662 keV gamma rays by aluminium and copper materials using NaI(Tl) detector
A rotating NaI(TI) scintillator detector and a collimated Cs 137 source producing gamma rays with an energy of 662 keV scattered incoherently by aluminum (Al) and copper (Cu) scatterers through the angles from 0 to 120° are used to study Compton scattering. The Compton scattering effect is investigated and found that the energy of scattered gamma ray decreases as the scattering angles increases...
متن کاملResults of a Si/CdTe Compton Telescope
We have been developing a semiconductor Compton telescope to explore the universe in the energy band from several tens of keV to a few MeV. We use a Si strip and CdTe pixel detector for the Compton telescope to cover an energy range from 60 keV. For energies above several hundred keV, the higher efficiency of CdTe semiconductor in comparison with Si is expected to play an important role as an a...
متن کامل