Abstract
The differential cross section for the Rhodium and Tantalum has been calculated by using the Cross Section Calculations (CSC) in range of energy(1keV-1MeV) . This calculations based on the programming of the Klein-Nashina and Rayleigh Equations. Atomic form factors as well as the coherent functions in Fortran90 language Machine proved very fast an accurate results and the possibility of application of such model to obtain the total coefficient for any elements or compounds.
Highlights
There has been more interest in obtaining reliable values of cross section for elements and compounds as well as alloys because of its required in varity of applications in radiography, tomography,space physics,plasma physics etc [1]
II-Compton (Incoherent) Differential Cross section Compton scattering is an inelastic scattering process in which a photon imparts some of its energy to atomic electrons and is deflected through angle of scattering. .The differential cross section of Compton is proportional to atomic number Z of the absorber and given by Klein-Nashina equation [10]: d d incoherent
This equation gives the probability that a photon is deflected at given angle and transfer some momentum to the free electron, were α=hf/moc2 ((h is Planks constant, f photon frequency and moc2 is the rest mass energy of electron equals to 0.511MeV)) and the term S(q, Z)represents the incoherent scattering function will discussed in section
Summary
There has been more interest in obtaining reliable values of cross section for elements and compounds as well as alloys because of its required in varity of applications in radiography, tomography ,space physics ,plasma physics etc [1]. Where dΩ is the solid angle and the term d Thomson is defined as the d differential cross section of free electron or Thomson cross section [8]:
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