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عنوان البحث(Papers / Research Title)


Expansion of X-ray form factor for close shell using uncorrelated wave function


الناشر \ المحرر \ الكاتب (Author / Editor / Publisher)

 
ايناس محمد سلمان الربيعي

Citation Information


ايناس,محمد,سلمان,الربيعي ,Expansion of X-ray form factor for close shell using uncorrelated wave function , Time 04/01/2017 10:28:52 : كلية العلوم للبنات

وصف الابستركت (Abstract)


Expansion of X-ray form factor for close shell using uncorrelated wave function

الوصف الكامل (Full Abstract)

X-rays are produced when fast-moving electrons impinge on matter. The phenomena
resulting from the deceleration of such electron are very complex, and X-rays result
from two general types of interaction of the electron with the atoms of the target
material. X-rays are electromagnetic waves, and as such are accompanied by
periodically changing field as they proceed outward from their source. An electron
in path of such a wave is excited to periodic by changing field , and itself becomes
a source of electromagnetic waves of the same frequency and wavelength. An atom is
made up of a positively charged nucleus surrounded by a cloud of electrons, one for
each increment of nuclear charge , the number being equal to the atomic number of
the element i n question. The scattered waves from the several electrons in an atom
combine , so that the scattering effect an atom is essentially
that of appoint source of scattered X-ray.

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