Inter planar spacing

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Purpose: -

Calculate the interplanar distance of a cubic centered crystal using an X-ray diffraction pattern.

Apparatus: -

X-ray distribution pattern, Moving Microscope, table lamp.

Opinion: -

In X-ray diffraction (XRD) the space between the planet (space d) of the crystal is used for diagnostic purposes and symbols. Resolving Bragg's figure provides space between the crystal lattice atoms of the atom that produce constructive interference. The common relationship between incident length X-ray angle of incident and the space between crystal lattice atoms is known as the Braggs law, defined

n λ = 2d θ

When n (total value) is the “order” of the display, λ is the length of the X-ray event, d the space between the crystal and θ is the angle of the event.

Note: -

1. L.C of microscope Traveling = value of 1 MSD / Total VSD = 0.05 / 50 = 0.001cm

2.Wave X-ray length λ = 1.6Á

Process: -

1.Focus on the microscope on the various dots marked and record the reading of the microscope.

2.calculate the spaces between the planets d

Tabular column:-


Result:-

Obtained the interplanar spacing d=…..

 


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