Principle

The polychromatic molybdenum X-ray spectrum is analyzed by means
of a monocrystal. The energy of the characteristic lines is
determined from the positions of the glancing angles at various
orders of diffraction. The separation of the K
a
doublet in higher order diffraction is examined.

Tasks


Record the intensity of the X-rays emitted by the molybdenum
anode as a function of the Bragg angle using a LiF monocrystal
as analyzer.

Determine the wavelengths and ratio of the intensities of the
two K
a
lines in high order diffraction and compare your results with 
the theoretical predictions.


What you can learn about


Characteristic X-ray radiation 

Energy levels

Selection rules

Bragg equation

Energy term symbols