COMPUTER SCIENCE ENGINEERING
ENGINEERING PHYSICS
TOPICS COVERED- BRAGG’S SPECTROMETER
X RAYS AND THEIR TYPES, CRYSTALLINE AND
AMORPHOUS SOLIDS AND TYPES OF CRYSTAL
LATTICE (BRAVIS LATTICES).
1
Bragg's Spectrometer
Bragg's Spectrometer is used to determine the wavelength of X-Rays incident on a material.
Its structure is very similar to an optical spectrometer. In Bragg's spectrometer, X-rays from an
X-Ray Tube pass through two fine slits, S1 and S2, to form a fine single ray.
This fine X-Ray beam is directed onto a crystal (C) mounted on the spectrometer table (T).
This table has the capability to rotate about its vertical axis, and its rotation can be observed
from a circular graduated scale attached to the table.
The reflected beam from the crystal passes through S3 and S4 slits, which then enters the
ionization chamber (IC). The X-rays entering the ionization chamber ionize the gas present,
leading to the formation of a current.
This current is measured to determine the intensity of the X-rays reflected by the crystal.
(Mostly X-ray diffraction 10-90) SAXS Small angle x-ray spectroscopy.
DIAGRAM:
, B TECH
COMPUTER SCIENCE ENGINEERING
ENGINEERING PHYSICS
TOPICS COVERED- BRAGG’S SPECTROMETER
X RAYS AND THEIR TYPES, CRYSTALLINE AND
AMORPHOUS SOLIDS AND TYPES OF CRYSTAL
LATTICE (BRAVIS LATTICES).
2