PHYWE - excellence in science
PHYWE - excellence in science

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Compton scattering of X-rays

Principle: Compton scattering is to be achieved by directing an X-ray beam against a piece of plastic. The portions of the scattered X-rays at various angles is to be measured with a counter tube. Measurements are to be made with an absorber positioned in front of and behind the scatterer, so that the Compton wavelength can be determined from the varying intensity attenuation of the X-rays at different wavelengths, using a premeasured transmission curve.

Tasks:
1.   The transmission of an aluminium absorber is to be determined as a function of the wavelength of the X-rays by means of Bragg scattering and the measured values plotted graphically.
2.   A scatterer is to be used and the intensity of the X-rays scattered at different angles determined. The intensity attenuation which occurs on placing an aluminium absorber in front of, and behind, the scatterer is to be determined for the same angles as previously, and the different transmission coefficients then calculated.
3.   The different transmission coefficients and the transmission curve are to be used to determine the changes in wavelengths.
4.   The Compton wavelength for 90° scattering is to be determined and compared with the theoretical value.

Artikel-Nr.Artikelbezeichnung
P2541700Compton scattering of X-rays
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