Gamma-spectroscopy with scintillation detector
Supervisor: Dr. Jürgen Vogt
In this
experiment gamma spectroscopy with scintillation detectors is
done on radioactive samples. Scintillation detectors do not
need a costly cooling like semiconductor detectors. Therefore
they may be used for field experiments but the detection
properties are behind those of semiconductors. The registered
gamma rays are analysed according to there energy with a
multi-channel-analyser. The experiment illustrates also
radiation measurement and radiation safety procedures in
medicine and industry.
The following exercises are to be solved:
- Discussion of physical effects in detectors by means of a Cs-137 spectrum
- Determination of the energy resolution of the spectrometer
- Record of two spectra of unknown samples, identification of the nuclides and there natural decay chains
- Determination of the mass attenuation coefficient of aluminium for different gamma energies
- Gamma-ray back scattering measurement
