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Gamma-ray Imaging

LEVEL 3 LABORATORY

High Energy Physics

Imaging with Gamma-ray Sources


Objectives of the Project

  • To develop an instrument that usues gamma rays to image the internal and external morphology of objects.
  • To detect the emission of characteristic x-rays and identify the composition of the objects.

Apparatus

  • Gamma/X-ray radiation detection system.
  • High voltage supplies.
  • Electronics: Amplifiers, Window discriminators, Coincidence unit, Scaler, Multi-channel Analyser.
  • Moveable x-y stage, control interface and LabView software

Experimental Procedure

  1. Set up and calibrate the detector and measure the gamma-ray spectrum of  a radioisotope which will be suitable for imaging.
  2. Choose simple shape of a suitable material to test the imaging software and make modifications if this proves to be necessary.
  3. Attempt to produce an image of characteristic x-rays emitted by the irradiated object.

Safety and Precautions

The sources for this project emit gamma radiation and tweezers must be used to hold these sources.

References

  • Knoll, G.F.: “Radiation Detection and Measurement”,
  • Lilley, J.: “Nuclear Physics. Principles and Applications”,
  • Bushberg, J.T.,  Seibert, J.A., Boone, J.M., and Leidholdt, E. M.: “The Essential Physics of Medical Imaging”,
  • Useful statistics


External links