Thursday, June 22, 2017

Software in Gamma-ray Spectroscopy

CAEN SyS now proposes radiation detection equipment for Alpha, Beta, Gamma, Neutron and X-ray radiation detection applications.

Let us focus here on Gamma-ray spectroscopy. While the company proposes various indoor and outdoor instruments for a variety of applications, it also has invested time and recourses on developing superior software to go along with the hardware.

A good gamma-ray spectrum analysis software is a key component in any radio-analytical or radiation measurement instrument. It has led the team of software developers to focus on:
Qualitative analysis
  • Identification of the radioactive nuclides in the sample
  • Resolving peak interferences
  • Differentiation between useful information from spectrum structures and artifacts 
  • Sum peaks 
  • Compton edges and back-scattered peaks 
  • Escape peaks 
  • Annihilation peak 
Qualitative analysis
  • Quantifying the amount of specific (radioisotope) and\or total radiation in the sample (sample mass or sample volume)
Problems faced by any spectrum analysis software for gamma-ray spectrometry includes catering to:  
  • Wide energy dynamic range
    • 40 keV to 3 MeV
  • Different detector response 
    • Diverse energy resolutions 
    • Dissimilar "continuum" shapes 
  • Wide range of detectors  
    • Detector types and crystal sizes
  • Complex detection efficiency response  
  • Influence of the measurement \ instrumental geometry
    • Sizes 
    • Sample composition
  • Some applications face odd situations
    • High or rapidly changing count rates
    • Varying continuum 
    • etc.
Setting objectives to cater to those spectrum analysis requirements has guided CAEN SyS developers in their endeavors to come up with superior performing software.
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