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Comparison of digital signal processing modules in gamma-ray spectrometry
Marie-Christine Lépy1, Ousmane Ibrahima Cissé2, Sylvie Pierre1
1CEA, LIST, Laboratoire National Henri Becquerel, PC 111, Gif-sur-Yvette F-91191, France.
Commercial digital signal-processing modules show promise for gamma-ray spectrometry. Tests using a germanium detector and a Eu-152 source confirm their reliability for quantitative measurements.
Area of Science:
- Nuclear Physics
- Spectroscopy
- Metrology
Background:
- Digital signal processing (DSP) offers potential advancements in gamma-ray spectrometry.
- Evaluating commercial DSP modules is crucial for their practical application.
Purpose of the Study:
- To assess the suitability of commercial DSP modules for gamma-ray spectrometry.
- To evaluate spectrum quality and measurement reliability using these modules.
Main Methods:
- Utilized an n-type high-purity germanium detector for all tests.
- Employed a Europium-152 (Eu-152) point source for spectrum analysis.
- Investigated energy resolution, peak area, and count rate stability against shaping parameters.
Main Results:
- Spectrum quality was analyzed in terms of energy resolution and peak area.
- The stability of reference peak count rates relative to total count rates was examined.
- Performance was evaluated concerning shaping parameters of the DSP modules.
Conclusions:
- Commercial DSP modules demonstrate applicability for gamma-ray spectrometry.
- The study provides insights into the reliability of quantitative results for metrological measurements.
- Findings support the use of DSP modules in high-precision gamma-ray spectroscopy.
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