Algorithms for digital γ-ray spectroscopy

• Autorzy: Guzik Z. , Krakowski T.
• Języki publikacji: EN

Abstrakty

EN

The data processing in modern nuclear spectroscopy is dominated by digital methods. In this paper we present a full set of algorithms necessary for energy reconstruction, baseline restoration, trigger generation and selection of events (acceptation) which are based on digital signal processing (DSP) techniques. All algorithms were fully evaluated using mathematical apparatus of Z-transform. The energy reconstruction algorithm is based on trapezoidal shaping. The baseline restoration makes the use of a digital moving average, while trigger generation algorithm utilize a digital form of RC-CR2 filter with protection windowing. The evaluated algorithms has been implemented and used in the demonstrator build for national borders protection.

Słowa kluczowe

EN

data acquisition; digital spectrometry; digital signal processing (DSP); gamma spectroscopy; Z-transform

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2013
• Tom: Vol. 58, No. 2
• Strony: 333--338
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Guzik Z.

• National Centre for Nuclear Research (NCBJ), 7 Andrzeja Sołtana Str., 05-400 Otwock/Świerk, Poland, Tel.: [phone], Fax: [phone]

autor

Krakowski T.

• National Centre for Nuclear Research (NCBJ), 7 Andrzeja Sołtana Str., 05-400 Otwock/Świerk, Poland, Tel.: [phone], Fax: [phone]

Bibliografia

• 1. Georgiev A, Gast W (1993) Digital pulse processing in high resolution high throughput gamma-ray spectroscopy. IEEE Trans Nucl Sci 40;4:770–779
• 2. Guzik Z, Borsuk S, Traczyk K et al. (2006) TUKAN-an 8K pulse height analyzer and multichannel scaler with a PCI or a USB interface. IEEE Trans Nucl Sci 53;1:231–235
• 3. Imperiale C, Imperiale A (2001) On nuclear spectroscopy pulses digital shaping and processing. Measurement 30:49–73
• 4. Jordanov VT, Knoll GF (1994) Digital synthesis of pulse shapes in real time in high resolution radiation spectroscopy. Nucl Instrum Methods A 345:337–345
• 5. Jordanov VT, Knoll GF, Huber AC, Pantazis JA (1994) Digital techniques for real-time pulse shaping in radiation
• 6. Kihm T, Bobrakov VF, Klapdor-Kleingrothaus HV (2003) A digital multichannel spectroscopy system with 100 MHz flash ADC module for the GENIUS-TF and GENIUS projects. Nucl Instrum Methods A 498:334–339
• 7. Nicolini R, Camera F, Blasi N et al. (2007) Investigation of the properties of a 1’’x 1’’ LaBr3:Ce scintillator. Nucl Instrum Methods A 582:554–561