Characterization of the Budapest prompt-gamma spectrometer by Monte Carlo simulations

L. Szentmiklósi, Andrey N. Berlizov

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The interpretation of prompt gamma-ray spectra and the prediction of the detection limits and run times for samples require the knowledge of the detector response function. The detector system used at the Budapest Prompt-Gamma Activation Analysis facility consists of an HPGe detector and a Bismuth Germanate Compton suppressor within lead shielding. The aim of the present study is to characterize this detector with Monte Carlo calculations and verify the results against measurements of radioactive and (n,γ) sources. We have used the Monte Carlo simulation program MCNP-CP to produce both unsuppressed and suppressed spectra and to study the effect of the detector parts on the shape of the spectrum.

Original languageEnglish
Pages (from-to)122-126
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume612
Issue number1
DOIs
Publication statusPublished - Dec 21 2009

Fingerprint

Spectrometers
spectrometers
Detectors
detectors
simulation
activation analysis
Activation analysis
suppressors
gamma ray spectra
Bismuth
Gamma rays
Shielding
bismuth
shielding
Lead
Monte Carlo simulation
predictions

Keywords

  • Anti-coincidence
  • Compton suppression
  • HPGe gamma-ray detector
  • MCNP-CP
  • Monte Carlo simulation

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

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AU - Berlizov, Andrey N.

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AB - The interpretation of prompt gamma-ray spectra and the prediction of the detection limits and run times for samples require the knowledge of the detector response function. The detector system used at the Budapest Prompt-Gamma Activation Analysis facility consists of an HPGe detector and a Bismuth Germanate Compton suppressor within lead shielding. The aim of the present study is to characterize this detector with Monte Carlo calculations and verify the results against measurements of radioactive and (n,γ) sources. We have used the Monte Carlo simulation program MCNP-CP to produce both unsuppressed and suppressed spectra and to study the effect of the detector parts on the shape of the spectrum.

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