POLITRANI, a new toolkit to simulate organic scintillator pulses

Carasco, C.; Pérot, B.; Normand, S.; Sannie, G.

doi:10.1109/animma.2013.6727884

Cited by 2 publications

(3 citation statements)

References 16 publications

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“…The energy deposition of a proton is therefore converted in MeV equivalent electron (MeVee), which is the energy that an electron would release by slowing down in the plastic scintillator to produce the same light pulse. A previous study concerning BC-420 plastic scintillators [9] gives the following conversion in case for recoil protons: E (MeVee) = 0.0364En 2 + 0.125En and in case of recoil carbon nuclei [5] [10] the relationship is: E (MeVee) = 0.02En where En is the energy deposited by the neutron, in MeV. The only consider here fast neutron reactions inducing recoil protons in plastic scintillators.…”

Section: Thresholds Settings For Plastic Scintillatorsmentioning

confidence: 99%

“…Indeed, large detection volumes are needed to preserve coincidence counting statistics and therefore, a large number of PSD scintillators should be implemented as their size is limited. Actually, the difference between neutron and gamma ray pulse tails is not preserved in large PSD scintillators due to light multiple scattering [5] [6]. Finally, a large array of small (maximum 5 inches) PSD scintillators would increase the cost to a similar level as 3 He detectors, not to mention flammability and toxicity of organic liquid scintillators.…”

Section: Introductionmentioning

confidence: 99%

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Study of gamma-ray background noise for radioactive waste drum characterization with plastic scintillators

et al. 2020

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In the framework of the radioactive waste drum characterization using neutron coincidence counting, the Nuclear Measurement Laboratory of CEA Cadarache is studying plastic scintillators as an alternative to ideal but costly 3He gas proportional counters. Plastic scintillators are at least 5 times cheaper for the same detection efficiency, and in addition, they detect fast neutrons about three orders of magnitude faster than 3He detectors. However, they are sensitive to gamma rays, which implies the necessity to identify precisely gamma background sources that may affect the useful signal. This paper presents a detailed analysis of the gamma-ray spectrum of a radioactive waste drum containing glove box filters contaminated by plutonium dioxide. Gamma emissions accompanying inelastic scattering (n,n’) and (α,n) reactions that can lead to neutron-gamma coincidences parasitizing useful coincidences from plutonium spontaneous fissions are identified. Some of these parasitic gamma rays having energies up to several MeV, we plan to reject high-energy scintillator pulses with an electronics rejection threshold above 1 MeV, which should preserve the major part of useful fission neutron pulses.

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Section: Thresholds Settings For Plastic Scintillatorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study of gamma-ray background noise for radioactive waste drum characterization with plastic scintillators

et al. 2020

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show abstract

“…Indeed, large detection solid angles and volumes are needed to preserve coincidence counting statistics and therefore, a large number of PSD scintillators should be implemented as their size is limited. Actually, the difference between neutron and gamma-ray pulse tails is not preserved in large PSD scintillators due to multiple light scattering [12], [13]. Finally, a large array of small (maximum 5 in) PSD scintillators would increase the cost to a similar level as 3 He detectors.…”

Section: Introductionmentioning

confidence: 99%

High-Resolution Gamma Spectrometry of a Plutonium Bearing Waste Drum With High-Energy Reaction-Induced Gamma Rays

Bottau¹,

Tondut

Allinei³

et al. 2020

IEEE Trans. Nucl. Sci.

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In the framework of the radioactive waste drum characterization using neutron coincidence counting, the Nuclear Measurement Laboratory of French Alternative Energies and Atomic Energy Commission (CEA) Cadarache is studying plastic scintillators as an alternative to ideal but costly 3 He gas proportional counters. Plastic scintillators are at least five times cheaper for the same detection efficiency, and in addition, they detect fast neutrons three orders of magnitude more quickly than 3 He detectors. However, they are sensitive to gamma rays with no pulse shape discrimination abilities for large detection volumes, which implies the necessity to identify precisely gamma background sources that may affect the useful signal. This article presents a detailed analysis of the gamma-ray spectrum of a radioactive waste drum containing glove box filters contaminated by plutonium dioxide. Classical gamma emissions following alpha and beta disintegrations are identified, and also those accompanying inelastic scattering (n, n) or radiative capture (n, γ) reactions in the whole waste drum, and (α, n) or (α, p) reactions in the filtration media, which can lead to neutron-gamma coincidences parasitizing useful coincidences from plutonium spontaneous fissions.

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POLITRANI, a new toolkit to simulate organic scintillator pulses

Cited by 2 publications

References 16 publications

Study of gamma-ray background noise for radioactive waste drum characterization with plastic scintillators

Study of gamma-ray background noise for radioactive waste drum characterization with plastic scintillators

High-Resolution Gamma Spectrometry of a Plutonium Bearing Waste Drum With High-Energy Reaction-Induced Gamma Rays

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