Pulse-shape discrimination of the new plastic scintillators in neutron–gamma mixed field using fast digitizer card

Jančář, Aleš; Kopecký, Zdeněk; Dressler, Jan; Veškrna, Martin; Matěj, Zdeněk; Granja, Carlos; Solar, M.

doi:10.1016/j.radphyschem.2015.05.007

Cited by 13 publications

(2 citation statements)

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“…Each branch is amplified differently and digitized by a separate ADC. Different amplification increases the dynamic range of particles that the NGA-01 is able to process [1]. The input analog signal from the detector was digitized by two fast ADC converters working with a sampling frequency of 500 MHz.…”

Section: Neutron Gamma Analyzermentioning

confidence: 99%

Experimental Measurement of Secondary Neutrons on Particle Accelerators

Jančář¹,

Kopecký²,

Čuleň³

et al. 2022

RAD Conference Proceedings

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A newly developed fast digital spectrometer for neutron spectroscopy is presented. The pulse shape discrimination (PSD) performance of the spectrometer has been evaluated within two experiments with different neutron energies. The experimental measurements of secondary neutrons were carried out in the laboratory of the Van de Graaff accelerator and at the Proton Therapy Center in Prague. For both experiments, a liquid scintillator detector BC-501A (NE-213) was used. The results of experiments demonstrate the very good quality of the PSD discrimination of the spectrometer. The experimental spectra of secondary neutrons were compared with spectra obtained by means Monte Carlo simulations. The detector response matrix and the flux of secondary neutrons and protons in the vicinity of irradiated proton therapy phantom were calculated using Monte Carlo simulations.

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Section: Neutron Gamma Analyzermentioning

confidence: 99%

Experimental Measurement of Secondary Neutrons on Particle Accelerators

Jančář¹,

Kopecký²,

Čuleň³

et al. 2022

RAD Conference Proceedings

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“…Most of the difference in pulse shape only emerges after the peak. The PSD is commonly achieved by analyzing the difference between two charge-integration gates over different time ranges [19,20,21,22]. There exist several nomenclatures in the literature for naming these two components.…”

Section: Pulse Shape Discriminationmentioning

confidence: 99%

Value-assigned pulse shape discrimination for neutron detectors

Teh,

Lee,

Zhu

et al. 2020

Preprint

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Using the waveforms from a digital electronics system, an offline analysis technique on pulse shape discrimination (PSD) has been developed to improve the n-γ separation in a bar-shaped NE-213 scintillator that couples to a photomultiplier tube (PMT) at each end. The new improved method, called the "valued-assigned PSD" (VPSD), quantifies the separation between neutrons and gamma rays. Position dependence of PSD can be taken into account and automated using VPSD method. The resulting n-γ identification is much improved when compared to the traditional technique that uses the geometric mean (GM) of light outputs from both PMTs.

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