Comparison of Neutron-Gamma Separation Qualities of Various Organic Scintillation Materials and Liquid Scintillator LSB-200

2020 ◽  
Vol 7 (2) ◽  
Author(s):  
Zdeněk Matěj ◽  
Filip Mravec ◽  
Aleš Jančár ◽  
Michal Košťál ◽  
František Kučera ◽  
...  
Keyword(s):  
Integration Method ◽  
Liquid Scintillator ◽  
Sampling Frequency ◽  
Neutron Field ◽  
Measured Data ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Gamma Spectrometer ◽  
Linearity Improvement ◽  
Spectrometric System

Abstract In this work, we compare the pulse-shape discrimination (PSD) properties of newly developed liquid scintillator LSB-200, EJ-299-33A, BC-501A, stilbene, p-terphenyl, and Hidex Aqualight in neutron field generated by the LVR-15 reactor with silicon filter utilization. Pulses from the scintillators are processed by the Neutron-Gamma spectrometer. This spectrometric system with fast digitizer card contains two analog–digital converters with a resolution of 12 bits and sampling frequency 500 × 106 Hz. For photomultiplier linearity improvement, the active divider has been used. Measured data from scintillators have been processed using the integration method and compared. The results are presented.

scholarly journals Comparison of neutron/gamma separation qualities of various organic scintillation materials

2020 ◽  
Vol 225 ◽  
pp. 04017
Author(s):  
Zdeněk Matěj ◽  
Filip Mravec ◽  
Aleš Jančář ◽  
Michal Košťál ◽  
František Kučera ◽  
...  
Keyword(s):  
Pulse Shape ◽  
Integration Method ◽  
Sampling Frequency ◽  
Neutron Field ◽  
Measured Data ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Gamma Spectrometer ◽  
Linearity Improvement ◽  
Spectrometric System

In this work we compare the pulse-shape discrimination (PSD) properties of EJ-299-33A, BC-501A, stilbene, p-terphenyl and Hidex Aqualight in neutron field generated by the LVR-15 reactor with silicon filter utilization. Pulses from the scintillators are processed by Neutron-Gamma spectrometer. This spectrometric system with fast digitizer card contains two analog-digital (A/D) converters with a resolution of 12 bits and sampling frequency 500 MHz. For photomultiplier (PMT) linearity improvement active divider has been used. Measured data from scintillators have been processed using the integration method and compared. Results are presented.

scholarly journals Comparison of neutron/gamma separation qualities of various organic scintillation materials

2020 ◽  
Vol 225 ◽  
pp. 04028
Author(s):  
Zdeněk Matěj ◽  
Filip Mravec ◽  
Aleš Jančář ◽  
Michal Košťál ◽  
František Kučera ◽  
...  
Keyword(s):  
Pulse Shape ◽  
Integration Method ◽  
Sampling Frequency ◽  
Neutron Field ◽  
Measured Data ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Gamma Spectrometer ◽  
Linearity Improvement ◽  
Spectrometric System

In this work we compare the pulse-shape discrimination (PSD) properties of EJ-299-33A, BC-501A, stilbene, p-terphenyl and Hidex Aqualight in neutron field generated by the LVR-15 reactor with silicon filter utilization. Pulses from the scintillators are processed by Neutron-Gamma spectrometer. This spectrometric system with fast digitizer card contains two analog-digital (A/D) converters with a resolution of 12 bits and sampling frequency 500 MHz. For photomultiplier (PMT) linearity improvement active divider has been used. Measured data from scintillators have been processed using the integration method and compared. Results are presented.

A sampling board optimized for pulse shape discrimination in liquid scintillator applications

2004 ◽  
Vol 51 (4) ◽  
pp. 1784-1790 ◽  
Author(s):  
G. Ranucci ◽  
R. Dossi ◽  
P. Inzani ◽  
G. Korga ◽  
P. Lombardi ◽  
...  
Keyword(s):  
Pulse Shape ◽  
Liquid Scintillator ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination

Data analysis in Borexino

2014 ◽  
Vol 29 (16) ◽  
pp. 1442012 ◽  
Author(s):  
Gemma Testera
Keyword(s):  
Data Analysis ◽  
Pulse Shape ◽  
Liquid Scintillator ◽  
Solar Neutrinos ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Analysis Method ◽  
Event Basis

The signal produced in Borexino by solar neutrinos interacting in the liquid scintillator has no particular signatures that allow to distinguish it from the background on a event-by-event basis. I recall the main features of the analysis method and, in particular, I describe three procedures that have been particularly implemented in Borexino and that are essential to extract the signal from the background: the reconstruction of the event position, the pulse shape discrimination and the three fold coincidence.

Testing of Scintillation Detectors in Quasi-Monoenergetic Neutron Spectra in a Silicon Filtered Neutron Beam at the LVR-15 Research Reactor

2019 ◽  
Vol 5 (3) ◽  
Author(s):  
Michal Košťál ◽  
Zdeněk Matěj ◽  
Filip Mravec ◽  
František Cvachovec ◽  
Martin Schulc ◽  
...  
Keyword(s):  
Cross Section ◽  
Homeland Security ◽  
Pulse Shape ◽  
Spontaneous Fission ◽  
Research Reactor ◽  
Neutron Field ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Neutron Spectra ◽  
Fission Spectrum

With increasing needs of neutron detection in energy and homeland security sectors, there is an aim in the development of new suitable detection materials with possible n/g separation and also satisfactory resolution. This issue is connected with a well-defined neutron field. The neutron standards 252Cf(spontaneous fission) and 235U(nth fission) have smooth spectra; thus, the tests in these fields can be used for testing of neutron gamma pulse shape discrimination (PSD), but cannot reveal possible problems in the deconvolution. New neutron field which is formed from fission spectrum filtered by 1 m thick silicon block was developed in Research Center Rez. Due to the course of the silicon cross section, the well-distinguished neutron peaks occur in filtered neutron spectrum. In this field, various scintillation materials, HIDEX Aqualight, and EJ299-33A were tested.

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