Plastic scintillators with efficient light output and pulse shape discrimination produced via photoinitiated polymerization

2018 ◽  
Vol 136 (15) ◽  
pp. 47381 ◽  
Author(s):  
Allison Lim ◽  
Adam Mahl ◽  
Joseph Latta ◽  
Henok A. Yemam ◽  
Uwe Greife ◽  
...  
Keyword(s):  
Pulse Shape ◽  
Light Output ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Photoinitiated Polymerization ◽  
Plastic Scintillators

scholarly journals HETEROSTRUCTURED ORGANIC SCINTILLATORS WITH A HIGH PULSE-SHAPE DISCRIMINATION CAPABILITY FOR RADIOECOLOGY PROBLEMS

2021 ◽  
pp. 56-60
Author(s):  
I.F. Khromiuk ◽  
N.Z. Galunov ◽  
N.L. Karavaeva ◽  
A.V. Krech ◽  
Ya.I. Polupan ◽  
...  
Keyword(s):  
Pulse Shape ◽  
Optical Transmission ◽  
Light Output ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Discrimination Capability ◽  
Grain Sizes ◽  
Relative Light Output ◽  
High Pulse ◽  
Organic Scintillators

Studies of the relative Light output and optical transmission of organic composite scintillators with different grain sizes were performed. The research results showed that for samples with grains 0.06…0.3 mm in size, in contrast to the samples with larger grains, the relative light output and optical transmission are lower.

Detection and discrimination of α- and β-radiation with plastic scintillators based on pulse shape discrimination

2020 ◽  
Vol 15 (04) ◽  
pp. P04008-P04008
Author(s):  
Z.H. Zhang ◽  
Y.F. Zhang ◽  
C.Y. Hu ◽  
S. Feng ◽  
J.J. Zhu ◽  
...  
Keyword(s):  
Pulse Shape ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Plastic Scintillators

scholarly journals Pulse shape simulations for organic scintillation detectors using Geant4

2021 ◽  
Vol 253 ◽  
pp. 11002
Author(s):  
Caroline Holroyd ◽  
Michael Aspinall ◽  
Tom Deakin
Keyword(s):  
Pulse Shape ◽  
Plastic Scintillator ◽  
Organic Liquid ◽  
Simulated Data ◽  
Pulse Shape Discrimination ◽  
Scintillation Detectors ◽  
Shape Discrimination ◽  
Radiation Fields ◽  
Plastic Scintillators ◽  
Temporal Pulse

The accurate simulation of the temporal pulse shapes from organic scintillation detectors capable of pulse shape discrimination (PSD) presents the opportunity to assess the pulse shape discrimination of these detectors prior to fabrication. The aim of this study is the simulation of the temporal pulse shapes from EJ-276, a PSD-capable plastic scintillator developed by Eljen Technologies. PSD plastic scintillators are increasingly replacing organic liquid scintillators for the detection of neutrons in the presence of mixed radiation fields for nuclear security applications. Plastics are inexpensive, robust and can be fabricated in a variety of shapes and sizes. They offer a solid-state alternative to liquid scintillators which can be difficult to transport due to the risk of leakage. However, the PSD performance of plastic scintillators has been observed to decrease due to various factors which combine to influence the overall shape of the pulse. The Monte Carlo toolkit Geant4 has been used to simulate the temporal pulse shapes from an EJ-276 plastic scintillator coupled to a photomultiplier tube (PMT). All three decay time components of EJ-276 have been modelled, utilising new methods available in the latest version of Geant4, for two different scintillator geometries. The simulated n/γ pulse shapes reproduce the features important for PSD. Future work will involve integrating the temporal response of the PMT with existing pulse shape simulations. Simulated data will then be compared with experimental measurements.

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