A remote reactor monitoring with plastic scintillation detector

Georgadze, A. Sh.; Litvinov, D.A.; Pavlovych, V. M.; Ponkratenko, O. A.

doi:10.48550/arxiv.1610.05884

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such a detector type to detect antineutrinos aboveground, it should have relatively strong background rejection and good energy resolution to measure antineutrino spectrum precisely. While 15% FWHM at 1 MeV energy resolution is enough to measure fuel composition evolution with plastic antineutrino detectors [10], achieving a higher energy resolution provides more accurate spectral measurement and increases the precision of spectral analysis and consequently enhances sensitivity level of the detector to the changes of isotopic composition of the reactor core. In addition, better energy resolution ensures better background rejection.…”

Section: Introductionmentioning

confidence: 99%

Simulation and efficiency studies of optical photon transportation and detection with plastic antineutrino detector modules

Kandemir

Çakır

2018

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

In this work, the simulation of optical photons is carried out in an antineutrino detector module consisting of a plastic scintillator connected to light guides and photomultipliers on both ends, which is considered to be used for remote reactor monitoring in the field of nuclear safety. Using Monte Carlo (MC) based GEANT4 simulation, numerous parameters influencing the light collection and thereby the energy resolution of the antineutrino detector module are studied: e.g., degrees of scintillator surface roughness, reflector type, and its applying method onto scintillator and light guide surface, the reflectivity of the reflector, light guide geometries and diameter of the photocathode. The impact of each parameter is investigated by looking at the detected spectrum, i.e. the number photoelectrons per depositing energy. In addition, the average light collection efficiency of the detector module and its spatial variation are calculated for each simulation setup. According to the simulation results, it is found that photocathode size, light guide shape, reflectivity of reflecting material and wrapping method show a significant impact on the light collection efficiency while scintillator surface polishing level and the choose of reflector type show relatively less impact. This study demonstrates that these parameters are very important in the design of plastic scintillator included antineutrino detectors to improve the energy resolution efficiency.

show abstract

Section: Introductionmentioning

confidence: 99%