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نمایش تعداد 1-10 از 198
Photocathode non-uniformity contribution to the energy resolution of scintillators
This paper introduces the basics of the light transport simulation in scintillators and the wavelength-dependencies in the process. The non-uniformity measurement of the photocathode surface is undertaken, showing that for the photocathode used...
A plastic scintillator-based 2D thermal neutron mapping system for use in BNCT studies
In this study, a scintillator-based measurement instrument is proposed which is capable of measuring a two-dimensional map of thermal neutrons within a phantom based on the detection of 2.22MeV gamma rays generated via nth+H→D+γ reaction...
Low-energy neutron flux measurement using a resonance absorption filter surrounding a lithium glass scintillator
filter surrounding a miniature-type lithium glass scintillator. the count with and without the filter surrounding the detector gives the number of resonance-energy neutrons. Some preliminary results and a comparison with the MCNP code are shown....
Comparison of light transport-incorporated MCNPX and FLUKA codes in generating organic scintillators responses to neutrons and gamma rays
The NE102 plastic scintillator response to 137Cs gamma rays and NE213 liquid scintillator response to both mono-energetic and 241Am–Be neutrons have been modeled using FLUKA׳s EVENTBIN and MCNPX׳s PTRAC cards. The comparison made in different energy...
A comparison study on three different radiation detectors used for liquid levelmetry
In this paper, three different radiation detectors (BF3 counter, NE213 and BGO scintillators) and an 241Am–Be isotopic neutron–gamma source have been used for a typical liquid levelmetry. The study shows that the use of the Am–Be source together...
Optical photon transport and geometry contributions to time response of scintillation detectors
The sensitivities of both time and energy resolutions of a typical scintillation detector to major optical parameters (i.e., paint reflectivity, quantum efficiency of photomultiplier tube and attenuation coefficient) have been estimated using a...
Longitudinal response uniformity of a rectangular-shaped plastic scintillator when exposed to mono-energetic gamma-rays
The longitudinal response uniformity of the rectangular-shaped plastic scintillators used in a thermal neutron imaging system proposed by Ghal-Eh and Green in 2016 is vital for its precise measurements in quality assurance studies of boron neutron...
NE102A Plastic Scintillator Response to 3He Ions
Plastic scintillators are widely used in detecting nuclear radiation due to their low construction cost, the ability to be produced in nearly any shape and size and relatively fast time response, among which NE102A (or its equivalents, BC400 and EJ...