Plastic scintillator beta ray scanner for in-situ discrimination of beta ray and gamma ray radioactivity in soil

Bae, Jun Woo; Kim, Hee Reyoung

doi:10.1016/j.net.2019.11.013

Cited by 9 publications

(11 citation statements)

References 16 publications

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“…The ratio between elastic scatter and inelastic scatter η is higher for the element with larger Z, which means that more inelastic scatterings happen in the low-Z element and thus more photons are emitted and high scintillator performance can be obtained. Recently, beta-ray scintillators are mainly fabricated using organic single crystals, liquids, or plastics, which usually suffer from high-cost production, carcinogenicity, complex fabrication, and poor thermal stability 105,106 .…”

Section: Beta Particle Detectorsmentioning

confidence: 99%

Recent advances in radiation detection technologies enabled by metal-halide perovskites

Yang

Zheng

2021

Mater. Adv.

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Section: Beta Particle Detectorsmentioning

confidence: 99%

Recent advances in radiation detection technologies enabled by metal-halide perovskites

Yang

Zheng

2021

Mater. Adv.

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“…Meanwhile, β particle continuously loses energy in the medium (shown in Figure 1b) [40,41]. As a result, the effective penetration range of the electron is short because the total range through which particles have moved and the electrons travel in a straight line do not match [42,43].…”

Section: Energy Regionmentioning

confidence: 99%

“…The scintillator acts by converting radiation into scintillation and converts its light into current and amplifies it through the light sensor to perform an energy analysis of incident radiation. Scintillators suitable for radiation detectors afford the following characteristics [27,[30][31][32]40,42,48,51,53].…”

Section: Characteristics Of the Scintillatormentioning

confidence: 99%

Low Energy Beta Emitter Measurement: A Review

et al. 2020

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The detection and monitoring systems of low energy beta particles are of important concern in nuclear facilities and decommissioning sites. Generally, low-energy beta-rays have been measured in systems such as liquid scintillation counters and gas proportional counters but time is required for pretreatment and sampling, and ultimately it is difficult to obtain a representation of the observables. The risk of external exposure for low energy beta-ray emitting radioisotopes has not been significantly considered due to the low transmittance of the isotopes, whereas radiation protection against internal exposure is necessary because it can cause radiation hazard to into the body through ingestion and inhalation. In this review, research to produce various types of detectors and to measure low-energy beta-rays by using or manufacturing plastic scintillators such as commercial plastic and optic fiber is discussed. Furthermore, the state-of-the-art beta particle detectors using plastic scintillators and other types of beta-ray counters were elucidated with regard to characteristics of low energy beta-ray emitting radioisotopes. Recent rapid advances in organic matter and nanotechnology have brought attention to scintillators combining plastics and nanomaterials for all types of radiation detection. Herein, we provide an in-depth review on low energy beta emitter measurement.

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“…In terms of radiation management, radioactive waste generated from nuclear facilities requires thorough radiological measurement and evaluation because there is a possibility of radiation exposure of workers and the release of radioactive materials into the environment during decommissioning. The scintillation detector widely used for in situ measurements is one of the most representative methods of indirect ionization and consists of a scintillator and an optical sensor [18][19][20][21][22]. The scintillator interacts with radiation such as gamma-rays and then emits light in the UV or visible region, and the photosensor converts the light into an electrical signal.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Plastic Scintillator for Detection of Gamma-Rays: Simulation and Experimental Study

Min

Kim

et al. 2021

Chemosensors

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Plastic scintillators are widely used in various radiation measurement applications, and the use of plastic scintillators for nuclear applications including decommissioning, such as gamma-ray detection and measurement, is an important concern. With regard to efficient and effective gamma-ray detection, the optimization for thickness of plastic scintillator is strongly needed. Here, we elucidate optimization of the thickness of high-performance plastic scintillator using high atomic number material. Moreover, the EJ-200 of commercial plastic scintillators with the same thickness was compared. Two computational simulation codes (MCNP, GEANT4) were used for thickness optimization and were compared with experimental results to verify data obtained by computational simulation. From the obtained results, it was confirmed that the difference in total counts was less than 10% in the thickness of the scintillator of 50 mm or more, which means optimized thickness for high efficiency gamma-ray detection such as radioactive 137Cs and 60CO. Finally, simulated results, along with experimental data, were discussed in this study. The results of this study can be used as basic data for optimizing the thickness of plastic scintillators using high atomic number elements for radiation detection and monitoring.

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Plastic scintillator beta ray scanner for in-situ discrimination of beta ray and gamma ray radioactivity in soil

Cited by 9 publications

References 16 publications

Recent advances in radiation detection technologies enabled by metal-halide perovskites

Recent advances in radiation detection technologies enabled by metal-halide perovskites

Low Energy Beta Emitter Measurement: A Review

Optimization of Plastic Scintillator for Detection of Gamma-Rays: Simulation and Experimental Study

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