Environmental gamma radiation analysis for Ulsan city with the highest nuclear power plant density in Korea

Lee, UkJae; Bae, Jun Woo; Kim, Hee Reyoung

doi:10.1016/j.jenvrad.2017.08.015

Cited by 5 publications

(5 citation statements)

References 12 publications

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“…If the peak is an "incoherent peak", the matching degree between the peak and the characteristic peak of the initial nuclide and the total matching degree (or confidence) obtained by the number of peaks matched with the initial nuclide are calculated using Eqs. ( 1) and (2). When the confidence exceeds a certain threshold, a nuclide is considered to exist.…”

Section: Spectrum Data Processingmentioning

confidence: 99%

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Design of an Airborne γ-ray Spectrometry System Based on Unmanned Aerial Vehicle

Jia

Qin

et al. 2023

J. Phys.: Conf. Ser.

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An airborne γ-ray spectrometry system that can be installed on an unmanned aerial vehicle (UAV) was designed to satisfy the requirements of radioactive mineral exploration and environmental radiation monitoring. The system consists of an airborne measurement device and a ground control platform. The airborne measurement device includes a γ-ray spectrum survey instrument, the main controller, data and graph transmission module. The ground control platform integrates the data and graph transmission module, industrial computer, energy spectrum analysis and processing software. Field flight tests showed that the data collected by the system were stable and reliable, and the survey results were consistent with existing data. The designed system can be applied to small-scale radioactive geological surveys, environmental surveys, and radioactive pollution monitoring.

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Section: Spectrum Data Processingmentioning

confidence: 99%

“…Nuclear facilities have a certain amount of radioactive emissions during daily operation, and the diffusion range of radioactive substances is wide [1][2]. Although there are monitoring stations on the ground, the distribution of stations is limited.…”

Section: Introductionmentioning

confidence: 99%

Design of an Airborne γ-ray Spectrometry System Based on Unmanned Aerial Vehicle

Jia

Qin

et al. 2023

J. Phys.: Conf. Ser.

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“…The bottom of the column is fi lled with a 1-cm-thick layer of soil [13], and the air above this surface is used as an air model. The soil density [14] is 1.7 g/cm 3 , and the soil mass is M = 4710 kg. Table 2 shows the air and soil content.…”

Section: Construction Of a Near-ground Reference Radiation Fi Eld Modelmentioning

confidence: 99%

“…For the early phase of nuclear accidents, this study considers 2 h as the step length. For the mid--late stage, 100 days as a time node is used to calculate 12 different periods (1 day, 3,5,7,9,11,13,20,40,60,80, and 100 days) to obtain the change curve of atomic number and activity of the radioactive decay progeny, as shown in Fig. 5.…”

Section: Ambient Dose Rate Of the Single-nuclide Reference Radiation Fi Eldmentioning

confidence: 99%

“…The Fukushima accident in Japan in March 2011 caused severe radioactive nuclear leakage and spread to surrounding areas, which had a large-scale impact on the environment in a short period of time [1,2]. An important measurement and the key to ensuring quality in the environmental radiation monitoring of nuclear accidents is the gamma radiation dose rate of the ambient surface [3]. The most commonly used technical monitoring is vehicle-borne environmental radiation measurement equipment due to its high mobility, rapid response, and the ability to obtain the distribution data of the environmental radiation fi eld.…”

Section: Introductionmentioning

confidence: 99%

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Research on dose correction method of vehicle-borne environmental radiation measurement equipment

Ren

Yang

et al. 2021

Nukleonika

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This study establishes a near-ground reference radiation field based on typical radionuclides of the Fukushima accident in response to the need for vehicle-borne environmental radiation measurement equipment that can accurately evaluate the environmental dose of nuclear accidents. The Monte Carlo code FLUKA is used to study the environmental dose of such equipment in the early and mid-late reference radiation fields of nuclear accidents. Results of the air dose rate at 1 m above the ground were corrected to eliminate data difference between diverse measurement platforms. Simulation results show that t he dose correction factor (CF) fluctuates at approximately 0.8813 in the early reference radiation field and at approximately 0.6711 in the mid-late reference radiation field. This deviation of the dose CF in the early and mid-late reference radiation fields is within 2% and is not affected by the change in detector position. This research can be applied to obtain more accurate measurement of an ambient dose in the near-ground radiation field and support the vehicle-borne environmental radiation measurement technology.

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A method of detecting level change of uranium fluorination mixture in the hopper by gamma-ray dose

Lei

Qin

et al. 2021

Applied Radiation and Isotopes

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Environmental gamma radiation analysis for Ulsan city with the highest nuclear power plant density in Korea

Cited by 5 publications

References 12 publications

Design of an Airborne γ-ray Spectrometry System Based on Unmanned Aerial Vehicle

Design of an Airborne γ-ray Spectrometry System Based on Unmanned Aerial Vehicle

Research on dose correction method of vehicle-borne environmental radiation measurement equipment

A method of detecting level change of uranium fluorination mixture in the hopper by gamma-ray dose

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