Source term estimation of radioxenon released from the Fukushima Dai-ichi nuclear reactors using measured air concentrations and atmospheric transport modeling

Eslinger, Paul W.; Biegalski, S. R.; Bowyer, Ted W.; Cooper, Matthew W.; Haas, Derek A.; Hayes, James C.; Hoffman, Ian; Korpach, Ed; Jing, Yi; Miley, Harry S.; Rishel, Jeremy P.; Ungar, R. Kurt; White, Brian; Woods, Vincent

doi:10.1016/j.jenvrad.2013.10.013

Cited by 44 publications

(10 citation statements)

References 19 publications

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“…Inverse modeling approaches that combine environmental measurements and atmospheric dispersion models are efficient in reducing uncertainty and improving assessment of atmospheric releases, and therefore are commonly used for source determination (Stohl et al, 2012a;Saunier et al, 2013;Eslinger et al, 2014;Hamburger et al, 2014;Winiarek et al, 2014). Other source estimates of airborne radionuclides from the FD-NPP reactors apply Lagrangian particle dispersion (e.g., FLEXPART model; Stohl et al, 2005) and a different calculation algorithm (Stohl et al, 2012a;Benmergui, 2013;Eslinger et al, 2014). Three categories of environmental measurements can be used for constraining the nuclear sources: airborne activity concentrations, surface activities, and gamma dose rates.…”

Section: Identification Of Radioactive Sourcesmentioning

confidence: 99%

“…Hofman et al (2015) conducted source term retrieval using inverse modeling of instantaneous or timeintegrated gamma dose rate measurements. The majority of estimates are designed to use one type of measurement; e.g., atmospheric trace constituents (Winiarek et al, 2012;Benmergui, 2013;Eslinger et al, 2014), but few studies use multi-measurements (Stohl et al, 2012a;Saunier et al, 2013). It is important to develop new modeling methods to assess the complex source term of real accidental situations using multi-data, including radiation dose rate measurements generated by most measurement facilities.…”

Section: Identification Of Radioactive Sourcesmentioning

confidence: 99%

“…The Fukushima nuclear disaster led to trace amounts of radiation, such as iodine-131 and caesium-137, being detected in many places around the world (e.g., New York State, Alaska, Hawaii, Oregon, California, Montreal, Helsinki, Milano, Minsk, Vienna, UK and Austria) (MacKenzie, 2011;Yasunari et al, 2011;Mason et al, 2012;Stohl et al, 2012b;Priyadarshi et al, 2013;Kaeriyama et al, 2014;Koo et al, 2014). At the same time, large amounts of radioactive isotopes have been released into the Pacific Ocean (Madigan et al, 2012;Eslinger et al, 2014;Nair et al, 2014). According to The World Health Organization (WHO) report (2012), the radiation effective doses in the most affected areas of Fukushima Prefecture for the first year were estimated to range from 10-50 mSv, and the thyroid doses were estimated within the band of 10-100 mSv.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Predicting and Controlling Nuclear Accident Hazards: Issues and Challenges

Huang

Zhang

Yang³

et al. 2016

Aerosol Air Qual. Res.

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Global nuclear security is threatened by nuclear accidents and the purposeful use of nuclear weapons. Accordingly, atmospheric pollution prediction and control for nuclear accidents, including identifying sources in nuclear or radiological incidents, predicting hazards to persons and environments, and optimally controlling accident hazards, are current areas of nuclear security research. Source inversion, hazard prediction, and optimal control are three interrelated key issues for nuclear accident emergencies. Although progress has been made in hazard prediction for nuclear accidents since the 1970s and some source inversion methods were presented after the Fukushima nuclear accident, optimal control methods are rarely reported, source inversion methods are less practical, and prediction accuracy remains unsatisfactory. Thus, novel theories are required for optimal control and source inversion for nuclear accidents, and to develop methods for simulating the influences of radioactive plume dispersion and deposition under complex meteorological and terrain conditions. This work reviews the current progress, uncertainties, and research needs in nuclear security. In addition, a rapid source inversion method based on the Lagrangian model is developed and implemented in a test case. To address future challenges, an innovative architecture for Atmospheric Pollution Prediction and Optimal Control System for nuclear accidents (APPOCS) is proposed, and the perspectives are generalized to promote future research on nuclear accident hazard prediction and optimal control. At this time, forward-looking ideas and revolutionary perspectives are required to foster nuclear security research in the academic community.

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Section: Identification Of Radioactive Sourcesmentioning

confidence: 99%

Section: Identification Of Radioactive Sourcesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Predicting and Controlling Nuclear Accident Hazards: Issues and Challenges

Huang

Zhang

Yang³

et al. 2016

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

show abstract

“…Many assessments of the releases of radionuclides from the accident at the Fukushima Daiichi NPP have been performed using established mathematical models and methods and associated computer codes (see Refs [170][171][172][173][174][175][176][177]). …”

Section: Releasesmentioning

confidence: 99%

The Fukushima Daiichi Accident

Jammal¹,

Vincze²,

Heitsch³

et al. 2012

Le Nucléaire Un an Après Fukushima

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“…In this situation, (x s ,y s ,z s ) represents the spatial location of the source (longitude, latitude, elevation), q s is the strength of the source (mass/time) and (t on ,t off ) is the start and stop times of the release. A number of techniques can be used to choose the best h given one or more sample values at one or more detectors [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Multi-detection events, probability density functions, and reduced location area

Eslinger

Schrom

2015

J Radioanal Nucl Chem

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Several efforts have been made in the Comprehensive Nuclear-Test-Ban Treaty (CTBT) community to assess the benefits of combining detections of radionuclides to improve the location estimates available from atmospheric transport modeling (ATM) backtrack calculations. We present a Bayesian estimation approach rather than a simple dilution field of regard approach to allow xenon detections and non-detections to be combined mathematically. This system represents one possible probabilistic approach to radionuclide event formation. Application of this method to a recent interesting radionuclide event shows a substantial reduction in the location uncertainty of that event.

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Source term estimation of radioxenon released from the Fukushima Dai-ichi nuclear reactors using measured air concentrations and atmospheric transport modeling

Cited by 44 publications

References 19 publications

Predicting and Controlling Nuclear Accident Hazards: Issues and Challenges

Predicting and Controlling Nuclear Accident Hazards: Issues and Challenges

The Fukushima Daiichi Accident

Multi-detection events, probability density functions, and reduced location area

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