The first use of 236U in the general environment and near a shutdown nuclear power plant

Quinto, F.; Steier, Peter; Wallner, Gabriele; Wallner, A.; Srncik, M.; Bichler, Max; Kutschera, W.; Terrasi, F.; Petraglia, Antonio; Sabbarese, C.

doi:10.1016/j.apradiso.2009.05.007

Cited by 46 publications

(34 citation statements)

References 16 publications

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“…Good agreement is clearly evident (the ratio ranges from 0.76 to 1.17) and the 236 U/ 238 U ratios range from 10 −9 to 10 −8 . Notably, the ratios are consistent with global fallout; they agree with sediment results from the Garigliano NPP drain channel and Garigliano river, which range from 0.6 to 11×10 −8 as reported in [11]. Moreover, the values are comparable with the BSC2 sample, from the plain of Sele, Salerno province, which is geologically similar to but ∼ 100 km distant from to the GNPP.…”

Section: Heavy Ion Accelerator Symposium 2014supporting

confidence: 78%

Uranium comparison by means of AMS and ICP-MS and Pu and¹³⁷Cs results around an Italian Nuclear Power Plant

Cesare

Tims

Fifield

2015

EPJ Web of Conferences

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Abstract. Italy built and commissioned 4 nuclear power plants between , which delivered a total of 1500 MW. All four were closed down after the Chernobyl accident following a referendum in 1987. One of the plants was Garigliano, commissioned in 1959. This plant used a 160 MW BWR1 (SEU of 2.3 %) and was operational from 1964 to 1979, when it was switched off for maintenance. It was definitively stopped in 1982, and is presently being decommissioned. We report here details on the chemistry procedure and on the measurements for soil samples, collected up to 4.5 km from the Nuclear Plant. A comparison between uranium ( 238 U) concentration as determined by means of AMS (Accelerator Mass Spectrometry) and by ICP-MS (Inductively

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Section: Heavy Ion Accelerator Symposium 2014supporting

confidence: 78%

Uranium comparison by means of AMS and ICP-MS and Pu and¹³⁷Cs results around an Italian Nuclear Power Plant

Cesare

Tims

Fifield

2015

EPJ Web of Conferences

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“…The AMS technique allows measurements to be made on only a few grams of material, so it was also possible to make measurements as a function of depth. The full details of the sampling and preparation are given in Quinto et al, 2009, together with all the results.…”

Section: Activity Measurements In Stratigraphic Samples Of Soilmentioning

confidence: 99%

Assessment of the radiological impact of a decommissioned nuclear power plant in Italy

et al. 2012

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The assessment of the radiological impact of a decommissioned nuclear power plant is presented here through the results of an environmental monitoring survey carried out in the area surrounding the Garigliano Power Plant. The levels of radioactivity in soil, water, air and other environmental matrices are shown, in which α, β and γ activity and the γ equivalent dose rate are measured. Radioactivity levels of the samples from the Garigliano area are analyzed and then compared with those from a control zone situated more than 100 km away. Moreover, a comparison is made with a previous survey carried out in 2001. The analyses and comparisons show no significant alteration in the radiological characteristics of the area surrounding the plant, with the overall radioactivity depending mainly on the global fallout and natural sources.

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“…Furthermore, extraction and measurement of 236 U and the Pu isotopes from the same environmental material has been demonstrated at the levels necessary [12,13]. There is, however, very little data in the literature regarding concentrations of fallout 236 U in soils, and even less regarding the use of 236 U as an environmental tracer, although first attempts have been reported recently [14,15].…”

Section: Uranium-236mentioning

confidence: 99%

Actinides, accelerators and erosion

Tims

Fifield

2012

EPJ Web of Conferences

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Abstract. Fallout isotopes can be used as artificial tracers of soil erosion and sediment accumulation. The most commonly used isotope to date has been 137 Cs. Concentrations of 137 Cs are, however, significantly lower in the Southern Hemisphere, and furthermore have now declined to 35% of original values due to radioactive decay. As a consequence the future utility of 137 Cs is limited in Australia, with many erosion applications becoming untenable within the next 20 years, and there is a need to replace it with another tracer. Plutonium could fill this role, and has the advantages that there were six times as many atoms of Pu as of 137 Cs in fallout, and any loss to decay has been negligible due to the long half-lives of the plutonium isotopes. Uranium-236 is another long-lived fallout isotope with significant potential for exploitation as a tracer of soil and sediment movement. Uranium is expected to be more mobile in soils than plutonium (or caesium), and hence the 236 U/Pu ratio will vary with soil depth, and so could provide an independent measure of the amount of soil loss. In this paper we discuss accelerator based ultra-sensitive measurements of plutonium and 236 U isotopes and their advantages over 137 Cs as tracers of soil erosion and sediment movement.

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The first use of 236U in the general environment and near a shutdown nuclear power plant

Cited by 46 publications

References 16 publications

Uranium comparison by means of AMS and ICP-MS and Pu and¹³⁷Cs results around an Italian Nuclear Power Plant

Uranium comparison by means of AMS and ICP-MS and Pu and¹³⁷Cs results around an Italian Nuclear Power Plant

Assessment of the radiological impact of a decommissioned nuclear power plant in Italy

Actinides, accelerators and erosion

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The first use of 236U in the general environment and near a shutdown nuclear power plant

Cited by 46 publications

References 16 publications

Uranium comparison by means of AMS and ICP-MS and Pu and137Cs results around an Italian Nuclear Power Plant

Uranium comparison by means of AMS and ICP-MS and Pu and137Cs results around an Italian Nuclear Power Plant

Assessment of the radiological impact of a decommissioned nuclear power plant in Italy

Actinides, accelerators and erosion

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Product

Resources

About

Uranium comparison by means of AMS and ICP-MS and Pu and¹³⁷Cs results around an Italian Nuclear Power Plant

Uranium comparison by means of AMS and ICP-MS and Pu and¹³⁷Cs results around an Italian Nuclear Power Plant