scholarly journals Production method of environmental tracer 132Cs by accelerator-based neutron

2020 ◽  
Vol 239 ◽  
pp. 20002
Author(s):  
Tadahiro Kin ◽  
Naoto Araki ◽  
Md Kawchar Ahmed Patwary ◽  
Katsumi Aoki ◽  
Kosuke Yoshinami ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Feasibility Study ◽  
Nuclear Power ◽  
Production Method ◽  
Radioactive Cesium ◽  
Environmental Tracer ◽  
Production Experiment ◽  
Environment Study ◽  
Neutron Method

Cesium-132 has proposed as an alternative tracer of 137Cs for environment study on radioactive cesium dynamics released by a nuclear power plant accident. In the present study, we conducted a production experiment of the 132Cs by means of accelerator-based neutron method to investigate production amount and radioactive purity. A 12-g Cs2CO3 sample was irradiated by the accelerator-based neutron via the C(d,n) reactions by 1.2 µA of 30-MeV deuterons. As a result, 102 kBq/g of 132Cs was obtained with higher than 98.5% radioactive purity. Following that, a feasibility study of cesium dynamics measurement in andosol soil was performed. We found distribution of absorption of cesium in andosol soil can be clearly measurable by the produced 132Cs tracer.

Dissolution, Mechanical Properties, and Thermal Stability of Microparticles Containing Radioactive Cesium on Plant Litter Derived from the Fukushima Daiichi Nuclear Power Plant Accident,  and Soil Decontamination Trials 

2021 ◽  
Author(s):  
Ichiro Tanaka ◽  
Atsushi Yamaguchi ◽  
Kenji Kikuchi ◽  
Nobuo Niimura ◽  
Yume Saeki ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Plant Litter ◽  
Radioactive Cesium ◽  
Soil Decontamination ◽  
Fdnpp Accident ◽  
Fukushima Daiichi

<p>The radioactive cesium (<sup>134</sup>Cs and <sup>137</sup>Cs), which originated from the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident, has remained in the soil and on plants as water-insoluble microparticles (termed as CsMPs) to some extent, and maintained relatively high radioactivity levels in the district. However, it has been reported that the radioactive Cs has been absorbed by plants. To interpret this phenomenon, the authors investigated CsMPs to determine if they become soluble during filtration and dialysis experiments. Moreover, other physical properties, such as mechanical properties and thermal stability, were observed during the course of the relevant experiments. These properties can be obtained by using carbonized charcoal litter with CsMPs. And simple and economic decontamination trials of the soil were performed by sieving after drying and roughly crushing.</p>

scholarly journals Abundance and distribution of radioactive cesium-rich microparticles released from the Fukushima Daiichi Nuclear Power Plant into the environment

Chemosphere ◽  
2020 ◽  
Vol 241 ◽  
pp. 125019 ◽  
Author(s):  
Ryohei Ikehara ◽  
Kazuya Morooka ◽  
Mizuki Suetake ◽  
Tatsuki Komiya ◽  
Eitaro Kurihara ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Radioactive Cesium ◽  
Fukushima Daiichi ◽  
Abundance And Distribution

scholarly journals Depth profiles of radioactive cesium and iodine released from the Fukushima Daiichi nuclear power plant in different agricultural fields and forests

2012 ◽  
Vol 46 (4) ◽  
pp. 287-295 ◽  
Author(s):  
TAKESHI OHNO ◽  
YASUYUKI MURAMATSU ◽  
YOSHINORI MIURA ◽  
KAZUMASA ODA ◽  
NAOYA INAGAWA ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Agricultural Fields ◽  
Radioactive Cesium ◽  
Depth Profiles ◽  
Fukushima Daiichi

scholarly journals Dissolution, Mechanical Properties, and Thermal Stability of Microparticles Containing Radioactive Cesium on Plant Litter Derived from the Fukushima Daiichi Nuclear Power Plant Accident

2020 ◽  
pp. 1-8
Author(s):  
Ichiro Tanaka ◽  
Atsushi Yamaguchi ◽  
Kenji Kikuchi ◽  
Masakazu Komatsuzaki ◽  
Ichiro Tanaka ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Plant Litter ◽  
Radioactive Cesium ◽  
Fdnpp Accident ◽  
Fukushima Daiichi ◽  
Thermal Stability Of

Most of the radioactive cesium (134Cs and 137Cs), which originated from the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident, has remained in the soil and on plants as water-insoluble microparticles (termed as CsMPs) and maintained relatively high radioactivity levels in the district. However, it has been reported that the radioactive Cs has been absorbed by plants. To interpret this phenomenon, the authors investigated CsMPs to determine if they become soluble during filtration and dialysis experiments. Moreover, other physical properties, such as mechanical properties and thermal stability, were observed during the course of the relevant experiments. These properties can be obtained by using carbonized charcoal litter with CsMPs.

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